/Investor DB

E8 Angels

Angel networkoperating company · company profile

Pre-Seed–Seed · 3 people tracked

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Investment thesis

E8 invests in early-stage companies building solutions for a thriving planet, spanning energy generation and storage, transportation, built environment, agriculture, water, and related areas. Operating as a community of investors—including operators, scientists, founders, executives, and industry experts—E8 members collaborate on screening and diligence but make their own individual decisions about where to write checks. The firm believes environmental impact and financial returns are complementary priorities. Entrepreneurs who come through E8 receive honest feedback from experienced investors, reviewing 500+ companies a year. Investing since 2006, E8 emphasizes long-term commitment and connecting investors, entrepreneurs, and partners.

Source: firm website, verified Sep 26, 2026.

Stage
Pre-Seed–Seed
Instruments
Equity
Founded
2006
Last 12 months
2 investments
Tracked investments
200
Unicorns
1
Acquisitions
3

Team · 3 people

from curated

Founder mafia

2 people who came through E8 Angels went on to found or lead other companies.

What they invest in

from 105 of 200 portfolio companies

Cleantech ×77Energy ×51Climate Tech ×39Hardware ×30New Materials ×24Advanced Manufacturing ×21AI & Machine Learning ×15SaaS ×15

HQs:United States×90Canada×7Singapore×1

Who they back

founder profiles across 72 portfolio companies
56%
solo founders
40 of 72 mapped founding teams
23%
repeat founders
of 73 founders with career history
~2 yrs
old at investment
median across 20 dated deals

Founding team size:solo founder×402 founders×183 founders×94+ founders×5

Where their founders studiedfrom 73 founders with education data

Stanford University ×6Massachusetts Institute of Technology ×5Harvard University ×4MIT Sloan School of Management ×4University of Washington ×4Cornell Johnson Graduate School of Management ×3Princeton University ×3The Ohio State University ×3

What their founders studiedfrom 70 founders with field-of-study data

Engineering ×25Business & Management ×18Economics ×11Computer Science ×9Physics ×6Politics & Policy ×6Chemistry ×5Humanities ×5

Where their founders worked beforefrom 73 founders with career history

Microsoft ×4Cornell ×3McKinsey & Company ×3CleanTech Alliance ×2Gliding Ant Ventures ×2IBM ×2ICF International ×2National Science Foundation ×2

Accelerator rootsportfolio companies that came through a program

Techstars ×11Y Combinator ×2

22 founders hold a PhD · 18 hold an MBA (of 76 with degree data)

Investments · 200 tracked

founders shown can be your intro path

By year:2026 · 22025 · 12024 · 32023 · 12022 · 32021 · 52020 · 12018 · 52015 · 12012 · 325 dated

Algafilmalgafilm.com

AlgaFilm develops an algae-based biofilm technology for wastewater treatment that recovers nutrients as a sustainable alternative to conventional treatment methods.

BiotechCleantechClimate TechVancouver, CA

Pierre Côté(President)Ahren Britton(CEO)in

Co-investorsBURNT ISLAND VENTURES

Algenesisalgenesislabs.comin

Algenesis Labs develops plant-based, biodegradable polyurethanes and polymers designed to replace petroleum-based materials while retaining durability.

Circular EconomyCleantechNew MaterialsSan Diego, US

Dr. Stephen Mayfield(Founder)Dr. Robert Pomeroy(Co-founder)Dr. Michael Burkart(Co-founder)Nicholas Sandland(Executive Officer, Director)Peter Morgan(Executive Officer, Promoter)Thomas Cooke(Executive Officer, Director)

Co-investorsBand of AngelsCirculate CapitalFamily Angel Management FundFirst Bight VenturesMeliorateSwan Venture Fund

Aluma Poweralumapower.comin𝕏Dec 2021

AlumaPower develops firm, dispatchable power technology aimed at addressing shortfalls in reliable 24/7 electricity for demand from AI data centers, re-industrialization, and electrification.

CleantechClimate TechEnergyHardwareSarnia, CA

Geoffrey Richard Steven Godwin(Director)Rob Alexander(Co-Founder & CEO)inHenk VandenEnde(Co-Founder & EVP, Business Development)inGeoff Sheerin(Inventor, Co-Founder & CTO)Richard Godwin(Co-Founder & Board Member)inPaul Simpson(Co-Founder & Board Member)in

Co-investorsBDC Fund Investments (Fund-of-Funds)BDC Venture CapitalCreative Destruction Lab (CDL)Starbridge Venture Capital LlcBioindustrial Innovation Canada

Applied Carbonappliedcarbon.comin

Applied Carbon develops technologies to regenerate soil and sequester atmospheric carbon for climate change mitigation and soil health improvement.

AgTechCleantechClimate Tech

Jason Aramburu(CEO + Co-Founder)inMorgan M. Williams(COO + Co-Founder)in

Co-investorsAutodesk FoundationCongruent VenturesS2G InvestmentsTO VCWireframe VenturesZag Capital+2 more

Aquaggaaquagga.comin

Aquagga develops field-deployable technology that uses a patented hydrothermal process to permanently destroy PFAS chemicals, breaking them down into harmless byproducts.

Advanced ManufacturingCleantechClimate TechDeep TechEnterprise SoftwareTacoma, US

Brian Pinkard(Cofounder)inNigel Sharp(Co-Founder & former CEO)inChristopher Woodruff(Executive Officer, Director)

Co-investorsVertueLab

AquaPoroaquaporo.comin𝕏Jun 2026

Aquaporo manufactures drinking water directly from atmospheric humidity using proprietary ALMA technology, offering residential units (Droplet) and industrial modular systems (Stream) for on-site water production.

CleantechHardwareAnaheim, US

Kyle E. Cordova(Founder)in

BoardLindy Fishburne(Director)inKristopher H Gilman(Director)

Co-investorsCerberus VenturesCool Climate CollectiveHumba VenturesBreakout Ventures

Arcadia Powerarcadia.comin𝕏

Arcadia is an energy intelligence platform that helps businesses manage utility bills, procure energy, and track sustainability through a single interface.

AI & Machine LearningClimate TechEnergyEnterprise SoftwareSaaSWashington, US

Kiran Bhatraju(Founder)inRyan Nesbitt(Executive Officer)

Co-investorsAlumni VenturesBay Bridge Ventures ClimateBlue Ivy VenturesBoxGroupBroadscaleCamber Creek+17 more

Arcimotoarcimoto.com

Arcimoto builds compact all-electric vehicles, including the FUV (Fun Utility Vehicle) and MUV (Modular Utility Vehicle), designed as right-sized alternatives to conventional cars.

Advanced ManufacturingCleantechHardwareMobility & TransportationEugene, US

MARK DOUGLAS FROHNMAYER(Executive Officer, Director)DOUGLAS MARTIN CAMPOLI(Executive Officer)Mark Frohnmayer(Founder)

BoardTHOMAS THURSTON(Director)JEFFERSON MOORE CURL(Director)TERRY LEON BECKER(Director)

Co-investorsVenture Capital Investment Management

Ateiosateios.comin𝕏

Ateios develops electrode manufacturing techniques designed to accelerate production speed, reduce carbon emissions, and decrease the physical footprint of battery manufacturing and gigafactories.

Advanced ManufacturingCleantechEnergyMedical DevicesNew MaterialsLa Jolla, US

Terry Taber(CTO)

Co-investorsCarat Venture PartnersCharmides CapitalCowtown AngelsElevate VenturesGood Growth CapitalHG Ventures+7 more

Atmosbuildatmos.comin𝕏Defunct

Atmos provides an online platform for managing the complete homebuilding workflow from start to finish.

PropTechSan Francisco, US

Nicholas Donahue(Founder)inTrent Hedge(Founder)inMatthew Rastovac(Founder)inAustin Kahn(Founder)inAlex Savtchenko(Head of People)

Co-investorsDuke Capital PartnersFjor FoundersNoveus CapitalSilicon VenturesVibe CapitalWayfinder Ventures+19 more

Automotusautomotus.aiin𝕏

Automotus uses computer vision and AI to help cities and airports manage commercial vehicle traffic and reduce CO2 emissions.

AI & Machine LearningClimate TechGovTechMobility & TransportationSaaSLos Angeles, US

Harris Lummus(Executive Officer, Director)Jordan JustusinHarris Lummisin

BoardOliver Libby(Director)Tom Spengler(Director)Gabe Klein(Director)in

Co-investorsBand of AngelsEmerging VenturesIrishAngelsKeiki CapitalPartnership Fund for NYCQuake Capital+6 more

Autonomic Materials, Inc.autonomicmaterials.com

Champaign, US

Gordon Fischer(Executive Officer, Director)Magnus Andersson(Executive Officer)Joseph Giuliani(Executive Officer, Director, Promoter)Scott White(Director)

BoardJohn Miller(Director)Curt Burwell(Director)

Co-investorsPhoenix Venture Partners

Autonomous Tractorautonomoustractor.com

Autonomous Tractor Corporation (ATC) builds conversion packages that turn traditional hydraulic and diesel farm equipment into diesel-electric machinery using its direct-to-wheel electric motor system, and is developing ammonia-electric conversions and an optical AI guidance system.

AgTechCleantechHardwareSt. Michael, US

Terry Anderson(Executive Officer, Director)Kraig Schulz(Executive Officer, Director)Allen Lash(Director)John Rhea(Director)Charles Sidman(Director)Ann Anderson(Executive Officer)

Beta Hatchbetahatch.comin

Seattle, US

Virginia Emery(Executive Officer, Director, Promoter)in

Co-investorsATEL VenturesInnova Memphis, Inc.Cavallo VenturesLewis & Clark AgriFood

Blue Ocean Gearblueoceangear.comin

Blue Ocean Gear manufactures smart buoys and software for commercial fishing operations, enabling real-time tracking and monitoring of fishing gear via satellite and radio connectivity.

AgTechHardwareIoTLogistics & Supply Chain

Co-investorsBrighter CapitalCreative Destruction Lab (CDL)Good Growth CapitalSignia Venture PartnersBoost VCConservation International Ventures+2 more

BlueDot Photonicsbluedotphotonics.comin𝕏May 2021

BlueDot Photonics develops light-emitting and light-shifting materials, including a quantum-cutting technology that boosts the energy output of silicon solar panels and phosphors for x-ray imaging and document security.

CleantechEnergyNew MaterialsKirkland, US

Jared Silvia(Executive Officer, Director)inDaniel Kroupa(Director)in

BoardKareem Dabbagh(Director)in

Co-investorsIdeashipThird DerivativeVoLo Earth Ventures

Brammobrammo.com

Talent, US

Craig A. Bramscher(Executive Officer, Director)Phillip LeBris(Executive Officer)Bruce Gilpin(Executive Officer, Director)

BoardMATT INGLE(Director)DAVID CLOTT(Director)David Kurtz(Director)

Co-investorsChrysalixPolaris Industries

Brightthinkbright.mxin

Bright provides solar energy systems and battery storage (BESS) solutions for industrial, manufacturing, and commercial businesses in Mexico, along with flexible financing options including PPAs, leasing, and direct purchase to facilitate renewable energy adoption.

Advanced ManufacturingCleantechClimate TechEnergyFintechNew York City, US

Jonah Greenberger(Founder)inJB StraubelAna Cardoso(Head of People Ops)Fanny Wenzel(Talent Acquisition)Diana Garcia(Head of Recruiting)Kathya Hernandez(Lead Recruiter)

Co-investorsY CombinatorCollaborative FundFirst Round CapitalSoma Capital10x GroupCaffeinated Capital+17 more

Cadenza Innovationcadenzainnovation.comin

Cadenza Innovation develops a patented lithium-ion cell packaging architecture and battery energy storage systems focused on safety, energy density, and low cost.

CleantechEnergyHardwareBridgeport, US

Christina Lampe-Onnerud(CEO)inPer Onnerund(Executive Officer, Director)Christina Lampe-Onnerund(Executive Officer, Director)Per Onnerud(Chief Technology Officer)inDavid Feinberg(Executive Officer)Brian Chan(Executive Officer)in

Co-investorsGolden SeedsConnecticut InnovationsScale InvestorsBelle Impact FundScout Fund

Cala Systemscalasystems.comin𝕏

Cala manufactures a heat pump water heater designed for residential use that heats water efficiently for households of up to five people.

CleantechEnergyHardwareIoTSomerville, US

Michael Rigney(Executive Officer, Director)in

BoardMichael Ting(Director)David Wilson(Director)Thomas Ferguson(Director)in

Co-investorsBURNT ISLAND VENTURESClean Energy VentureCollaborative FundLeap Forward VenturesClimate Capital

Capro-Xcapro-x.com

New York, US

Juan Guzman(Executive Officer, Director)in

Co-investorsSOSV

Ceciliaceciliamaterials.com

Cecilia uses microwave-based technology to convert industrial plastic waste into carbon materials and clean hydrogen.

Circular EconomyCleantechNew Materials

Co-investorsChrysalixAglae VenturesNorthzoneScale Venture PartnersSound VenturesThe Council

CECILIA ENERGY INC.ceciliaenergy.comin

Cecilia produces advanced carbon materials derived from plastic waste for industrial applications.

Circular EconomyCleantechEnergyNew MaterialsNewark, US

circecircebioscience.comOct 2021

Circe develops a biotechnology platform that uses advanced gas transformation to produce carbon-negative molecules at scale for manufacturing.

Advanced ManufacturingBiotechCleantechClimate TechBoston, US

Marika Ziesack(Executive Officer, Director, Promoter)Shannon Nangle(Founder)inCiaran Dunn(Founder)

Co-investorsBee PartnersElementum VenturesExceptional VenturesJuniperSilicon ValleyUndeterred Capital+4 more

clean-cropcleancroptech.com

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)inDaniel Cavanaugh(Co-founder)in

BoardTom Boddez(Director)Justin Frankert(Director)Pete Oberle(Director)Amy Duffuor(Director)in

Co-investorsAzolla VenturesBread And Butter Ventures, LlcClimate Impact CapitalInnova Memphis, Inc.Prime Impact FundR/GA Ventures+4 more

CleanFibercleanfiber.com

CleanFiber manufactures cellulose-based insulation from recycled newsprint for the building materials industry.

Advanced ManufacturingCircular EconomyCleantechConstruction TechNew MaterialsBuffalo, US

Sami Rahman(CEO)inErik Gregory(Chief Financial Officer)inJonathan Strimling(Executive Officer)James Austin(Executive Officer)Marco Peterson(Executive Officer, Director)

BoardNoah Lerner(Director)in

Co-investorsAligned Climate CapitalBoston Harbor AngelsClean Energy VentureClimate Innovation CapitalGlobal BrainKeiretsu Forum+7 more

Climate First Bankclimatefirstbank.comin

Climate First Bank is a bank offering personal and business banking with sustainability-focused financing such as a solar loan program and ESOP financing.

Climate TechFintechImpact & Social Good

Co-investorsGlobal Blockchain VenturesRadicle ImpactAllianceBernsteinEchoVC PartnersWellington Management

ConnectDERconnectder.comin

ConnectDER makes meter socket adapters (meter collars) that connect residential solar, battery, and EV charging systems directly at the electric meter, avoiding panel upgrades and complex electrical work.

CleantechClimate TechEnergyHardwarePhiladelphia, US

Whitman Fulton(Executive Officer, Director)inIvo Steklac(Executive Officer, Director)inMark Gustafson(Director)

BoardDaniel Goldman(Director)inRajan Gupta(Director)Matt Coleman(Director)

Co-investorsBlackRockTemasekClean Energy VentureClean Energy VenturesEvergy VenturesLG Technology Ventures+5 more

Defunkifydefunkify.com

Defunkify manufactures plant-based laundry detergents designed to eliminate odors at the molecular level rather than masking them with fragrance, formulated as safe alternatives for sensitive skin and performance fabrics.

Circular EconomyCleantechConsumerDirect to ConsumerPortland, US

Chance MerrittAshley NordellJohn M Miller(Executive Officer, Director)Robbie Reid(Executive Officer, Director)Richard Geiger(Executive Officer, Director)

BoardMyron Chadowitz(Director)

Co-investorsLong Way VenturesSafer MadeCascade Seed Fund

Derapiderapi.comin

Derapi provides a platform with APIs, monitoring console, and support services that enable teams to connect energy devices, manage energy data, and operate distributed energy programs.

CleantechCloud ComputingDeveloper ToolsEnergySaaS

Thomas Lee(Founder & President)in

Co-investorsMission One CapitalRadicle ImpactUbiquity VenturesUNION Labs VenturesEarthshot VenturesTuesday Capital

E-zince-zinc.cain𝕏

e-Zinc develops long-duration energy storage solutions using zinc-based technology for grid resilience, remote power, and renewable energy integration.

CleantechClimate TechEnergyHardwareOntario, CA

Dr. Gregory X. Zhang(Founder)James Larsenin

Co-investorsToyota VenturesAnzu PartnersEarth FoundryEnergy FoundryGraphite VenturesVentioneers Capital+5 more

Earthshot Labsearthshot.ecoin

Earthshot provides end-to-end support for land stewards developing and financing nature-based carbon projects, including greenhouse gas accounting, compliance with carbon standards, and project financing.

CleantechClimate TechImpact & Social GoodSebastopol, US

Troy Carter(CEO & Co-Founder)inPatrick Leung(Executive Officer, Director)

BoardMaryanna Saenko(Director)in

Co-investorsAcorn Pacific VenturesParameter VenturesTrailhead CapitalEarth FoundryEnergy FoundryFuture Ventures+7 more

Ecellixecellix.comin𝕏Nov 2018

Ecellix develops anode material for lithium-ion batteries that significantly increases capacity compared to traditional graphite, targeting battery manufacturers.

CleantechEnergyNew MaterialsSnoqualmie, US

Jerry Schwartz(Founder)inJason William Schwartz(Director)John J Anderson(Director)

Co-investorsaVentureKeiretsu Forum

ElectricFishelectricfish.coin𝕏Apr 2021

Electric Fish builds products for a decentralized electric grid system to enable energy independence.

Advanced ManufacturingCleantechDeep TechEnergyMobility & TransportationFremont, US

Anurag KamalinVince Wong(Founder)inLeonardo Mattiazzi(President)inFolasade Olanrewaju Ayoola(Director, Promoter)Nelio Batista(Director, Promoter)

Co-investorsCool Climate CollectiveFuture AfricaGener8torTechstarsThird DerivativeVoyager Partners

Embueembue.comin

Embue develops IoT and building automation solutions that help multifamily property owners reduce carbon emissions and operating costs while improving resident comfort.

CleantechEnergyIoTPropTechSaaS

Co-investorsAvesta FundLotus Venture PartnersShadow VenturesThe Alchemy Fund

Emerald Battery Labsemeraldbatterylabs.com

Emerald Battery Labs develops sodium-ion battery technology and related products as an alternative battery chemistry.

CleantechEnergyNew Materials

Enduring Planetenduringplanet.comin𝕏

Enduring Planet provides working capital and fractional CFO services—including bookkeeping, accounting, analytics, and fundraising support—to climate-focused startups and SMBs.

Climate TechFintechImpact & Social GoodPortland, US

Dimitry Gershenson(CEO)inErin Davis(COO)inVsevolod Kozinsky(Director)Olympia DeCastro(Director)

Co-investorsAvesta FundDangerous VenturesK Street CapitalKeiki CapitalKhasma CapitalPortland Seed Fund+2 more

EnergySavvyuplight.comin𝕏

Customer engagement platform (formerly Simple Energy) redefining how utilities engage their customers.

AI & Machine LearningCleantechClimate TechEnergySaaSSeattle, US

Aaron Goldfeder(Executive Officer, Director, Promoter)inScott Case(Executive Officer)inLeo Shklovskii(Executive Officer, Director)Hannah Bascom(General Manager)inJesse Demmel(Chief Technology Officer)inKarl Siebrecht(Executive Officer, Director)in

Co-investorsCoatue ManagementPrelude VenturesRubicon Technology PartnersThe Westly GroupTIMIA CapitalVantagePoint Capital Partners+1 more

EnergyX: Lithium Extraction Companyenergyx.comin𝕏

EnergyX supplies battery-grade lithium hydroxide monohydrate for lithium-ion batteries used in electric vehicles and energy storage systems.

CleantechEnergyNew MaterialsAustin, US

Teague Egan(Founder)in

Co-investorsHelios CapitalJapan AngelsK20 FundEni NextRasmal Ventures

Enzincenzinc.comin𝕏

Enzinc develops zinc micro-sponge anode battery technology for energy storage, working to bring production-ready battery systems to market through battery manufacturing partners.

CleantechEnergyHardwareNew MaterialsSan Anselmo, US

Michael Burz(Chief Executive Officer and Founder)inDeborah Knuckey(Cofounder & Chief Marketing Officer)Adam Buckfelder(Chief Financial Officer)Jenna Lynch(Chief People Officer)inMichael Galluzzo(Chief Technology Officer)inWilliam Cogen(Director)

Co-investorsTO VCAvesta FundNeer Venture PartnersThird Derivative3x5 Partners

Equatorial Space Systems Pte Ltdequatorialspace.comin𝕏

Equatorial Space develops modular, low-cost space launch vehicles powered by proprietary hybrid rocket engine technology using HTP and HRF-1 propellant.

Deep TechHardwareSpace TechSingapore, SG

Co-investorsElev8.vcRSJ Investments SICAV a.s.TechstarsSEEDS Capital

Evrnuevrnu.comin𝕏

Evrnu develops technology to transform textile waste into recyclable fibers for apparel manufacturing, creating sustainable alternatives to conventional textiles without compromising quality or performance.

Circular EconomyCleantechClimate TechNew MaterialsSeattle, US

Christopher Stanev(Executive Officer, Director)inStacy Flynn(Executive Officer, Director)inChristopher Stenev(Executive Officer, Director, Promoter)

BoardCorey Vernon(Director)inKyle Adkins(Director)Julie Guggemos(Director)

Co-investorsGotham Gal VenturesMagic HourPlum Alley InvestmentsRadicle ImpactFor Good VenturesGiant Leap+1 more

Farm Powerfarmpower.com

Farm Power builds and operates regional anaerobic manure digesters that convert dairy farm manure into methane-generated electricity for sale, returning processed manure to partner farmers as pathogen-free organic fertilizer.

AgTechCleantechEnergy

Kevin Maas(Co-founder)Daryl Maas(Co-founder)

Flux Drivefluxdrive.comFeb 2012

Flux Drive builds magnetic soft-torque power transmission equipment, including adjustable speed drives and flexible couplings that transmit torque between a motor and load through magnetic flux rather than a physical connection.

Advanced ManufacturingEnergyHardwareSumner, US

Philip Corbin(Executive Officer, Director)John V. Keenan(Executive Officer)

BoardGeoff Dahl(Director)

Focalfocalml.comin𝕏

Focal is an AI-powered video creation platform that automates scriptwriting, video production, voiceovers, and editing for creators, marketers, and educators.

AI & Machine LearningConsumerCreator EconomyMedia & EntertainmentSaaSSan Francisco, US

Robert Cunningham(CEO)inFelix Wang(CTO)in

Co-investorsLink VenturesY CombinatorAndreessen HorowitzFellowsRecursion VenturesSequoia Capital

Global Neighborg-neighbor.comin

Global Neighbor uses patented directed energy technology to control weeds and stimulate crop growth without chemicals, offering products such as a harvest weed seed control unit (bSCU) and a seed priming system for farmers.

AgTechCleantechDeep TechHardwareXenia, US

Jon Jackson(Executive Officer, Director)inNeil Saterin

BoardJames A Ellis(Director)inDean Didato(Director)in

Co-investorsAg Ventures AllianceClean Energy VentureInnova Memphis, Inc.Texas HALO FundTitletownTech

GoPower EVgopowerev.comin

GoPower installs personal electric vehicle charging infrastructure in parking spaces.

CleantechEnergyHardwarePropTech

John Reister(Founder & CEO)in

Co-investorsGood Growth CapitalVectors Angel

Gro Gurugroguru.comin𝕏

Goanna Ag provides on-farm data collection and irrigation management tools that help growers schedule irrigation, improve water-use efficiency, and increase crop yields.

AgTechAI & Machine LearningCleantechClimate TechIoTSan Diego, US

Tom Dowling(Chief Operating Officer, founder of Goanna Ag)Patrick Henry(Executive Officer, Director)inGaurav (Jay) Jalota(Chief Executive Officer)inRoy Moore(Director)Farooq Anjum(Executive Officer, Director)

Co-investorsCove FundElevation VenturesLongley CapitalCerraCap Ventures

Group14 Technologiesgroup14.technologyin𝕏

Group14 develops silicon battery materials, specifically SCC55®, for automotive and consumer electronics manufacturers.

CleantechEnergyHardwareNew MaterialsWoodinville, US

Henry Costantino(Executive Officer)Rick Luebbe(Founder)inDr. Rick CostantinoJohn Reagh(Director)Eric Luebbe(Executive Officer, Director, Promoter)Bill Funcannon(Director)

Co-investorsBASF Venture Capital GmbHOVP Venture PartnersEarth Venture CapitalMetaplanetSalviaVsquared Ventures+2 more

Harvest Thermalharvest-thermal.comin

Harvest Thermal makes an all-in-one home heating, cooling, and hot water system that pairs an air-to-water heat pump with an insulated thermal storage tank and optimization software to shift electricity use to cheaper, cleaner periods.

Advanced ManufacturingCleantechClimate TechEnergyHardwareKensington, US

JanePierreKen Munson(Executive Officer, Director)inElisabeth Jane Melia(Executive Officer, Director)

Co-investors37 AngelsAstiaBerkeley Angel NetworkClimate Impact CapitalCool Climate CollectiveDangerous Ventures+9 more

Honeycombhoneycomb.ioin𝕏

Honeycomb provides observability and monitoring software that helps engineering teams understand how their software behaves in production.

AI & Machine LearningCloud ComputingData & InfrastructureDeveloper ToolsEnterprise SoftwareSan Francisco, US

Charity Majors(Founder)inChristine Yen(Founder)inChloe Sladden(Founder)

Co-investorsAfore CapitalDCVC (Data Collective)Merian VenturesMotive ForceOMERS VenturesScale Venture Partners+9 more

Hydrovoltshydrovolts.comFeb 2012

EnergySeattle, US

William Burton Hamner(Executive Officer, Director)Mike Layton(Executive Officer)

BoardEli Lamb(Director)Paul Curtis(Director)

Co-investorsKeiretsu Forum

Idle Smartidlesmart.comin

Idle Smart makes automated idle reduction systems for heavy-duty trucking fleets, cutting fuel use, downtime, and CO2 emissions from extended engine idling.

CleantechIoTLogistics & Supply ChainMobility & TransportationLenox, US

Jeff Lynch(Founder & CEO)in

Co-investorsBeacon AngelsClimate Innovation CapitalEvergreen Climate InnovationsKCRise FundService Provider CapitalStout Street Capital+2 more

Imperium Technologiesimperiumzone.cominMar 2026 · $2M

Imperium Technologies builds an integrated electro-mechanical steam trap paired with a real-time steam system intelligence platform to detect and manage steam system waste, faults, and emissions.

Advanced ManufacturingCleantechEnergyIoTCedar Park, US

Brad Medford(Co-Founder & CEO)in

BoardClay Davis(Director)Gordon Judd(Co-Founder & Chief Technology Officer)in

Co-investorsAggie Angel NetworkCentral Texas Angel NetworkSWAN Impact NetworkSymbiotic Ventures

Indow Windowsindowwindows.comin𝕏

Indow manufactures custom window inserts designed to reduce drafts, lower noise, and improve energy efficiency in existing windows.

CleantechClimate TechConstruction TechHardwarePropTechPortland, US

Co-investorsKeiretsu ForumPortland Seed FundSustainVCVision Ridge Capital Partners

Inovuesinovues.comin𝕏

INOVUES makes non-invasive glazing retrofit systems that upgrade existing building facades and windows to improve energy efficiency and cut carbon emissions without replacing the original components.

CleantechClimate TechPropTechHouston, US

Anas Al Kassas(Executive Officer, Director)inAhmad Atwan(Director)inJohn Paulos(Director)

Co-investorsCentral Texas Angel NetworkR/GA VenturesLateral CapitalSaint-Gobain NOVA

Inventwoodinventwood.cominApr 2025

InventWood produces SUPERWOOD, a wood-based structural material engineered at the nanoscale to be stronger than steel while lighter, offering properties like fire resistance and transparency for use in construction and buildings.

Advanced ManufacturingCleantechConstruction TechNew MaterialsFrederick, US

Liangbing Hu(Founder)inALEXANDER LAU(CEO, President and Chairman)TIMOTHY KREBS(Secretary, Treasurer)

BoardKEVIN TIDWELL(Director)

Co-investorsBaruch Future VenturesCool Climate CollectiveDangerous VenturesPulse Fund

it’s electricitselectric.usin𝕏Jun 2024

it's electric installs and maintains curbside Level 2 EV chargers on partner properties in U.S. cities, using the property's spare electrical supply at no cost to the owner.

CleantechEnergyMobility & TransportationNYC, US

Tiya Gordon(Founder)inNathan King(Founder)in

BoardTopias Soininen(Director)

Co-investorsChloe CapitalClean Energy VentureFailup VenturesFamily Angel Management FundGener8torGraham Walker Venture+9 more

Joule Casejoulecase.cominMay 2021

Joulecase develops battery and portable energy storage technology for on-the-go, mobile, and large-scale power applications.

CleantechEnergyHardwareSeattle, US

Alex Livingston(Executive Officer, Director)inJames Wagoner(Executive Officer, Director)

Co-investorsThird DerivativeKeiretsu Forum

LevelTen Energyleveltenenergy.comin𝕏

LevelTen Energy operates a platform that connects renewable energy developers with customers and market participants, facilitating project visibility and deal-making in the renewable energy sector.

B2B MarketplacesCleantechClimate TechEnergySaaSSeattle, US

Bryce Smith(Executive Officer, Director)inWilliam Thomas(Executive Officer)

BoardDavid Cohen(Director)inKarly Wentz(Director)inGreg Lyons(Director)Tim Woodward(Director)in

Co-investorsAster CapitalB Capital GroupB4 CapitalConstellation Technology VenturesPrelude VenturesTechstars+7 more

Other

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

60HzAdaptive Symbiotic TechnologiesAdaraADI Thermal TechnologiesAlpha GridApana (Kirkland Analytics)Applied Carbon (was Climate Robotics)Atlas PowerAxiom ExergyBioVantageBlue MarbleBlueWaterHouseBuilding Energy Inc.C-MotiveCarbixCarbon QuestCerahelixCleanChoice Energy (Ethical Electric)Columbia GreenColumbia Power TechnologyDelaware Power SystemsE-Zn/E-ZincEarthly LabsEdgehogEdTekEELI TechnologyElectrumEmmeEmpower Micro SystemsEnerg2EnergyXFledgeFull Circle FarmsGaia AI, Inc.Green Canopy HomesGreenBackerGreenwood Clean EnergyGroup 14GybeIntellihotIterosLeap PVLittle FeetMarine ConstructionMicroEnergy CreditsMicrogreenNew Earth EnergyNuCubeNvirovateOcean BuildOne Energy RenewablesPacific Light TechnologiesPalebluePecos WindPotaVidaPowerLight (was LaserMotive)Promus Outlook GrangePV CompleteQD SolarQEATechQuantPower (Formerly Banyan)Quantum EnergyResource Fiber LLCRetroluxREVRidgeline EnergyRynoScape CarbonScope 5Sieber EnergySkyline InnovationSmash SolarSpark MeterSparkzSunspanTalkingHeads Wireless (THW)TBF EnvironmentalTeadoraTessolarTidal VisionUrbanXVirticusVolexionWattIQ (was Ibis)WISErg

Exits · 3

3 acquisitions · showing 2

Energ2acq. by BASF Venture Capital America Inc.Solsticeacq. by Perch Energy

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Frequently asked questions

How many investments has E8 Angels made?
E8 Angels has 200 tracked investments, 3 of which have exited, including 3 dated in the last 24 months.
What stage does E8 Angels invest at?
E8 Angels invests at the Pre-Seed, Seed stages.
What sectors does E8 Angels focus on?
E8 Angels focuses on AgTech, Circular Economy, Cleantech, Climate Tech, Construction Tech, Energy, FoodTech, Impact & Social Good, Mobility & Transportation, New Materials.
Who does E8 Angels co-invest with?
E8 Angels most often shares deals with Techstars, Clean Energy Venture, Third Derivative, among 315 tracked co-investors.

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