/Investor DB

Breakthrough Energy Ventures — Full Portfolio

157 tracked investments · listed companies and verified rows first

Fervo Energyfervoenergy.cominNASDAQ: FRVOSeries B · Dec 2025 · $28M

Fervo Energy develops next-generation geothermal technology using advanced drilling and sensing techniques to unlock carbon-free, 24/7 power generation in previously uneconomic locations.

CleantechClimate TechEnergyHouston, US

Tim Latimer(Founder)inJack Norbeck(Founder)in

BoardDavid Thomas Danielson(Director)inNicholas Walrod(Director)inIon Yadigaroglu(Director)

Board seatChristina KarapatakiDavid Danielson· per SEC Form D

Co-investorsB Capital GroupB4 CapitalBaruch Future VenturesBeast VenturesCarbonCongruent Ventures+16 more

Airloom Energyairloom.energyinSep 2025✓ verified

Airloom engineers next-generation utility-scale wind turbines designed for mass production and deployment in diverse locations, offering low-cost, reliable energy generation with reduced infrastructure requirements.

CleantechEnergyHardwareLaramie, US

Robert Lumley(Founder)inJames Singer(Executive Officer, Director)Neal Rickner(Executive Officer, Director)in

BoardJohn Singer(Director)Sarah Lewensohn(Director)

Board seatPhil Larochelle· per SEC Form D

Co-investorsAmplify CapitalCapital FactoryCrosscut VenturesGaingelsKeiki CapitalLowercarbon Capital+2 more

Lilac Solutionslilacsolutions.cominJun 2026✓ verified

Lilac Solutions develops direct lithium extraction technology using ceramic ion exchange media, enabling fast, clean, and affordable lithium production from brines for the electric vehicle and battery industries.

CleantechClimate TechEnergyNew MaterialsOakland, US

David Snydacker(Founder)inNicholas Goldberg(Chief Legal Officer of Issuer)David Gelinas(Chief Financial Officer of Issuer)inRaef Sully(Chief Executive Officer of Issuer)inDave Snydacker(Founder)

BoardClay Dumas(Director)in

Board seatDavid Danielson· per SEC Form D

Co-investorsLowercarbon CapitalAzolla VenturesBerkeley Angel NetworkBMW i VenturesE8 AngelsEarthshot Ventures+11 more

75F75f.ioin𝕏Feb 2021 · $45M✓ verified

75F provides IoT-based building management systems combining hardware and software to optimize energy efficiency and indoor air quality in commercial buildings.

CleantechEnergyEnterprise SoftwareIoTMankato, US

Deepinder Singh(Executive Officer, Director)in

BoardBill Gatesin

Co-investorsBuilding VenturesRevolutionClimate InvestmentEvergreen Climate InnovationsWIND VenturesNext47+1 more

Arnergyarnergy.comin𝕏Apr 2025 · $18M✓ verified

Arnergy provides modular, scalable solar energy systems and real-time energy management solutions for homes and businesses across Africa.

CleantechEnergyIoTLagos, NG

Co-investorsAll OnBritish International InvestmentNorfund

Blackburn Energyblackburnenergy.com✓ verified

Blackburn Energy manufactures RelGen, a hybrid charging system for class 5-8 trucks that generates up to 5X more energy than standard alternators to charge auxiliary batteries used for electric APUs and power liftgates.

CleantechEnergyHardwareBoston, US

Andrew Amigo(CEO & Founder)Dan Tobin(Director)

Co-investorsGeekdom

Blue World Technologiesblue.worldinSeries B · Aug 2022 · $37M✓ verified

Blue World Technologies develops high-temperature PEM methanol fuel cells that serve as clean energy solutions for industrial applications worldwide.

CleantechClimate TechDeep TechEnergyHardwareAalborg, DK

Anders Korsgaard(Chief Executive Officer and Co-founder)inMads Bang(Chief Technology Officer)inMads Friis Jensen(Chief Commercial Officer)in

Co-investorsMaersk GrowthBEVVaekstfonden

Boston Metalbostonmetal.cominSep 2023✓ verified

Boston Metal develops Molten Oxide Electrolysis (MOE), an electrified process for producing steel and other metals from a range of oxide feedstocks without direct emissions.

Advanced ManufacturingCleantechClimate TechNew MaterialsWoburn, US

Donald Sadoway(Founder)inAntoine Allanore(Founder)Tadeu Carneiro(CEO)inJames Yurko(Founder)

Co-investorsClimate InvestmentPrelude VenturesInternational Finance CorporationBMW i VenturesEnergy Impact PartnersFine Structures Ventures+8 more

Circcirc.earthinJul 2022 · $30M✓ verified

Circ develops recycling technology that breaks down textile waste, including poly-cotton blends, to recover fibers for producing new materials such as pulp used by fiber manufacturers and apparel brands.

Circular EconomyCleantechClimate TechNew Materials

Peter Majeranowski(Chief Executive Officer)in

Co-investorsAlante CapitalCirculate CapitalCard Sound CapitalEnvisioning PartnersLansdowne PartnersMarubeni+7 more

CubicPVcubicpv.comin𝕏Jun 2023 · $103M✓ verified

CubicPV develops perovskite tandem solar modules designed to advance beyond traditional silicon-based solar cell technology.

CleantechEnergyHardware

Co-investorsNorth Bridge Venture Partners & Growth Equity

Dioxycledioxycle.com✓ verified

Dioxycle develops electricity-driven technology to convert waste carbon emissions into chemical feedstocks for industrial manufacturing.

Advanced ManufacturingCircular EconomyCleantechClimate TechDeep TechParis, FR

Sarah Lamaison, PhD(Founder)inDavid Wakerley, PhD(Founder)inDavid Wakerley(Founder)Sarah Lamaison(Founder)

Co-investorsGigascale CapitalLowercarbon CapitalCollaborative FundAQUITI GestionPlaneteer Capital

Fourth Powergofourth.comin𝕏Sep 2025 · $20M✓ verified

Fourth Power develops thermal energy storage technology that converts electricity into heat for storage and back to electricity on demand, using high-temperature molten tin and thermophotovoltaic conversion.

CleantechClimate TechDeep TechEnergyHardwareMassachusetts, US

Asegun Henry(Founder)inArvin Ganesan(Founder)in

Co-investorsDCVC (Data Collective)Munich Re Ventures

Graphitic Energygraphitic.comin✓ verified

Graphitic Energy develops methane pyrolysis technology that converts natural gas into graphitic carbon and low-carbon hydrogen.

CleantechDeep TechEnergyNew Materials

Eric McFarlandinPatrick Hanks(Chief Technology Officer)in

Co-investorsEnergy Capital VenturesEni Next

H2Proh2pro.coinJan 2022✓ verified

H2Pro develops Decoupled Water Electrolysis (DWE) technology to produce hydrogen and oxygen at separate times, invented at the Technion, as a lower-cost method for green hydrogen production.

CleantechClimate TechEnergyHardwareCaesarea, IL

Gideon Grader(Founder)inTalmon Marco(Founder)inHen Dotan(Founder)inAvner Rothschild(Founder)inTzahi Rodrig(CEO)in

Co-investorsContrarian VenturesHorizons VenturesIN VentureWIND VenturesYara Growth VenturesArcelorMittal+2 more

Heart Aerospaceheartaerospace.comin𝕏Series A · Feb 2024 · $107M✓ verified

Heart Aerospace develops battery-electric aircraft with an all-electric range of about 250 miles.

Advanced ManufacturingCleantechClimate TechHardwareMobility & TransportationSpace TechLos Angeles, US

Anders Forslund(Founder & CEO)inKlara Forslund(Founder)Bob Criner(Electric Aircraft Propulsion System Engineer)in

Co-investors2am VCAlumni VenturesCastor VenturesKoru CapitalLowercarbon CapitalNorrsken VC+15 more

Mangrove Lithiummangrovelithium.comin𝕏✓ verified

Mangrove Lithium is a cleantech company that develops a patented, feedstock-flexible electrochemical refining technology to convert diverse lithium feedstocks into battery-grade lithium hydroxide and carbonate.

CleantechEnergyNew MaterialsDelta, CA

Saad Dara(Founder)inDavid St. Angelo(Chief Technology Officer)inAnnie Liu(Chief Commercial and Strategy Officer)inAlfred Lam(Founder)Arman Bonakdarpour(Founder)David P. Wilkinson(Founder)

Co-investorsBMW i VenturesBDC Capital CorporationCanada Growth FundOrion Industrial VenturesAsahi Kasei Corporate Venture CapitalATEL Ventures+3 more

Mantle8mantle8.cominSeed · Feb 2025 · $4M✓ verified

Mantle8 is a natural hydrogen exploration company developing proprietary geoscience technology—including its GeoLogix prospect-generation algorithm and HOREX multiphysics imaging—to locate and quantify naturally occurring hydrogen resources.

CleantechClimate TechDeep TechEnergy

Emmanuel Masini(Founder)inEmmanuel Masini (Manu)(Founder & CEO)

Co-investorsKiko VenturesSandwaterWind VentureBpifranceIP Group

Mission Zero Technologiesmissionzero.techin𝕏May 2022 · $5M✓ verified

Mission Zero develops carbon capture technology aimed at converting CO₂ into a usable resource as an alternative to oil.

CleantechClimate TechDeep TechLondon, GB

Shiladitya Ghosh(Founder)inNicholas Chadwick(Founder)inGael Gobaille-Shaw(Founder)Nick Chadwick(Co-founder)Gaël(Co-founder)Shil(Co-founder)

Co-investorsDeep Science VenturesThird DerivativeWorld Fund

Pachamapachama.comin𝕏Series A · May 2022 · $55M✓ verifiedacquired by Carbon Direct

Pachama uses computer vision and satellite data to verify reforestation and conservation projects and operates a marketplace that channels funding to forest carbon projects.

Advanced ManufacturingAI & Machine LearningClimate TechEnterprise SoftwareImpact & Social GoodMarketplacesSaaSSan Francisco, US

Diego Saez Gil(Founder)inTomas Aftalion(Founder)inEmma Chastain(Head of Operations)Levi Malott(Senior Engineer)Tim Brechbuehler(Recruiter)Henrrietta Opoku(Director of People)

Co-investorsLowercarbon CapitalAglae VenturesAirAngelsFirstrock CapitalJetstreamNimble Partners+31 more

Tempotempoenergy.comin𝕏Aug 2022✓ verified

Tempo develops a proprietary thermochemical storage metal-oxide (TSM) material, based on a magnesium compound that stores and releases high-temperature heat, to electrify industrial heat.

Advanced ManufacturingCleantechClimate TechEnergyNew MaterialsEast Lansing, US

DANE A BOYSEN(Executive Officer, Director, Promoter)Moawia Eldeeb(Founder)inJames Klausner(Founder)inNima Rahmatian(Founder)inKelvin Randhir(Founder)inAlessandro Bo(Founder)in

Co-investorsKhosla VenturesPrelude VenturesAlumni VenturesMichigan RiseNew System VenturesGreenoaks+2 more

Turntide Technologiesturntide.comin𝕏Mar 2021 · $80M✓ verified

Turntide designs and manufactures electric motors, power electronics, and energy storage systems as modular components for electrification across mobility and other industries.

Advanced ManufacturingCleantechHardwareMobility & TransportationSunnyvale, US

Piyush Desai(Founder)inSteve Hornyak(President & CEO)in

Co-investorsClimate InvestmentFifth WallBay Bridge Ventures ClimateBMW i VenturesFirst Generation CapitalFootPrint Coalition+7 more

Type One Energytypeoneenergy.cominJan 2026 · $87M✓ verified

Type One Energy is a fusion energy startup founded by stellarator experts to design and commercialize a next-generation stellarator fusion power plant.

CleantechClimate TechDeep TechEnergy

Chris Mowry(CEO)inBrian Matthews(Founder)Chris Hegna(Founder)David Anderson(Founder)John Canik(Founder)Randall Volberg(Founder)

Co-investorsBreakthrough VictoriaGD1Orbia VenturesTDK VenturesTRIRECVoLo Earth Ventures+4 more

Vantemvantem.cominJul 2022✓ verified

Vantem is a modular construction company that builds multifamily residential projects for developers using factory-built units assembled on-site.

Advanced ManufacturingConstruction TechPropTechClio, US

Chris Anderson(Founder & Chief Strategy Officer)in

Boardjohn preston(Director)

VEIRveir.cominFeb 2025 · $75M✓ verified

VEIR manufactures low- and medium-voltage superconducting systems that deliver electricity for high-performance AI data centers.

AI & Machine LearningDeep TechEnergyHardwareWoburn, US

Tim Heidel(CEO & Co-Founder)in

BoardDoug Stewart(Director)Adam Wallen(Executive Officer, Director)in

Co-investorsCongruent VenturesPiva CapitalTyche PartnersNational Grid PartnersVXI CapitalBaruch Future Ventures+6 more

Wbjournalwbjournal.comin𝕏✓ verified

Worcester Business Journal is a regional business news and analysis publication serving the Central Massachusetts market through print, digital, and event platforms.

Climate TechDeep TechEnergyMedia & EntertainmentPropTechCalifornia, US

Bob Mumgaard(CEO and co-founder)

Co-investorsTemasek

Antora Energyantora.comin𝕏Jul 2026 · $150M

Antora manufactures thermal battery systems for long-duration energy storage, serving manufacturers and data centers seeking to tap into low-cost renewable power.

CleantechClimate TechEnergyEnterprise SoftwareFintechHardwareImpact & Social GoodNew MaterialsSunnyvale, US

Andrew Ponec(Founder)inDavid Bierman(Founder)inJustin Briggs(Founder)inDavid Bierman, Ph.D.(Chief Commercial Officer, co-founder)Justin Briggs, Ph.D.(Chief Operating Officer, co-founder)Alfred Johnson(CEO & Co-Founder)

Board seatChristina Karapataki· per SEC Form D

Co-investorsAndreessen HorowitzBlackRockTemasekAll AboardCongruent VenturesCreative Destruction Lab (CDL)+25 more

Electric Hydrogeneh2.cominDec 2020 · $380M

Electric Hydrogen develops hydrogen production technology to support decarbonization.

Advanced ManufacturingCleantechClimate TechEnergyMassachusetts, US

Derek Warnick(Founder)inDavid Eaglesham(Founder)inRaffi Garabedian(Founder)inDorian West(Founder)inMargaret Deane(Executive Officer)

BoardDipender Saluja(Director)

Board seatDavid Danielson· per SEC Form D

Co-investorsCongruent VenturesEnergy Impact PartnersEquinor VenturesFifth WallHercules Capital, Inc.Prelude Ventures+9 more

M2X Energym2x.energyFeb 2026 · $40M

M2X Energy converts waste methane from landfills and biogas facilities into renewable natural gas and low-carbon methanol.

EnergyRockledge, US

Nicholas Stork(Director)Josh Browne(Founder)inPaul E. Yelvington(Chief Technology Officer)Nicholas Schwartz(Chief Manufacturing Officer)inMichael McLaughlin(Chief Development Officer)Adam R. Karpf(Chief Engineer)

Board seatDavid Danielson· per SEC Form D

Co-investorsAutodesk FoundationEni Next

MagLev Aeromaglevaero.cominDec 2024

Boston, US

Ian Randall(Executive Officer, Director)in

BoardRoderick Randall(Director)Rod Randall(Director)in

Board seatPhil LarochelleChristian GarciaCarmichael RobertsCarmichael M. Roberts· per SEC Form D

Co-investorsGrit Capital PartnersMaterial ImpactMoai CapitalStage 1 Ventures

Palliduspallidus.comNov 2022SEC filingmedium confidence

Houston, US

Glenn Sandgren(Executive Officer)

BoardMark Land(Director)

Board seatCooper Rinzler· per SEC Form D · $70M raise · filed Dec 2023

Co-investorsFine Structures VenturesRaptor GroupSQN Venture Partners, LLC

Prolific Machinesprolific-machines.cominMay 2024 · $42M

Prolific Machines licenses an optogenetics platform that adds light-based control to cell line development and GMP biomanufacturing, letting biopharma teams retrofit existing bioreactors and hosts to raise titers and manufacture complex molecule formats.

Advanced ManufacturingAI & Machine LearningBiotechDeep TechEmeryville, US

Maximilian HörnerinMax Huisman(Founder)inDeniz Kent(Founder)inDeniz Kent, Ph.D.(Founder)inDeclan Jones(Founder)inShahram Misaghiin

Board seatCooper Rinzler· per SEC Form D

Co-investorsBaruch Future VenturesDarco CapitalFootPrint CoalitionIn-Q-TelMayfield FundSolari Capital+4 more

Quidnetquidnetenergy.cominMay 2018

Quidnet Energy develops geomechanical energy storage technology that repurposes existing oil, gas, and hydroelectric infrastructure to provide grid-scale, long-duration energy storage.

CleantechDeep TechEnergyHardwareHouston, US

Aaron Mandell(Executive Officer)inDagong Zhou(Executive Officer, Director)Joe Zhou(CEO)inHoward Schmidt(Director)

BoardMatthew Nordan(Director)in

Board seatChristina Karapataki· per SEC Form D

Co-investorsClean Energy VentureCongruent VenturesHelium-3 VenturesNXT VenturesSorenson Impact FoundationClean Energy Ventures+1 more

REACTIVE TECHNOLOGIES Ltdreactive-technologies.comin𝕏Feb 2024

Reactive Technologies provides GridMetrix®, a grid measurement system combining distributed high-definition IoT devices (XMU) at the grid edge with cloud-based digital signal processing to measure grid inertia and system strength in real time.

CleantechEnergyIoTOxford

Marc Adrian Borrett(Director)

BoardVolker Bernd Beckers(Director)Robert Macklin(Director)Zahir Kasmani(Director)Steven Derek Clarke(Director)

Board seatSila Kiliccote· per SEC Form D

Co-investorsEquinor VenturesEuropean Investment Bank

Redwood Materialsredwoodmaterials.comin𝕏Apr 2020

Redwood Materials deploys large-scale energy storage systems for data centers and grid power while recycling batteries to recover critical minerals like lithium, nickel, cobalt, and copper as a domestic source of these materials.

Circular EconomyEnergyNew MaterialsCarson City, US

JB Straubel(Founder)inKevin Kassekert(Executive Officer)Jason Thompson(Executive Officer)inJ. B. Straubel(Founder)

Board seatDavid Danielson· per SEC Form D

Co-investorsBright Success CapitalCapricorn Investment GroupCoatue ManagementCollaborative FundCollective LiquidityCongruent Ventures+26 more

Rondo Energyrondo.comin𝕏Jun 2022

Rondo manufactures thermal battery systems that store energy by heating refractory bricks with renewable electricity and release it as continuous industrial heat and power for manufacturing processes.

CleantechClimate TechDeep TechEnergyHardwareCalifornia, US

John O'Donnell(Founder & Chief Innovation Officer)inJohn ODonnell(Executive Officer, Director)Pete von Behrens(Founder & Chief Technology Officer)inLily Guse(Executive Officer)inEric Trusiewicz(Chief Executive Officer)in

BoardDavid Rogers(Director)

Board seatMark Hartney· per SEC Form D

Co-investorsEnergy Impact PartnersCongruent VenturesSABIC VenturesSdcl Energy Efficiency Income TrustAramco VenturesEuropean Investment Bank

Sparkmetersparkmeter.ioMar 2022

SparkMeter provides metering and low-voltage transformer-sensing hardware combined with software for billing, payments, prepaid metering, customer and asset management, and grid management.

CleantechEnergyHardwareWashington, US

Daniel Schnitzer(Executive Officer, Director)in

BoardDaniel Goldman(Director)inBunmi Adekore(Director)Tokunboh Ishmael(Director)inRaymond Jay Dunn(Director)Allison Archambault(Director)

Board seatSila Kiliccote· per SEC Form D

Co-investorsAlitheia CapitalCapria VenturesEndgame CapitalLateral CapitalClean Energy VenturesFactor[e] Ventures+1 more

Stoke Spacestokespace.comin𝕏Seed · Feb 2026

Stoke Space develops fully reusable rockets for space transportation and mobility services.

Advanced ManufacturingDeep TechHardwareSpace TechSeattle, US

Andy Lapsa(Founder)inTom Feldman(Founder)inKelly Hennig(Executive Officer)inSula Bondaruk(Recruiter)Marla Nielsen(Recruiting Coordinator)Chantal Penton(Recruiter)

Board seatChristian Garcia· per SEC Form D

Co-investorsAbbhi CapitalAcequia Capital (AceCap)AF WPartnersATEL VenturesAurelia FoundryBalerion Space Ventures+61 more

Sustaerasustaera.cominNov 2021

Sustaera develops low-cost direct air capture (DAC) technology to remove carbon dioxide from the atmosphere.

CleantechClimate TechDeep TechDurham, US

Raghubir Gupta(Executive Officer, Director, Promoter)inCory Sanderson(Co-Founder and CEO)inBen Gardner(Co-Founder and Sr. Advisor, Projects)Shantanu Agarwal(Executive Officer, Director, Promoter)inDr. David Myers(Executive Chairman)Darren Legge(Chief Marketing Officer)

Board seatPhil Larochelle· per SEC Form D

Co-investorsThird Derivative

4242technologies.comin𝕏

42 provides an end-to-end analytics platform for DTC and wholesale retail brands, consolidating sales, stock, and customer data across stores, ecommerce, and wholesale channels into unified reporting.

Data & InfrastructureE-commerceEnterprise SoftwareRetail TechSaaSSan Francisco, US

Nick Porter(CTO)inCathy Han(CEO)inNicolas PorterPeter D. Yang(CEO)inLars Butzmann(Chief Analytics Officer)Kevin Stewart(Staff Software Engineer)

Co-investors500 GlobalY Combinator3one4 CapitalAgrolimen VenturesCRCM VenturesCrystal Venture Partners+4 more

44.014401.earthin𝕏

44.01 is a carbon removal company that mineralizes CO₂ by using natural processes to permanently convert captured carbon dioxide into rock.

CleantechClimate TechDeep Tech

Talal Hasan(Founder)inEhab Tasfai(Founder)Karan Khimji(Founder)

Co-investorsAir Liquide Venture Capital (ALIAD)Alumni VenturesBascom VenturesBasecamp FundClimate InvestmentFuture Planet Capital+9 more

Aerosealaeroseal.com

Seals leaky HVAC and building envelopes with a material plus AI and IoT hardware to cut CO2 emissions.

Miamisburg, OH, US

Amit Gupta(Chief Executive Officer)in

BoardDr. Mark Modera(Chief Scientific Advisor)

Co-investorsBaruch Future VenturesBuilding VenturesCarbonClimate InvestmentEnergy Impact PartnersAramco Ventures

Albedoalbedo.comin𝕏Series A · Jun 2022 · $35M

Albedo develops a flight-proven platform for Very Low Earth Orbit operations, providing satellite-based insights and connectivity services for national security and critical infrastructure systems.

Advanced ManufacturingClimate TechDeep TechDefense TechSpace TechDenver, US

Topher Haddad(Founder)inAyJay Lasater(Founder)inWinston Tri(Founder)inDylan Betts(Executive Officer)inAjJay Lasater(Founder)Becca Zukowski(Lead Recruiter)

Co-investorsAngel Collective Opportunity FundBlack FlagBooz Allen VenturesCommodity CapitalCubit CapitalDnx Ventures+26 more

Alpine Bionobellfoods.comin𝕏Series A

Nobell Foods develops cheese and other dairy products made from plant-derived dairy proteins, aiming to match the taste and price of conventional animal dairy.

BiotechClimate TechConsumerFoodTechSan Francisco, US

Magi Richani(Founder/CEO)inShu Li(Founder/CSO)

BoardChris Rivest(Director)Vijay Pande(Director)inKyle Vogt(Director)

Co-investorsAgFunderAndreessen HorowitzDCVC (Data Collective)FootPrint CoalitionMission BiocapitalUnovis Asset Management+7 more

Alpine Bioalpbio.comin

Alpine Bio develops and commercializes functional proteins and bioactive ingredients for food, nutrition, and health applications, targeting formulators who need performance, supply reliability, and clean-label positioning.

AgTechBiotechFoodTechNew Materials

Co-investorsFifty YearsGermin8 VenturesPear VC

AM Batteriesam-batteries.comSeries B · Nov 2023 · $44M

AM Batteries develops Powder to Electrode dry coating technology for lithium-ion electrode manufacturing, reducing solvent use and energy consumption compared to traditional slurry methods.

Advanced ManufacturingCleantechEnergyMassachusetts, US

Yan Wang(Director)in

BoardAnil Achyuta(Director)inJimmy Kan(Director)inLisa Coca(Director)inLie Shi(Director)in

Co-investorsAnzu PartnersAsahi Kasei Corporate Venture CapitalCreative VenturesFoothill VenturesPorsche VenturesRA Capital+4 more

Apeiron Labsapeironlabs.comSeries A · Feb 2026 · $10M

Apeiron Labs develops autonomous underwater vehicles and ocean technology for marine applications.

Climate TechDeep TechIoTRoboticsCambridge, US

Ravi Pappu(CEO / Board Member)in

BoardSanjeev Krishnan(Director)Jonathan Rosen(Director)David Douglas(Director)Kyle Teamey(Director)inMark Abbott(Director)

Co-investorsBay Bridge Ventures ClimateCoalitionS2G InvestmentsTFX CapitalRA CapitalThe Engine Ventures

ArkeaBioarkeabio.cominSep 2025 · $7M

ArkeaBio develops a methane-reducing vaccine for cattle that lowers agricultural emissions without disrupting farm operations, targeting livestock producers to enable low-carbon dairy and beef production.

AgTechBiotechClimate Tech

Frank Wooten(Chief Executive Officer)inZach Serber(Chief Technology Officer)inColin South(Chief Business Officer)in

Co-investorsNYA VenturesRabo Corporate VenturingAgriZeroNZ

Avalanche Energyavalanchefusion.comin𝕏Feb 2026 · $29M

Avalanche Energy develops compact fusion technology to generate high-energy neutrons for materials testing, radioisotope production, and advanced nuclear battery systems serving defense, space, and commercial power applications.

Deep TechDefense TechEnergyRichland, US

Robin Langtry(Co-Founder, CEO)inBrian Riordan(Co-Founder, COO)in

BoardMatthew Nordan(Director)inKyle Teamey(Director)

Co-investorsCongruent VenturesFounders FundLowercarbon CapitalRA CapitalToyota VenturesAlumni Ventures+7 more

Baseload Capitalbaseloadcap.cominOct 2022

Baseload Capital invests in geothermal energy companies and projects, building a portfolio aimed at developing untapped geothermal resources to provide clean, baseload renewable electricity and heat.

CleantechClimate TechEnergyImpact & Social Good

Alexander Hellingin

Co-investorsChevron Technology VenturesGullspång InvestIngka Investments

Bloom Biorenewablesbloombiorenewables.comin𝕏

Bloom Biorenewables develops bio-based ingredients derived from non-food biomass, including a white lignin biopolymer, a bio-based solvent (DPX), and high-solids microfibrillated cellulose.

Circular EconomyCleantechNew Materials

Florent Héroguel(Founder)in

Co-investorsAnais VenturesBtomorrow VenturesThird DerivativeExtantia Capital

Blue Frontierbluefrontierac.comin𝕏Dec 2023

Blue Frontier manufactures energy-efficient, sustainable air conditioning systems (DOAS units) that reduce electricity consumption and eliminate high-GWP refrigerants.

Advanced ManufacturingCleantechClimate TechHardwareBoca Raton, US

Daniel Betts(Chief Executive Officer, co-founder)inMatthew Graham(Director and VP of Engineering)inGreg Tropsa(EVP Business Development)inMatthew Tilghman(Director and Chief Technology Officer)John Hingley(VP of Operations)in

BoardChristian Hernandez(Director)in

Co-investorsCarbonFlorida Opportunity FundTech Square VenturesThird DerivativeVoLo Earth Ventures

Breakthroughbreakthrough.healthJul 2026 · $43M

Breakthrough is a nutrition coaching business that helps individuals improve their long-term health and reach personal goals through personalized nutrition guidance and healthy habit building.

ConsumerDigital HealthWellness & Fitness

Sunny Dulay(Founder)inJill Thornton(Owner & Director of Nutrition)in

Co-investorsSanno Capital GmbHSocial Starts

Brimstonebrimstone.cominMay 2022 · $55M

Brimstone develops co-production processes to manufacture cement, steel, aluminum, and other critical minerals from a single feedstock in an integrated facility.

Advanced ManufacturingCircular EconomyCleantechConstruction TechNew MaterialsOakland, US

Cody Finke(Founder)inHugo Leandri(Founder)in

Co-investorsAccelr8Collaborative FundCreative Destruction Lab (CDL)DCVC (Data Collective)Fifth WallGVP Climate+7 more

C16 Biosciencesc16bio.comin𝕏Seed · Apr 2020 · $20M

C16 Biosciences uses a biomanufacturing platform to produce sustainable alternatives to oils and fats for consumer product supply chains, with its first product being an alternative to palm oil.

BiotechCleantechClimate TechConsumerHealthtechNew MaterialsNew York City, US

Shara Ticku(Co-Founder & Chief Executive Officer)inDavid Heller(Co-Founder & Chief Operating Officer)inHarry McNamara(Founder)in

BoardAndrew Shumaker(He resigned as a Director effective November 20, 2018.)

Co-investorsDCVC (Data Collective)Dorm RoomE12 Venture Capital, LlcEvolution VC PartnersG VenturesHelm+20 more

Carbon Cure Technologiescarboncure.comin𝕏

CarbonCure develops technologies that inject captured CO₂ into fresh concrete during mixing, where it mineralizes and permanently embeds in the material while reducing the amount of cement needed.

CleantechClimate TechNew MaterialsHalifax

Robert Niven(Founder)in

Co-investorsBlue Earth Capital AGCarbonForesight CanadaGreensoil PropTech VenturesPangaea Ventures Us Inc.Carbon Direct+1 more

Carbon Engineeringcarbonengineering.comin𝕏May 2021Acquired

Carbon Engineering is a Direct Air Capture (DAC) technology company, founded in 2009, that develops systems to capture large volumes of CO2 directly from the atmosphere.

CleantechClimate TechDeep TechSquamish, CA

David Keith(Founder)inDan Friedmann(CEO)in

Co-investorsDesigner FundETCapitalKhosla VenturesLowercarbon CapitalRusheen Capital PartnersWUTIF Capital+7 more

Commonwealthcommonwealth.imAug 2025 · $863M

Commonwealth (commonwealth.im) is a DAO coordination platform; the sources supplied contain no verifiable information about it.

Co-investorsCanaan PartnersCoinbase VenturesIOSG VenturesNascentFuture VenturesGalaxy Interactive+9 more

Commonwealthjoincommonwealth.xyzin𝕏Dec 2021 · $1.8B

Commonwealth (WLTH) is a platform that lets individuals invest in private companies starting at $20, with holdings backed 1:1 by verified equity and the ability to buy and sell without long lock-up periods.

FintechMarketplaces

Co-investorsBlack DragonParaFi CapitalParafi General FundCoatue ManagementEquinor VenturesFootPrint Coalition+11 more

Commonwealth Fusion Systemscfs.energyin𝕏Nov 2021 · $1.8B

Commonwealth Fusion Systems develops commercial fusion power plants using high-temperature superconducting magnet technology to provide grid-scale energy.

CleantechClimate TechDeep TechEnergyCambridge, US

Brandon Sorbom(Founder)inRobert Mumgaard(Executive Officer, Director)inDaniel Brunner(Executive Officer)inBob Mumgaard(Founder)inDan Brunner(Founder)Dennis Whyte(Founder)

PartnerCarmichael Roberts· quoted

Co-investorsAdvection Growth CapitalArmada Investment AGBay Bridge Ventures ClimateBeni Venture CapitalBrainstorm VenturesCoatue Management+47 more

Cowboy Space Corporationcowboyspace.cominApr 2026 · $275M

Cowboy Space builds a satellite constellation system that provides power and compute infrastructure in low Earth orbit to serve artificial intelligence applications.

AI & Machine LearningEnergySpace TechSan Carlos, US

Baiju Bhatt(Founder)in

BoardDaniel Gallagher(Director)

Co-investorsAndreessen HorowitzBlack FlagBlossom CapitalBrave CapitalConstruct CapitalDragon Capital+13 more

Dandelion Energydandelionenergy.comin𝕏Series B · Feb 2021 · $30M

Dandelion Energy designs and installs geothermal heating and cooling systems for homes, positioning geothermal as a primary heating and cooling solution for both new and existing residential buildings.

CleantechClimate TechEnergyHardwarePalo Alto, US

Kathy Hannun(Founder)inRajeev James Quazi(Executive Officer, Director)Dan Yates(CEO)inJames Quazi(Founder)

BoardCraig Shapiro(Director)in

Co-investorsBoxGroupCollaborative FundComcast VenturesCool Climate CollectiveEnergy Transition VenturesGround Up Ventures+4 more

Data Blanketdatablanket.cominDec 2022

Data Blanket builds a rugged, easy-to-operate system for deploying and running fleets of autonomous drones that use machine vision and AI to detect and identify threats and deliver real-time aerial situational awareness.

AI & Machine LearningDefense TechRoboticsBellevue, US

Gur Kimchi(Executive Officer, Director)inOmer Bar-Yohay(Executive Officer, Director)inYair Katz(Executive Officer, Director)Christian Garcia(Director)in

BoardDror Berman(Director)

Co-investorsIsrael Growth Partners

DMC Biotechnologiesdmcbio.comin𝕏Dec 2021

DMC Biotechnologies is a U.S.-based biomanufacturer that uses precision fermentation and its Dynamic Metabolic Control platform to produce bio-based specialty chemicals and ingredients, such as L-alanine and fermented inositols.

BiotechClimate TechNew MaterialsBoulder, US

Matthew Lipscomb(Director)Josh Yelen(Executive Officer)Jim Flatt(Executive Officer, Director)in

BoardJosko Bobanovic(Director)Rob van der Meij(Director)inAlastair Cooper(Director)

Co-investorsCIBUS ENTERPRISE FUND II LPSofinnova PartnersBoulder VenturesCapricorn Venture PartnersMichelin Ventures

Driventrustdriven.comAug 2026 · $310M

TrustDriven provides integrated software products for nonprofits and membership organizations, including fundraising, volunteer management, membership administration, and advocacy tools.

Enterprise SoftwareImpact & Social GoodSaaS

Co-investorsWaterloo Accelerator CentreAndreessen HorowitzBHP VenturesEarthshot VenturesEntourage VenturesGreenoaks+6 more

Electraelectra.earthinApr 2025

Electra develops a chemistry-based iron production process powered by clean energy to produce iron at scale without environmental damage.

Advanced ManufacturingCleantechNew Materials

Co-investorsBaruch Future VenturesCollaborative FundCongruent VenturesEarth Venture CapitalLowercarbon CapitalS2G Investments+6 more

Electraelectra.aeroin𝕏Apr 2025

Electra develops hybrid-electric aircraft for short-distance regional aviation.

CleantechDefense TechHardwareMobility & TransportationManassas, US

John Langford(Founder)in

BoardJohn Hansman(Key Technical Advisor)Mark Drela(Key Technical Advisor)Mark Drela, PhD(Technical Advisor)Yannick Bonnaire(Technical Advisor)Oliver Masefield, PhD(Engineering Advisor)

Co-investorsOUTPOST VENTURESBHP VenturesCapricorn Investment GroupClub degli InvestitoriCollaborative FundEarth Venture Capital+8 more

Energy Impact Partnersenergyimpactpartners.comin𝕏Aug 2026 · $750M

Energy Impact Partners is a global investment firm managing over $4.5 billion that invests across venture, growth, and credit strategies in technologies for the energy transition and decarbonization.

CleantechClimate TechEnergyNew York, US

Lindsay Luger(Co-founder & Partner)inHans Kobler(Founder and Managing Partner)inJoshua Feldman(Co-founder, Partner, General Counsel & Chief Operating Officer)inMichael Donnelly(Co-founder, Partner and Chief Risk Officer)inHarry Giovani(Managing Partner & CEO of Energy Impact Partners Credit)inKyle Wool(Partner & Chief Financial Officer)in

Co-investorsClean Energy VenturesDNV VenturesEvergy VenturesHumans Of The InternetJERAMOL Switch+11 more

Enverid Systemsenverid.com

enVerid develops Sorbent Ventilation Technology (SVT) and HVAC Load Reduction (HLR) systems that filter contaminants from indoor air, reducing the outside air ventilation needed and lowering the energy use, cost, and carbon emissions of building HVAC.

CleantechClimate TechEnergyHardwareWestwood, US

Udi Meirav(Executive Officer, Director)Christian Weeks(Executive Officer, Director)inIsrael Biran(Executive Officer, Director)Amnon Tamir(Executive Officer)Christopher Poirier(Director)Ron Stern(Director)

Co-investorsBuilding VenturesTeuza

Equilibrium Energyequilibriumenergy.comOct 2024

Equilibrium Energy applies software, AI/ML, and quantitative methods to modernize power and energy systems for power companies.

AI & Machine LearningClimate TechEnergySaaSBoston, US

Ryan Hanley(Executive Officer)inJonathan Mather(Founder)inKevin Clifford(Founder)inJeffrey Woods(Executive Officer)

Co-investorsAlumni VenturesCerity Partners VenturesDCVC (Data Collective)Japan Energy CapitalStrawberry Creek VenturesValo Ventures+1 more

ESS Inc.essinc.comin𝕏

ESS builds non-lithium battery energy storage systems — including sodium-ion and iron flow batteries — for utilities, data centers, commercial and industrial facilities, and critical infrastructure.

CleantechEnergyHardware

Craig Evans(Founder)inCraig Evans Julia Song(Founder)Drew Buckley(Chief Executive Officer)Kelly Goodman(Chief Strategy Officer and General Counsel)Kate Suhadolnik(Chief Financial Officer)Brian Lisiecki(Interim Chief Operating Officer and Chief Information Officer)

Co-investorsGC VenturesPangaea Ventures Us Inc.Portland Seed FundSand Hill AngelsCycle Capital

Fleetzerofleetzero.comin𝕏Seed · Jun 2022 · $43M

Fleetzero designs and retrofits commercial vessels with battery-electric propulsion systems to decarbonize ocean shipping.

Advanced ManufacturingCleantechClimate TechEnergyHardwareRoboticsHouston, US

Steven Henderson(Founder)inMike Carter(Founder)inSteven H(Founder)Steven Henderson Michael Carter(Founder)Thomas Smillie(Vice President Engineering)Maggie Belshe(Marketing)

Co-investorsObvious VenturesCantos VenturesDarco CapitalMaersk GrowthPioneerY Combinator+10 more

Form Energyformenergy.comin𝕏

Form Energy develops and manufactures low-cost, multi-day iron-air battery systems for long-duration energy storage on the electric grid, serving utilities and project developers primarily in the United States.

Advanced ManufacturingCleantechEnergyHardware

Mateo Jaramillo(Founder)inTed Wiley(Founder)inYet-Ming Chiang(Founder)inMarco Ferrara(Founder)inWilliam Woodford(Founder)in

Co-investors2045 VenturesBlindspot Ventures Management CoCarbonCoatue ManagementCongruent VenturesEnergy Impact Partners+13 more

Foundation Alloyfoundationalloy.comin𝕏Seed · May 2022 · $17M

Foundational Alloy develops engineering alloys through a solid-state process called MetalsFIRST, in which metal is produced without melting to create microstructures unreachable by conventional metallurgy while controlling oxygen and contaminants.

Advanced ManufacturingDeep TechNew Materials

Jasper Lienhard(Founder)Jake(Co-founder (company strategy, operations, financing, commercialization))Chris Schuh(Founder)Jake Guglin(Founder)Tim Rupert(Founder)

Co-investorsAlumni VenturesAmerica's Frontier FundBasecamp FundCastor VenturesEl Cap EquityMaterial Impact+6 more

Fourthfourth.comin

Fourth provides software solutions aimed at helping businesses save time, reduce costs, and increase profitability.

Enterprise SoftwareFoodTechRetail TechSaaSAustin, US

Scott Collison(Chief Executive Officer)inChristian Berthelsen(Chief Technology Officer; co-founder of FnBshop.com)inJohn Whitmarsh(Chief Financial Officer)inNipul Chokshi(Chief Marketing Officer)in

Co-investorsMarlin Equity PartnersKinetic Ventures, L.L.C.

Galygaly.coinJul 2020

GALY develops biocrafted alternatives to conventionally extracted materials like cocoa and cotton, positioning grown products as sustainable replacements for industries reliant on extractive supply chains.

AgTechBiotechCircular EconomyFoodTechNew MaterialsBoston, US

Luciano Bueno(Founder)inAmancio Ortega. Known for(Founder)Tim Draper(Founder)

BoardCarmichael Roberts(Director)inRyan Panchadsaram(Director)

Co-investorsAgronomicsArtesianBabel VenturesBrincMaterial ImpactMundi Ventures+19 more

Geo40geo40.cominFeb 2022

Geo40 produces natural colloidal silica extracted from geothermal fluids using its own process, offering low-carbon binder products for the refractory and precision investment casting industries.

Advanced ManufacturingCleantechClimate TechEnergyNew Materials

John Worth(CEO and Managing Director)in

Co-investorsPacific Channel

Geologic AIgeologicai.comin

GeologicAI provides multi-sensor core scanning data and machine learning analytics that help geoscientists in mining and mineral exploration produce consistent, auditable geological interpretations.

AI & Machine LearningData & InfrastructureDeep TechEnterprise SoftwareCalgary, CA

Grant Sanden(CEO)in

Co-investorsIcebook Investments Corp.Saltagen Ventures

Graphytegraphyte.comin𝕏Jul 2024

Graphyte develops Carbon Casting, a carbon dioxide removal method that dries and compresses biomass such as timber and crop residues into dense carbon blocks wrapped in an impermeable barrier and stores them in monitored underground sites.

Circular EconomyCleantechClimate TechDeep TechNew MaterialsMemphis, US

Barclay Rogers(Founder)in

BoardChris Rivest(Director)Matthew Eggers(Director)in

Co-investorsPrelude VenturesCarbonCarbon DirectOverture Climate

Guidewheelguidewheel.comin

Guidewheel builds a FactoryOps platform that helps factory teams reduce downtime, improve output, and optimize performance through a simple, scalable solution.

Advanced ManufacturingAI & Machine LearningEnterprise SoftwareIoT

Lauren Dunford(Founder)inWeston McBride(Founder)in

Co-investorsEnza CapitalGaingelsGreycroftJanuary VenturesLocalGlobeMana Ventures+8 more

H2Siteh2site.euin

H2 Site produces membrane reactor systems that combine hydrogen generation and separation in a single step, achieving high-purity hydrogen output for industrial applications.

CleantechDeep TechEnergyHardwareNew Materials

Andres Galnares(Founder)

Co-investorsCrane Venture PartnersENGIE New VenturesEquinor VenturesAmadeus Capital Partners

Harvest Roadharvestroad.cominJan 2023

Harvest Road Group is a Western Australian agricultural company with six generations of heritage that produces high-quality food products including beef and other agricultural goods for domestic and international markets.

AgTechFoodTechWestern Australia, AU

Co-investorsTattarang

Heirloom Carbonheirloomcarbon.comin𝕏Dec 2024

Heirloom operates Direct Air Capture (DAC) facilities that use limestone and carbon mineralization technology to permanently remove CO2 from the atmosphere at scale.

CleantechClimate TechDeep TechCalifornia, US

Shashank Samala(Founder)inNoah McQueen(Founder)

Co-investorsAENUAhren Innovation CapitalAutodesk FoundationBreyer CapitalCarbon Removal PartnersCollaborative Fund+13 more

Helix Nanotechnologieshelixnano.comin𝕏Series A

HelixNano develops an mRNA platform aimed at applications including cancer treatment, COVID-19 vaccines, and environmental interventions.

AI & Machine LearningBiotechClimate TechHealthtechBoston, US

Nikolai Eroshenko(CSO)inHannu Rajaniemi(CEO)in

Co-investorsAlumni VenturesBascom VenturesBeast VenturesChampion Hill VenturesDCVC (Data Collective)Fifty Years+16 more

Heron Powerheronpower.comin𝕏Feb 2026 · $140M

Heron Power develops power electronics and energy storage systems, leveraging expertise in software and manufacturing.

CleantechDeep TechEnergyHardwareCalifornia, US

Drew Baglino(Founder)in

Co-investorsAndreessen HorowitzCongruent VenturesEnergy Impact PartnersGigascale CapitalValor Equity PartnersCapricorn Investment Group

Higgsfield AIhiggsfield.aiin𝕏Apr 2024

Higgsfield is a platform for creating and generating visual content, including images, videos, and cinematic scenes using AI models.

AI & Machine LearningCreator EconomyMedia & EntertainmentLos Gatos, US

Alex Mashrabov(Founder)inYerzat Dulat(Founder)inMahi De Silva(Co-founder)inErzat Dulat(Founder)Mahi de Silva(Founder)

Co-investors1982 VenturesAccelAlpha Intelligence CapitalAlpha Square GroupAlumni VenturesAngel Collective Opportunity Fund+37 more

I-ROXi-rox.comin𝕏

I-ROX develops pulsed-power technology for mineral processing that reduces energy consumption and carbon emissions in mining operations.

AgTechCleantechClimate Tech

IMPACT Partnersimpact-partners.comin𝕏Aug 2026 · $750M

Impact Partners is an impact investing firm active since 2007, focused on supporting a more inclusive society.

Impact & Social Good

Jonathan Zaback(Founder)in

Co-investorsBetter HoldingCDP Venture CapitalAmazon Alexa FundBlindspot Ventures Management CoEnergy Impact PartnersFranklin Templeton+5 more

Inevitable Techinevitabletech.comin𝕏Series C · Sep 2021 · $53MDefunct

Iron Ox is redesigning agriculture using precision farming methods to reduce the environmental impact of food production and increase crop yields.

Advanced ManufacturingAgTechClimate TechFoodTechHardwareRoboticsSan Francisco, US

Brandon Alexander(CEO)inJonathan Binney(Robot Software Architect)inJamie Young(Senior Product Manager)Sarah Osentoski(Senior Vice President of Engineering)Will Sun(Senior Recruiter)

Co-investorsAmplify PartnersAt One VenturesATEL VenturesEniac VenturesInnovating CapitalPathbreaker Ventures+11 more

Inflection AIinflection.aiin𝕏Jun 2023 · $1.3B

Inflection builds AI models that combine emotional and raw intelligence to create trustworthy AI agents for individuals and enterprises.

AI & Machine LearningEnterprise SoftwarePalo Alto, US

Reid Hoffman(Founder)inMustafa Suleyman(Founder)inKarén Simonyan(Founder)inSean White(Chief Executive Officer)inVibhu Mittal(Chief Technology Officer)inTed Shelton(Chief Operating Officer)in

Co-investorsChamaeleonCoreWeaveEric SchmidtGeneral PartnershipGreylock PartnersHorizons Ventures+8 more

IonQ (IONQ)ionq.comin𝕏

IonQ builds trapped-ion quantum computing systems along with quantum networking, sensing, and security products, offering commercial systems accessible through major cloud providers and integration with common quantum libraries.

Deep TechHardwareQuantum ComputingCollege Park, US

Jungsang Kim(Founder)inChris Monroe(Founder)inChristopher Monroe(Founder)

BoardAndrew Schoen(Director)inDavid Moehring(Executive Officer, Director)inBlake Byers(Director)

Co-investorsNew Enterprise Associates (NEA)ACME CapitalBlueYard CapitalCambium CapitalCota CapitalGrit Ventures+7 more

Iron Oxironox.comSep 2021 · $53M

San Carlos, US

Jonathan Binney(Executive Officer, Director)Jon Binney(Founder)

BoardBrandon Alexander(Founder)inDhiraj Singh(Director)Eric Chin(Director)in

Co-investorsComet LabsCrosslink CapitalHemisphere Ventures LLCInnovating CapitalTuesday CapitalAt One Ventures+4 more

Kiwikiwi.todayMar 2026 · $4.3M

Marketplace platform for fabric producers and merchants

Co-investorsBig Basin CapitalAgriZeroNZAltered CapitalIcehouse VenturesInvest SouthPrelude Ventures+1 more

Kiwigokiwi.inin𝕏Mar 2026 · $4.3M

Kiwi is a fintech company offering a credit card product integrated with UPI payments, providing simple cashback rewards on everyday transactions.

ConsumerFintechNot stated, IN

Not stated(Co-Founder, COO & CFO)Anup Agrawal(Founder)Mohit Bedi(Founder)Siddharth Mehta(Founder)

Co-investorsStellaris Venture Advisors 2 LlpVertex Ventures Sea Management Pte. Ltd.AgriZeroNZAltered CapitalBig Basin CapitalCore91.vc+7 more

KoBold Metalskoboldmetals.comin𝕏

KoBold Metals applies AI and scientific computing to mineral exploration for critical minerals including copper, cobalt, lithium, and nickel needed for electrification and the clean energy economy.

AI & Machine LearningCleantechDeep TechHardwareNew MaterialsBerkeley, US

Kurt House(Founder)inJeff Jurinak to help(Founder)

BoardJosh Goldman(Founder)inJohn Thompson(Director)Connie Chan(Director)inKarl White(Director)in

Co-investorsAndreessen HorowitzBaruch Future VenturesBond Capital ManagementCleo CapitalClimate CapitalCongruent Ventures+7 more

Kodama Systemskodama.aiinDec 2022 · $6.6M

Kodama builds remote-control and AI systems for logging equipment, including its RS1 system that converts skidders into remotely operated "robo-skidders." It serves loggers and forest management operations looking to increase production without adding operators or machines.

AgTechAI & Machine LearningRoboticsAndover, US

Merritt Jenkins(Executive Officer, Director)inAndrew Stubbs(Executive Officer)

BoardMatthew Verminski(Director)

Co-investorsAlumni VenturesBreakwater VenturesCongruent VenturesDangerous VenturesMission One CapitalNYA Ventures+2 more

Kolomakoloma.cominOct 2024 · $50M

Koloma explores and produces natural hydrogen to support global decarbonization efforts.

CleantechClimate TechDeep TechEnergyDenver, US

Jeff Knupp(Executive Officer)inBunmi Adekore(Executive Officer, Director)Paul Harraka(Executive Officer)inPeter Johnson(Executive Officer, Director)Pete Johnson(CEO & Founder)inTom Darrah, PhD(CTO & Founder)

Co-investorsCongruent VenturesEnergy Impact PartnersEvok InnovationsK5 GlobalMaterial ImpactMOL Switch+7 more

Lilacgetlilac.comin𝕏Sep 2021

Lilac provides GPU compute infrastructure for startups, offering dedicated GPU VMs, bare-metal nodes, and private clusters with flexible capacity management options.

AI & Machine LearningCloud ComputingEnterprise SoftwareSan Francisco, US

Ryan Ewing(Founder)inLucas Ewing(CEO)in

Co-investorsAventurine PartnersDG Daiwa VenturesLowercarbon CapitalY Combinator468 CapitalAgrolimen Ventures+10 more

Lucy TherapeuticsinMay 2024 · $13M

BiotechCambridge, US

Amy Ripka(Executive Officer, Director)inAnn DeWitt(Director)John Ripple(Director)

Co-investorsSafar Partners

Luxwallluxwall.comin𝕏Seed · Sep 2021 · $6M

LuxWall manufactures transparent insulation products for buildings that enhance daylighting, regulate indoor temperatures, and reduce noise.

Advanced ManufacturingCleantechConstruction TechEnergyPropTechYpsilanti, US

Scott V. Thomsen(Executive Officer, Director)inDominic Casinelli(Executive Officer)inJay Rothenberg(Executive Officer)Jose Nunez-Regueiro(Executive Officer)in

BoardSteven Poulter(Director)Cindi Bough(Director)in

Co-investorsATEL VenturesBaruch Future VenturesCarbonClimate InvestmentCongruent VenturesPrelude Ventures+1 more

Lydianlydianlabs.cominSeries A · Jan 2026 · $44M

Lydian develops and supplies technology for producing sustainable aviation fuel (SAF) from CO₂, enabling aircraft fuel producers and facilities operators to manufacture drop-in jet fuel at lower capital and operating costs than conventional methods.

CleantechClimate TechDeep TechEnergyCharlestown, US

Joe Rodden(Founder)inBranko Zugic(Executive Officer, Director)

BoardJoshua Posamentier(Director)in

Co-investorsCongruent VenturesOverlap HoldingsUnion Square Ventures (USV)Galvanize Climate SolutionsGlobal Founders CapitalGrok Ventures+2 more

Mainspring Energymainspringenergy.cominSeries C · Jan 2018 · $83M

Mainspring Energy develops power generation systems.

Deep TechEnergyHardware

Shannon Miller(Founder)inAdam Simpson(Founder)Matt Svrcek(Founder)

BoardTom Linebarger(Chairman & Chief Executive Officer)

Co-investorsKhosla VenturesAlumni VenturesClearSkyDCVC (Data Collective)Fine Structures VenturesGeneral Catalyst+5 more

Malta Incmaltainc.comin

Malta Inc. develops a steam-based ultra-high temperature heat pump that delivers 300–550°C process heat for industrial decarbonization and serves as the core technology for its utility-scale long-duration energy storage system.

CleantechClimate TechEnergyCambridge, US

Phil Delleville(Executive Officer, Director)inRamya Swaminathan(Executive Officer, Director)inJeannine Sargent(Director)inAlex Syed(Director)Steve Hirsh(Director)in

BoardJesus Santos Egea(Director)

Co-investorsPiva CapitalPETRONAS Ventures

Mariana Mineralsmarianaminerals.cominAug 2026 · $310M

Mariana Minerals is a vertically integrated minerals supplier that uses software to source critical minerals for energy, AI, and defense technologies.

AI & Machine LearningEnergyNew MaterialsSan Francisco, US

Turner Caldwell(CEO)inJuan Lozano Van De Ven(Executive Officer, Director, Promoter)Schuyler (Baker) Tilney(Executive Officer, Director, Promoter)Baker Tilney(Founder)Juan Lozano(Founder)

BoardErin Price-Wright(Director)in

Co-investorsAndreessen HorowitzEarthshot VenturesGreycroftIn-Q-TelInception Studio CapitalKhosla Ventures+7 more

MAXmax.ngin𝕏

MAX is a mobility fintech platform that provides financial services, vehicle ownership solutions, and support services to informal transport operators across Africa.

B2B MarketplacesCleantechClimate TechFintechLogistics & Supply ChainMobility & TransportationLagos, NG

Adetayo Bamiduro(Founder)Chinedu Azodoh(Founder)

Co-investorsAlitheia CapitalCapria VenturesGoodwell InvestmentsOlive Tree CapitalShell FoundationWaarde Capital+3 more

Millmill.cominFeb 2023

Mill makes an electric food waste recycler for homes that reduces food scraps by 80% and converts them into nutrient-rich grounds for gardens or farms.

Climate TechConsumerHardwareSan Bruno, US

Harry Tannenbaum(Founder)inMatthew Rogers(Founder)inHarry Tannebaum(Founder)Matt Rogers(Founder)

Co-investorsBuckhill CapitalCleo CapitalEnergy Impact PartnersGigascale CapitalGV (Google Ventures)HAWKTAIL+9 more

Molten Industriesmoltenindustries.comin𝕏

Molten Industries develops chemical reactor technology that splits natural gas into hydrogen and graphite using electrical resistive heating for battery anode production and industrial hydrogen supply.

Advanced ManufacturingCleantechEnergyNew MaterialsWest Oakland, US

KevininCaleb Boyd(Founder)inKevin Bush(Founder)

Co-investorsATEL VenturesFifty YearsJ4 VenturesMoai CapitalSozo VenturesUnion Square Ventures (USV)+1 more

Natel Energynatelenergy.cominMar 2020 · $11M

Natel Energy develops FishSafe turbine runners for hydropower plants, available in Francis, Kaplan, and propeller configurations that retrofit into existing civil works to improve efficiency while enabling high through-turbine fish passage survival.

Advanced ManufacturingCleantechEnergyHardwareAlameda, US

Gia Schneider(Chief Commercial Officer, co-founder)inAbraham Schneider(Director)Abe Schneider(Chief Technology Officer, co-founder)in

BoardMichael Mars(Director)Ray Naizer(Director)

Co-investorsJapan Energy CapitalSE Ventures

Nature's Fyndnaturesfynd.com

The Fynder Group develops a biotechnology platform using extremophile fungi to produce specialty ingredients, biopharmaceutical drugs, and bio-based materials for food, beverage, pharmaceutical, and textile applications.

BiotechFoodTechNew MaterialsChicago, US

Matthew Strongin(Founder)inMark Kozubal(Founder)Thomas Jonas(Founder)

Co-investors1955 CapitalDanone Manifesto VentureLauder PartnersSoftBank Vision FundGeneration Investment Management

Neutral Foodseatneutral.comAug 2022

Neutral produces dairy products with measured and offset carbon footprints.

AgTechClimate TechFoodTechPortland, US

Matt Plitch(Founder)Lawrence Plitch(Executive Officer)

Co-investorsCollaborative FundDarco CapitalGlobal BrainKirin HoldingsMark Cuban CompaniesShorewind Capital

New Carbonnewcarbon.caMar 2022 · $53M

New Carbon Inc. (dba Darwin Carbon) is an advanced materials manufacturer producing carbon microfiber products—sheets, tapes, wires, and yarns—that combine structural, electrical, and thermal performance to replace metals, plastics, and concrete.

Deep TechDefense TechNew Materials

Michael Gurau(Co-founder & CEO)inDavid Gailus(Co-founder & CTO)

Co-investorsDeep Futurea16z cryptoAhren Innovation CapitalBreyer CapitalCarbonCarbon Removal Partners+7 more

Our Next Energy Inc. (ONE)one.aiin𝕏

A company working on energy storage solutions.

Advanced ManufacturingCleantechClimate TechEnergyNovi, US

Mujeeb Ijaz(Founder)inDr. Deeana Ijaz(Chief Strategy Officer)Nathan Saliga(Chief Technical Officer)inCarl Sickles(Chief Operating Officer)inErik Strang(Chief Financial Officer)

Co-investorsAlpha Intelligence CapitalAssembly VenturesBaruch Future VenturesBMW i VenturesCoatue ManagementDetroit Venture Partners+1 more

Papaya Paymentspapayapay.comin𝕏Jul 2026

Papaya provides a platform to help Americans track and pay bills online, aiming to reduce financial anxiety and simplify bill payment management.

ConsumerFintechSaaSLos Angeles, US

Patrick Kann(Founder)inJason Meltzer(Founder)inHaakon Brekke(Founder)Julian Timings(Founder)Kush Sodhia(Founder)Renato Serra(Founder)

Co-investorsAcrew CapitalActivant CapitalBessemer Venture PartnersClocktower VenturesF-Prime CapitalFika+19 more

Pivot Biopivotbio.comin𝕏Sep 2018

Pivot Bio develops agricultural innovations focused on transforming farming practices through microbiology and genetics.

AgTechBiotechEmeryville, US

Alvin Tamsir(Founder)inKarsten Temme(Founder)inAlvin Tamsir, Ph.D.(Chief Science Officer & Co-Founder)Karsten Temme, Ph.D.(Chief Innovation Officer and Co-Founder)Chris Abbott(Chief Executive Officer)in

BoardRoger Wyse(Director)in

Co-investorsCongruent VenturesDCVC (Data Collective)G2 Venture PartnersHercules Capital, Inc.K3 VenturesK3V Ventures+12 more

Planetaryplanetary.orgin𝕏Sep 2026 · $31.8M

The Planetary Society is a member-funded nonprofit that advances space science and exploration through space advocacy, education, and research, including efforts on Solar System discovery, the search for life beyond Earth, and asteroid impact defense.

Impact & Social GoodSpace Tech

Carl Sagan(Co-founder)Bill Nye(Chief Ambassador)in

Co-investorsBeyond Earth VenturesAstanor VenturesGigascale CapitalGreen Generation FundKhosla VenturesPiva Capital+1 more

Planted Solarplantedsolar.comin

Planted Solar operates a vertically integrated solar platform that links site origination, design, permitting, construction, and operations, using high-density terrain-following arrays and precision field machines to reduce land use and speed deployment.

CleantechClimate TechConstruction TechEnergyOakland, US

Richard Erb(Founder)in

Co-investorsPiva CapitalRA CapitalTeam Builder VenturesKhosla VenturesPETRONAS Ventures

PSIpsiexams.comin𝕏Sep 2026 · $58M

PSI provides testing and assessment services, including exam delivery, statistical analysis of testing data, and security measures such as audits, inspections, and monitoring to detect fraud and vulnerabilities across the assessment lifecycle.

EdTechEnterprise SoftwareGovTechSaaS

Co-investorsETS Strategic CapitalRobot VenturesSolari CapitalSusa VenturesSV AngelValkyrie

QuantumScapequantumscape.comin𝕏

QuantumScape develops solid-state lithium-metal batteries with ceramic electrolyte separators for electric vehicles, enabling faster charging, longer range, and improved safety compared to conventional lithium-ion batteries.

EnergyHardwareNew MaterialsSan Jose, US

Dr. Tim Holme(Co-founder & Chief Technology Officer)Jagdeep Singh(Founder)inSiva Sivaram(President & CEO)inFriedrich Prinz(Founder)Fritz Prinz(Founder)Tim Holme(Founder)

Co-investorsFoothill VenturesKhosla VenturesKleiner PerkinsLightspeed Venture PartnersPrelude VenturesSAIC Technologies Fund II, LLC

Reaskreask.earthin𝕏Jun 2023

Reask develops climate risk models for insurers and reinsurers to forecast, price, and manage extreme weather exposure.

Climate TechData & InfrastructureInsurTechLondon, GB

Co-investorsCollaborative FundHAWKTAILMastryMosaic General Partnership, LLCComcast VenturesMacdoch Ventures+4 more

Releaf Earthreleaf.africain𝕏Seed

Releaf Earth is a climate tech company that converts food waste, specifically palm kernel shells, into biochar for carbon removal and agricultural use.

Advanced ManufacturingAgTechCircular EconomyCleantechClimate TechImpact & Social GoodLagos, NG

Kenna Nzewi(CEO)inUzoma Ayogu(CTO)inIkenna Nzewi(Founder)Isaiah UdotongAda Umendubuisi(Recruiter)Kingsley Neequaye(Chief of Staff)

Co-investorsY CombinatorDuke Capital PartnersFINCA VenturesFlori VenturesFuture AfricaMetis Capital

Rizerize.farmin

Rize builds an end-to-end platform for rice farmers in Southeast Asia, combining financing, AI-driven agronomy, and market access to scale sustainable practices such as alternate wetting and drying, reduced pesticide use, crop residue management, and site-specific nutrient management.

AgTechAI & Machine LearningCleantechClimate TechImpact & Social Good

Dhruv Sawhney(CEO)in

Co-investorsAlpha EdisonWavemaker ImpactBNP Paribas Asset Management EuropeMorpheus VenturesTemasek

Rumin8rumin8.cominSeed · Jan 2023 · $12M

Rumin8 develops feed supplements for ruminant livestock that reduce methane emissions by applying anti-methanogenic solutions derived from nature.

AgTechClimate TechImpact & Social GoodWestern Australia, AU

David Messina(Co-founder & CEO)inDr Stewart Washer(Co-founder & Chairman)inMatt Callahan(Co-founder and Head of Regulatory)in

Co-investorsPrelude VenturesStarshot

Savorsavor.itinSeed · Jan 2024 · $10M

Savor produces sustainable fats and oils from non-animal sources for food manufacturing and consumer use.

Circular EconomyCleantechFoodTech

Kathleen C. Alexander(Founder)in

Co-investorsSynthesis Capital

Sortera Alloyssorteratechnologies.comin𝕏Series C · Aug 2023 · $59M

Sortera produces sorted aluminum scrap materials from recycling streams using artificial intelligence, offering certified aluminum fractions (cast, extrusion, and sheet products) as sustainable feedstock for metal manufacturers and die-casters.

Advanced ManufacturingAI & Machine LearningCircular EconomyNew Materials

Nalin Kumar(Founder)in

Co-investorsAssembly VenturesChrysalixYamaha Motor Ventures

SOURCE Globalsource.coin

Hydropanels technology producing clean drinking water using only sunlight and air for global water access.

Scottsdale, US

CODY FRIESEN(Executive Officer, Director)inChristopher Mirick(Executive Officer)inAl-Hussein Dahya(Executive Officer)

BoardErik Snyder(Director)Carmichael Roberts(Director)inJim Matheson(Director)in

Co-investorsBaruch Future VenturesCool Climate CollectiveMaterial ImpactR/GA VenturesThe Lightsmith GroupWIND Ventures

Still Brightstillbright.coin

Still Bright develops hydrometallurgical copper extraction technology that replaces traditional smelting, aiming to recover copper and other critical metals more efficiently and with less pollution.

CleantechClimate TechNew MaterialsNew Jersey, US

Randy Allen(Founder)inJon Vardner(Founder)inScott Banta(Founder)Alan West(Chief Science Officer, Co-founder)

Co-investorsAzolla VenturesCollaborative FundMaterial ImpactSOSVThird Derivative

Sygaldry Technologiessygaldry.comin𝕏Series A · Mar 2026 · $110M

Sygaldry develops quantum-accelerated AI servers that combine multiple qubit modalities to speed up training and inference for AI models.

Advanced ManufacturingAI & Machine LearningHardwareQuantum ComputingAnn Arbor, US

Chad Rigetti(CEO)inIdalia Friedson(Founder)inMeghan Hudson(Head of HR)

BoardChristian Garcia(Director)inAndrew Sather(Director)inMichael Keiser(Founder)in

Co-investorsAlumni VenturesBloomberg BetaCollaborative FundDetroit Venture PartnersEarth Venture CapitalEight Capital+51 more

Terabase Energyterabase.energyin𝕏

Terabase Energy provides technology and services for utility-scale solar projects, including development, construction, and plant controls, with a portfolio spanning hundreds of large-scale solar plants worldwide.

CleantechClimate TechConstruction TechEnergyBerkeley, US

Matt Campbell(Founder)

Co-investorsATEL VenturesCity LightEDP VenturesPrelude VenturesSJF VenturesSoftBank Group+2 more

Terra CO2 Technologies Incterraco2.comin

TerraCO2 operates in the climate/cleantech sector, though specific details about the company's core business model are not provided on this page.

CleantechClimate TechConstruction TechCleburne, US

Bill Yearsley(Founder)

Co-investorsAll AboardCreative VenturesInnovative Solutions Canada

Terraform Industriesterraformindustries.com𝕏Nov 2024 · $80M

Terraform Industries develops machines for gigascale atmospheric hydrocarbon synthesis, aiming to produce hydrocarbons from air to displace fossil fuel production.

CleantechClimate TechEnergyBurbank, US

CASEY HANDMER(Executive Officer, Director, Promoter)inCasey Handmer(Founder)in

Co-investorsClimate CapitalHyperguapMana VenturesMyelin VCRolling Fun GPCocoa+3 more

TS Conductortsconductor.comin𝕏Nov 2021

TS Conductor makes AECC (Aluminum Encapsulated Carbon Core), an advanced overhead transmission conductor that increases line capacity while reducing structural upgrades and capital expenditure for electric utilities.

CleantechEnergyNew MaterialsHuntington Beach, US

Jason Huang(Director, Executive Officer)inChris Martin(Executive Officer)inRulong Chen(Director, Executive Officer)Lian de Castro(Executive Officer)

BoardBrian Mayers(Director)inMichael DeLucia(Director)in

Co-investorsEnergy & Environment InvestmentNational Grid PartnersThird DerivativeWellington Management

Verdoxverdox.cominFeb 2022 · $80M

Verdox develops an electrochemical carbon capture system that uses electrical energy alone to capture and release CO₂ from both industrial point sources and ambient air.

CleantechClimate TechDeep Tech

Alan Hatton(Founder)Brian Baynes(Founder)Sahag Voskian(Founder)

Co-investorsAzolla VenturesLowercarbon CapitalOUP (Osage University Partners)Prime Impact Fund

Watershedwatershed.cominFeb 2021

Watershed builds a sustainability AI platform that combines climate science and emissions data with AI to help companies measure, report, and reduce their environmental impact.

AI & Machine LearningClimate TechEnterprise SoftwareSaaSSan Francisco, US

Taylor Francis(Founder)inAvi Itskovich(Founder)inChristian Anderson(Founder)in

BoardJohn Doerr(Director)inPatrick Grady(Director)

Co-investorsKleiner PerkinsSequoia CapitalGreenoaksAglae VenturesDesigner FundEnergize Capital+15 more

WeaveGridweavegrid.comin𝕏Series B · Nov 2022 · $35M

WeaveGrid provides software and grid management solutions that help utilities integrate electric vehicle charging and distributed energy resources without expanding infrastructure.

Climate TechEnergyIoTSaaSSan Francisco, US

Apoorv Bhargava(CEO and Cofounder)inJohn Taggart(President and Cofounder)in

Co-investorsACTIVATE CAPITAL PARTNERSClimacticCoatue ManagementCollaborative FundCongruent VenturesHead & Heart Capital+5 more

Windfall Biowindfall.bioin𝕏

Windfall Bio develops microbial-based solutions that convert methane into valuable products for industrial and agricultural customers.

AgTechBiotechClimate TechDeep TechSan Francisco, US

Louis Stenmark(Founder)inCarla Risso(Founder)Jordan Smith(Founder)Josh Silverman(Founder)Judy Su(Founder)

Co-investorsBaruch Future VenturesCavallo VenturesGlobal BrainMayfield FundSOSVUlu Ventures+1 more

Xcimer Energyxcimer.energyinOct 2022

Xcimer Energy develops laser-driven inertial fusion technology, aiming to turn decades of fusion research into commercial fusion power plants that provide large-scale electricity while supporting air defense and national security applications.

CleantechDeep TechEnergyDenver, US

Conner Galloway(Founder)inAlexander Valys(Founder)inBrent Gill(Chief Operating Officer)inGary Sobolevskiy(General Counsel)in

Co-investorsGigascale CapitalLeitmotifLowercarbon CapitalPrelude VenturesRTX VenturesWireframe Ventures+1 more

Yardstickuseyardstick.comin𝕏Aug 2023

Yardstick develops soil carbon measurement technologies to reduce the cost of measuring soil organic carbon and enable evidence-based climate-positive agriculture practices.

AgTechCleantechClimate TechData & InfrastructureDover, US

Christopher Tolles(Executive Officer, Director)Kevin Meissner(Founder)Chris Tolles(Founder)Evan Arnold(Founder)

BoardLisa Coca(Director)in

Co-investorsCultivian Sandbox VenturesLowercarbon CapitalPetriPillar VCWorkshop Venture PartnersExtantia Capital+1 more

Zap Energyzapenergy.comin𝕏

Zap Energy develops advanced nuclear systems built on a shared platform that combines fission and fusion technologies to deliver firm, carbon-free electricity and process heat in modular, deployable formats.

CleantechDeep TechEnergyEverett, US

Benjamin Conway(Executive Officer, Director)Uri Shumlak(Founder)inBrian Nelson(Distinguished Technology Fellow & Cofounder)inBenj Conway(Founder)inZabrina Johal(CEO)inBrian A. Nelson(Founder)

Co-investorsDCVC (Data Collective)Energy Impact PartnersFourth RealmLeitmotifLowercarbon CapitalValor Equity Partners+2 more

ZeroAvia x-tech-roboticszeroavia.comin𝕏Series A · Dec 2020 · $21M

ZeroAvia develops hydrogen-electric powertrain technology for aircraft, aiming to enable zero-emission aviation.

CleantechClimate TechDeep TechMobility & TransportationHollister, US

Valery Miftakhov(Executive Officer, Director, Promoter)Sergey Kiselev(Director)inJames McMicking(Chief Strategy Officer)in

BoardGeoff Eisenberg(Director)inMatt Eggers(Director)inChristine Ourmieres-Widener(Director)

Co-investorsAENUAloniqAlumni VenturesAP VenturesDniproEcosystem Integrity Fund+13 more

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

Baseload RenewablesElectrasteel, Inc.Heron Power Electronics CoValanbio TherapeuticsArkea BioBia EnergyBuilding CompaniesEcocemElectricity CompaniesHeinekenManufacturing CompaniesMotif FoodWorksMTN NigeriaPhysical SuperintelligenceRemo EnergyStratusmaterialsSustainable BioproductsTransportation Companies

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.