Fundraising Fox

Azolla VenturesFull Portfolio

52 tracked investments · listed companies and verified rows first

Fungafunga.earthinDec 2024✓ verified

Funga restores forest soil microbiomes by reintroducing native, growth-promoting fungal communities to degraded land, aiming to speed forest growth and increase carbon captured in wood biomass.

AgTechBiotechClimate TechAustin, US

Colin Averill(Founder & CEO)Dr. Colin Averill(Founder, CEO)Erika Randolph(Chief Operating Officer)Josh Parrish(Chief Growth Officer)

Board seatMatthew Nordan· per SEC Form D

Co-investorsBetter VenturesTrailhead CapitalBetter Ventures Central LlcCollaborative Fund

Calcarea HRcalcarea.comin✓ verified

Calcarea develops nature-based solutions to decarbonize the economy, focusing on carbon capture and removal technologies.

CleantechClimate TechDeep TechPasadena, US

Andy StevensonJess AdkinsPierre ForinWill Berelson

Co-investorsGrantham FoundationPropeller VC

Oxylus Energyoxylusenergy.comin✓ verified

Oxylus Energy develops electrolyzers that convert captured CO2 into low-carbon methanol using renewable power, which can be further upgraded into sustainable aviation fuels.

CleantechClimate TechEnergyNew Haven, US

Perry Bakas(Chief Executive Officer | Co-Founder)Harrison Meyer(Cofounder)Conor Rooney(Chief Technology Officer | Co-Founder)in

Co-investorsConnecticut InnovationsEarth FoundryToyota VenturesEnergy Foundry

Aikido TechnologiesJun 2024

Platform for floating offshore wind turbines to transform wind energy economics

San Francisco, US

Board seatMatthew Nordan· per SEC Form D

Avalanche Energy DesignsJan 2026SEC filingmedium confidence

EnergyTukwila, US

Robin Langtry(Executive Officer, Director)Brian Riordan(Executive Officer, Director)

BoardKyle Teamey(Director)

Board seatMatthew Nordan· per SEC Form D · $29.2M raise · filed Jan 2026

Carbon Reformcarbonreform.comFeb 2025 · $3M

Philadelphia, US

Joanne Norris(Executive Officer, Director)Nick Martin(Executive Officer, Director)Jo Norris(Cofounder)

Board seatAmy Duffuor· per SEC Form D

Co-investorsThe Innovation SpaceGaingelsPlug and Play VenturesRise of the Rest Seed

clean-cropcleancroptech.comMay 2024

Clean Crop develops plasma-based seed treatment technology and hardware systems for treating seeds and food surfaces in the agriculture sector.

AgTechCleantechFoodTechHardwareHolyoke, US

Daniel White(Executive Officer, Director)Daniel Cavanaugh(Co-founder)

BoardTom Boddez(Director)Justin Frankert(Director)Pete Oberle(Director)

Board seatAmy Duffuor· per SEC Form D

Co-investorsBread And Butter Ventures, LlcClimate Impact CapitalInnova Memphis, Inc.Prime Impact FundR/GA VenturesRed Beard Ventures+2 more

MicroByremicrobyre.comJan 2022SEC filingmedium confidence

BiotechSan Francisco, US

Sarah Richardson(Executive Officer, Director)Rik Wehbring(Director)Jeffrey Anderson(Executive Officer, Director)

Board seatMatthew Nordan· per SEC Form D · $15.7M raise · filed Jan 2022

Co-investorsISVPrime Impact Fund

noon-energynoon.energyJan 2021

Noon Energy develops ultra-long-duration battery storage using a reversible solid oxide fuel cell and carbon-based storage media to deliver 100+ hours of clean, firm power.

CleantechClimate TechDeep TechEnergyPalo Alto, US

Christopher Ronald Graves(Executive Officer, Director, Promoter)Mary Kalee Whitehouse(Executive Officer, Promoter)Chris Graves(Co-founder)Kalee Whitehouse(Co-founder)Richard M. Swanson(Director)

Board seatAmy Duffuor· per SEC Form D

Co-investorsAt One VenturesClean Energy VenturesPrime Impact FundTechEnergy VenturesXplorer CapitalAramco Ventures

ScalvyJul 2023

Modularizes electric vehicle drivetrains to enable higher-performance, lower-cost EVs

Sunnyvale, US

Board seatMatthew Nordan· per SEC Form D

Sense LabsMay 2022SEC filingmedium confidence

Cambridge, US

Christopher M. Micali(Executive Officer)Michael Phillips(Executive Officer, Director)

BoardIzhar Armony(Director)inGabriel Kra(Director)in

Board seatMatthew Nordan· per SEC Form D · $105.9M raise · filed May 2022

Co-investorsCRV (Charles River Ventures)Energy Impact PartnersPrelude VenturesTechnology Impact

Sightline ClimateAug 2024SEC filingmedium confidence

Scarsdale, US

Kimberly Zou(Executive Officer, Director)Sophie Purdom(Director)

BoardJason Kalira(Director)George Chalmers(Director)Mark Taylor(Director)

Board seatMatthew Nordan· per SEC Form D · $7.2M raise · filed Aug 2024

Co-investorsAccelr8

SiTrationsitration.cominJul 2025

SiTration develops silicon-based electro-extraction (SEE) and nano-filtration (SNF) technologies that recover metals and critical minerals from mining waste, leachate, and recycled material using electricity and no added chemicals.

CleantechDeep TechNew MaterialsCambridge, US

Brendan Smith(Executive Officer, Director)Jeffrey Grossman(Director)

BoardJacob Bro(Director)in

Board seatMatthew Nordan· per SEC Form D

Co-investorsCarbonThe E14 FundWorking Capital FundBHP VenturesExtantia CapitalOrion Industrial Ventures

Aikido transparent v3aikidotechnologies.comin

Aikido Technologies develops technologies for clean energy and intelligence infrastructure to support a sustainable future.

AI & Machine LearningCleantechData & InfrastructureEnergy

Co-investorsPropeller VC

Avalanche Energyavalanchefusion.comin𝕏

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

Co-investorsCongruent VenturesFounders FundLowercarbon CapitalRA CapitalToyota VenturesJuniper+2 more

Avalanche Energy

Designs and builds fusion power systems that fit on a desktop

BioLumic, Inc.biolumic.com

Uses UV light signals to boost seed and seedling genetic potential; domiciled in the USA.

Palmerston North

Jason Wargent(Executive Officer)Steven Sibulkin(Executive Officer, Director)Mark Brown(Director)Mary Dimou(Director)John Bedbrook(Director)Kirsty Bellringer(Director)

Co-investorsAngel HQArc AngelsBooster Innovation FundIcehouse VenturesiSelect FundNelson Angels+2 more

C-Motive Technologies

Reinvents electric motor design for high torque at low speeds enabling efficient wind turbines

Advanced ManufacturingMadison, US

DANIEL COLIN LUDOIS(Executive Officer)KATHERINE GERAMITA(Executive Officer)Barbara Ziemer(Executive Officer)

BoardMATTHEW MAROON(Executive Officer, Director)Justin K. Reed(Executive Officer, Director)JOHANNA WOLFSON(Director)in

Co-investorsPrime Impact Fund

CalcareainJan 2023

Decarbonizing shipping with carbon capture technology on ocean vessels

Altadena, US

Jess Adkins(Executive Officer, Director)

Charm Industrialcharmindustrial.comin𝕏

Charm Industrial converts agricultural residues into bio-oil and injects it underground to remove carbon from the atmosphere at scale.

AgTechCleantechClimate Tech

Shaun Meehan(Chief Scientist and co-founder)

Co-investorsBreyer CapitalCongruent VenturesKinnevikLIONHEART VENTURESPrime Impact FundSystemiq Capital+8 more

CMotive Technologiesc-motive.comin

C-Motive designs electric motors and machines for renewable energy generation, electric mobility, and industrial applications, with a focus on reducing carbon emissions through improved efficiency.

Advanced ManufacturingCleantechEnergyHardwareMadison, US

Co-investorsClean Energy VentureEvergreen Climate InnovationsPrime Impact FundStarlight Ventures

Digdig.securitySep 2025 · $5M

Acquired by Palo Alto Networks

Dan Benjamin(Founder)in

Co-investorsSelah VenturesSignalFireAvilaBaukunstKoa LabsSuffolk Technologies

Dig Energydig.energyin

Dig Energy develops technology to lower the cost of drilling for distributed geothermal energy, aiming to make geothermal heating and cooling cost-competitive for buildings.

CleantechClimate TechEnergy

Dulcie Madden(Co-Founder & CEO)Thomas Lipoma(Co-Founder & CTO)Dan Jepeal(VP Engineering)

Co-investorsAvilaBaukunstSunna Ventures

EQON

Reduces energy consumption and greenhouse gas emissions in industrial and commercial electrical heating

Erg Bioergbio.com

Erg Bio converts waste biomass into fermentable sugars and intermediates for synthetic aviation fuels and chemicals, using an advanced solvent process and a proprietary yeast that produces enzymes and ferments sugars.

BiotechCleantechEnergyDublin, US

Vineet Rajgarhia(Co-founder)inBlake Simmons(Co-founder)inMichael Rabson(Co-founder)in

Co-investorsFREEFLOWJuniperLichen VenturesChevron Technology Ventures

FAST Metalsfastmetalsinc.comin

FAST Metals recovers critical minerals — iron, alumina, titania, and rare earths — from industrial waste streams such as red mud, bauxite residue, and tailings using a low-temperature hydrometallurgical process that removes iron first, deployed via mobile modular skids at refinery sites.

Circular EconomyCleantechNew Materials

Sumedh Gostu(CEO & Co-Founder)inAnthony Staley(Executive Advisor & Co-Founder)in

Co-investorsConnecticut InnovationsNew Climate Ventures

Gradient

Creates quiet and efficient HVAC systems that are low-profile and easy to install

Gradientgradientcomfort.comin𝕏

Gradient manufactures a window-mounted 120V heat pump for residential heating and cooling that installs without drilling or refrigerant handling.

CleantechClimate TechHardwarePropTechSan Francisco, US

Co-investorsAt One VenturesClimate InvestmentISVNew Climate VenturesSafar PartnersThird Sphere+1 more

Heatenheaten.comin

HEATEN builds industrial heat pumps that recover waste heat from industrial processes such as steelmaking and convert it into clean power and heat.

CleantechClimate TechEnergyRemscheid, DE

Bernd Loeser(CEO)

Co-investorsAdvent InternationalNysnø Climate InvestmentsShell Ventures

Lilac Solutionslilacsolutions.comin

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(President & Chief Technology Officer)inNicholas Goldberg(Chief Legal Officer of Issuer)David Gelinas(Chief Financial Officer of Issuer)inRaef Sully(Chief Executive Officer of Issuer)in

BoardClay Dumas(Director)inDavid Danielson(Director)in

Co-investorsBreakthrough Energy VenturesLowercarbon CapitalBMW i VenturesMount Wilson VenturesPrelude VenturesPresidio Ventures+7 more

Mafixmafix.agApr 2026

Mafix makes a soil additive for agriculture that aims to restore soil health and increase crop yields while capturing atmospheric CO₂.

AgTechCleantechClimate TechMountain View, US

Jade Marcus(Executive Officer, Director, Promoter)Matthew Kanan(Director, Promoter)

BoardJilian Chase(Director)

Co-investorsSilicon ValleyAstera InstituteIMPACT SCIENCE VENTURESPlug and Play Ventures

Muon v2muonvision.com

Muon Vision uses cosmic ray muons to provide 4D continuous subsurface monitoring, delivering volumetric scan data on heap leach pads, tailings dams, and underground assets.

Deep TechHardwareIoTCambridge, US

Tancredi Botto(Founder)

Co-investorsStarshot

Muon Vision

Developing sustainable methods to process critical metals

Cambridge, US

Tancredi Botto(Executive Officer, Director)Ricardo Repenning(Executive Officer)

BoardJoanna Wolfson(Director)Johanna Wolfson(Director)in

NetZeroNitrogen

Developing biological nitrogen fixation solution for rice cultivation

Co-investorsReventZero Carbon Capital

nznnzn2.com

Co-investorsRevent

Rain

Developing autonomous aircraft for rapid wildfire response

rain-logo-v2rain.aeroin𝕏

Rain develops autonomous drone systems for detecting and suppressing wildfire ignitions in forest environments.

AI & Machine LearningClimate TechDefense TechRoboticsBritish Columbia, CA

MaxEphraimBryan

Co-investorsConvective CapitalHAWKTAILVoLo Earth Ventures

Remove background projecteqon.comin

EQON provides control systems for heating cables in ice- and snow-melting installations for cities and commercial buildings, using available data to reduce energy consumption by up to 80%.

CleantechEnergyIoT

Rock Zero

Sustainable mineral processing startup revolutionizing the mining industry

Co-investorsBlindspot Ventures Management Co

rock-zero-logo-v3rockzero.comin

Rock Zero is a technology company with chemistry, materials, and process engineering teams working on chemical and materials science-based technology.

CleantechDeep TechEnergyNew MaterialsCambridge, US

Camden Hunt(Co-Founder & CEO)Benjamin Mowbray(Co-Founder & CTO)Yet-Ming Chiang(Co-Founder & CIO)

Co-investorsBlindspot Ventures Management CoToyota Ventures

Scalvy HRscalvy.comin

Scalvy builds a modular power electronics platform based on distributed "Power Neurons" that convert and control power at the edge of energy loads, replacing centralized high-voltage conversion.

CleantechEnergyHardwareSunnyvale, US

Co-investorsDoon CapitalSilicon Badia

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

Co-investorsBreakthrough Energy VenturesMaterial ImpactSOSV

sublimesublime-systems.comin

Sublime Systems develops an energy-saving, carbon-reducing process for manufacturing cement from previously inaccessible minerals.

CleantechClimate TechConstruction TechNew MaterialsBoston, US

Leah Ellis(Co-founder)inYet-Ming Chiang(Co-founder)in

Co-investorsCongruent VenturesEnergy Impact PartnersLOWERCARBONLowercarbon CapitalPrime Impact FundSteel Atlas+3 more

Sublime Systems

Producer of zero-carbon cement for scalable, sustainable building materials.

Somerville, US

Yet-Ming Chiang(Executive Officer, Director)Leah Ellis(Executive Officer, Director)

BoardKatie Rae(Director)Johanna Wolfson(Director)

PartnerJohanna Wolfson· led

Co-investorsCRH VenturesKhosla VenturesSuffolk TechnologiesThe Engine VenturesEnergy Impact PartnersLowercarbon Capital

Tynttynt.ioin

Tynt develops a patented Reversible Metal Electrodeposition (RME) platform for dynamic dimming and smart tinting of transparent surfaces, ranging from smart eyewear to building facades.

CleantechDeep TechHardwareNew MaterialsBoulder, US

Michael McGehee(Chief Scientist)Tyler Hernandez(CEO & Co-founder)Michael Strand(Cofounder)Ameen K. Saafir(President)John Dwyer(COO + CPO)

BoardSebastian Peck(Director)in

Co-investorsAvilaBuff Gold VenturesKOMPAS VCPrime Impact FundDisruptive VenturesGreycroft+3 more

Veloz Biovelozbio.com

Co-investorsCollaborative Fund

Verdox

Develops electroswing adsorption technology for scalable and cost-effective carbon capture and removal

Co-investorsLOWERCARBONLowercarbon CapitalOUP (Osage University Partners)

verdox-logo-v2verdox.comin

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

Co-investorsBreakthrough Energy VenturesPrime Impact Fund

Vestavesta.earth

Vesta develops Marine Enhanced Rock Weathering, adding carbon-removing olivine sand to coastal systems to permanently remove carbon dioxide, reduce ocean acidity, and support shoreline protection.

CleantechClimate TechImpact & Social Good

PartnerJohanna Wolfson· led

Co-investorsAutodesk FoundationPrime Impact FundAndreessen HorowitzConversion Capital

via-separationsviaseparations.com

Via Separations makes industrial membrane filtration systems that cut the energy used in thermal separation processes.

Cambridge, US

Brent Keller(Executive Officer, Director)Shreya Dave(Executive Officer, Director)

BoardKatie Rae(Director)inArunas Chesonis(Director)in

Co-investorsCapTableClimate InvestmentPrime Impact FundSafar PartnersEmbark VenturesThe Engine Ventures

Zanskarzanskar.com

Zanskar develops geothermal energy projects using AI and advanced geoscience to map subsurface resources and deliver utility-scale, carbon-free power.

AI & Machine LearningDeep TechEnergy

Carl Hoiland(Founder & CEO)inJoel Edwards(Founder)

Co-investorsClearvision VenturesFirst Star VenturesGVP ClimateLOWERCARBONLowercarbon CapitalObvious Ventures+6 more

Zanskarzanskar.us

Zanskar uses geoscience, AI, and advanced drilling methods to map the Earth's subsurface and identify geothermal resources that have been overlooked or considered too risky.

AI & Machine LearningClimate TechEnergy

Carl Hoiland(Founder)inJoel Edwards(Founder)in

Co-investorsPrime Impact FundSafar PartnersBessemer Venture PartnersFirst Star VenturesLowercarbon CapitalObvious Ventures+3 more

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.