Propeller VC — Full Portfolio

Platform for floating offshore wind turbines to transform wind energy economics

EnergySan Francisco, US

Sam Kanner(Executive Officer, Director)in

BoardMNMatthew Nordan(Director)in

Co-investorsAZAzolla Ventures

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

AI & Machine LearningCleantechData & InfrastructureEnergy

Co-investorsAZAzolla Ventures

Allium manufactures stainless-clad rebar that meets the AASHTO M 329M standard, offered in a full size range (#3–#18) and ASTM A615 and A706 specifications.

Advanced ManufacturingCleantechConstruction TechNew MaterialsPeabody, US

Steven Jepeal(Cofounder)inSam McAlpine(Founder)in

Co-investorsAEAera VCALAlumni VenturesBABay Bridge Ventures ClimateCACastor VenturesCRCreative Destruction Lab (CDL)TATailwind Futures

Aquatic Labs develops ocean instrumentation and marine analytical technology, drawing on expertise in oceanographic research and physics.

CleantechClimate TechDeep TechHardwareIoT

AAAllan Adams(Founder & CEO)in

Co-investorsBUBURNT ISLAND VENTURESFUFuture Planet Capital

Banyu Carbon develops a photochemical carbon capture process that uses sunlight to release CO2 from seawater, which naturally absorbs atmospheric carbon, for storage in geologic formations or industrial use.

CleantechClimate TechDeep TechSeattle, US

AGAlex Gagnon(Executive Officer, Director)inJSJulian Sachs(Executive Officer, Director)in

Co-investorsCACarbon Removal Partners

Blue Energy develops scalable small modular reactor (SMR) technology to deliver nuclear power at scale.

CleantechClimate TechDeep TechEnergyHardwareWashington, US

JakeTomJacob Jurewicz(Executive Officer, Director)Thomas O'Neill(Executive Officer, Director)Jake Jurewicz(CEO & Co-founder)

BoardOHOrin Hoffman(Director)

Co-investorsATAt One VenturesANAngular VenturesNENeutron Power VenturesNUNucleation CapitalTATamarack GlobalTHThe Engine Ventures+4 more

Bodeswell is a travel chronicle and personal blog documenting a family's extended journey across multiple countries since 2009.

Media & EntertainmentAlameda, US

Co-investorsARArgon VenturesGRGrit Capital PartnersCLCleo Capital

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

CleantechClimate TechDeep TechPasadena, US

Andy StevensonJess AdkinsinPFPierre ForininWBWill Berelson

Co-investorsAZAzolla VenturesGRGrantham Foundation

CarbonRun develops river alkalinity enhancement technology to remove carbon dioxide from the atmosphere while restoring freshwater ecosystems.

CleantechClimate TechImpact & Social GoodDartmouth, CA

Dr. Shannon Sterling(Co-founder)Luke Connell(Founder)inShannon Sterling(Founder)inEddie Halfyard(Founder)

Co-investorsCOCounteract OneGOGolden VenturesPAPanache VenturesPLPlug and Play VenturesCOCounteract

Circle Seafoods operates floating processor barges that freeze wild-caught seafood at ultra-low temperatures at sea, providing refrigeration, sorting and grading technology, and cold storage, along with amenities for fishermen.

Circular EconomyFoodTechHardwareLogistics & Supply ChainSitka, US

Gene Patrick Glaab(Executive Officer, Director)Charles B. Campbell(Executive Officer, Director)Eren Barclay Shultz(Executive Officer, Director)

BoardVictor Kiam(Director)

Ebb develops electrochemical water treatment technology that recovers freshwater from desalination brine while removing carbon dioxide and producing industrial chemicals.

CleantechClimate TechSan Carlos, US

BTBen Tarbell(Founder)inMEMatthew Eisaman(Founder)Dave Hegeman(Founder)Matt Eisaman(Founder)

BoardKevin Tidwell(Director)MBMike Biddle(Director)in

Co-investorsAUAutodesk FoundationCHChrysalixCOCongruent VenturesEVEvok InnovationsPRPrelude VenturesGEGE Ventures

Greenly provides an AI-based platform for carbon accounting, greenhouse gas assessment, product life-cycle analysis (LCA), and ESG compliance reporting.

AI & Machine LearningClimate TechSaaSAstoria, US

MVMatthieu Vegreville(Founder)inANAlexis Normand(Founder)inADArnaud Delubac(Founder)in

Co-investorsENEnergy Impact PartnersFEFelicis VenturesSTSTATION FWIWind VentureXAXAngeBEBenhamou Global Ventures+5 more

Harvey provides domain-specific AI products for legal and professional services firms, enabling contract analysis, due diligence, compliance, and litigation tasks.

AI & Machine LearningEnterprise SoftwareLegalTechSan Francisco, US

WWWinston Weinberg(Founder)inGPGabe Pereyra(Founder)inGPGabriel Pereyra(Founder)inWinston Weinberg Gabriel Pereyra(Founder)

Co-investorsANAndreessen HorowitzKLKleiner PerkinsOPOpenAI Startup FundARArtisanal VenturesCACaesar VenturesCOCoatue Management+29 more

Hohonu builds low-cost water level sensors that transmit real-time data on tides, flooding, and sea-level rise for coastal communities and water monitoring teams.

Climate TechGovTechHardwareIoT

BGBrian Glazer(Founder)inSLStanley Lio(Co-founder / Engineer)

Co-investorsBLBlue StartupsECEcho River CapitalTATailwind FuturesTETELUS Pollinator Fund for Good

Indeximate provides cloud-based analytics for offshore wind operators to monitor the health of subsea power cables using fibre optic sensing technology, predicting cable failures and enabling preventative maintenance.

CleantechData & InfrastructureDeep TechEnergy

Paul Clarkson(Director)Dr Chris Minto(Director)Dr Alastair Godfrey(Director)

Juicebox is an AI recruiting platform that helps talent acquisition teams discover, evaluate, and outreach to candidates at scale using AI search across 800M+ global profiles, alongside AI agents that automate sourcing and follow-up workflows.

Advanced ManufacturingAI & Machine LearningEnterprise SoftwareHR TechSaaSLos Angeles, US

DPDavid Paffenholz(Founder)inIGIshan Gupta(Founder)inLogan Kaeleigh Gilbert(Chief Executive Officer)Duane Leigh Gilbert(Chief Technical Officer)David Paffenholz Ishan Gupta(Founder)Saransh Saini(Founding Engineer)

Co-investorsAMAmino CapitalAVavraBRBrave CapitalSESequoia CapitalY Y CombinatorBOBond Capital Management+11 more

Navier builds the N30, an electric hydrofoil boat that flies above the water using a canard foil configuration and a proprietary flight control system that actively adjusts aileron flaps based on real-time sensor feedback.

CleantechHardwareMobility & TransportationChicago, US

SBSampriti Bhattacharyya(Founder & CEO)inKenny Jensen(CTO)DAVID CALONE(Director)JOSHUA METNICK(Executive Officer, Director)RYAN EBERHARDT(Director)VUJADIN MILINOVICH(Director)

Co-investorsDRDraper AssociatesFOFOG VenturesGAGaingelsKOKoru CapitalMAMarketX VenturesNENextView Ventures+6 more

Nexxa builds AI agents that capture a company's decision logic, institutional knowledge, and operational judgment, then execute tasks by writing directly into the company's systems of record.

AI & Machine LearningEnterprise SoftwareSaaSSunnyvale, US

PWPhilipp Wehn(Founder)inDavid (DH) Huang(Founder)inNSNegeen Sonya Kohyarin

Co-investorsAUAugment VenturesBEBeat VenturesCOConstruct CapitalPLPlug and Play VenturesUNUntapped Ventures

Orpheus Ocean develops remotely operated and autonomous vehicles that enable exploration and data collection in deep ocean environments, including the hadal zone below 6,000 meters, serving oceanographic research, conservation, and resource management applications.

Deep TechHardwareRobotics

JRJake Russell(Co-founder & CEO)inCMCasey Machado(Co-founder & CTO)in

Co-investorsJEJetstream

Rewind develops carbon removal projects leveraging natural processes like biomass and geological storage to capture and sequester carbon at scale for climate mitigation.

Circular EconomyCleantechClimate Tech

Eitan Brettler(Founder)Kobi Kaminitz(Founder)Matthew Geraghty(Founder)Ram Amar(Founder)

Co-investorsLELeap Forward VenturesMEMensch Capital PartnersTHThird DerivativeYEYes VCZOZORABEBessemer Venture Partners+4 more

Rillet is an AI-native ERP system designed for finance teams, built by former Big Four accountants and ERP operators.

AI & Machine LearningEnterprise SoftwareSaaSSan Francisco, US

NKNicolas Kopp(CEO & Founder)inStelios Modes(CTO & Co-founder)in

Co-investorsICICONIQANAndreessen HorowitzBABain Capital VenturesBOBoxGroupCACapital B Private HoldingsFIFirst Round Capital+10 more

Rogo offers a secure AI platform for financial firms that automates workflows across research, analysis, and reporting, using custom-trained language models built for finance.

AI & Machine LearningEnterprise SoftwareFintechNew York, US

GSGabriel Stengel(Founder)inJWJohn Willett(Founder)inTRTumas Rackaitis(Founder)in

Co-investors13137 VenturesALAlleyCorpBOBoxGroupKLKleiner PerkinsMAMantis CapitalPOPositive Sum Capital+12 more

Serval is an AI-native IT service management (ITSM) platform that automates help desk requests, employee onboarding/offboarding, and access provisioning using AI agents.

AI & Machine LearningDeveloper ToolsEnterprise SoftwareSan Francisco, US

JSJake Stauch(Founder)inAMAlex McLeod(Founder)inJake Stauch Alex McLeod(Founder)

Co-investorsAVavraBOBoxGroupCHChemistryFIFirst Round CapitalGEGeneral CatalystMEMeritech Capital Partners+8 more

Vatn designs and manufactures low-cost, modular autonomous underwater vehicles with proprietary autonomy, navigation, and control software for undersea ISR, logistics, sensing, and payload delivery missions.

Defense TechHardwareRoboticsProvidence, US

FMFrederick Mills(Founder)inNMNelson Mills(Founder)inGeoff Manchester(Founder)inDan Hendrix(Founder)Freddie Mills(Founder)

BoardTHThomas Hendrix(Director)in

Co-investorsAIAirbus VenturesBABackswing VenturesBEBeyond CapitalBLBlue CollectiveBVBVVCCACapital Factory+17 more

Vema Hydrogen develops Engineered Mineral Hydrogen (EMH), a patented production method that stimulates naturally occurring subsurface geochemical reactions in ophiolite and BIF rock formations to produce carbon-free hydrogen at under $1/kg.

CleantechClimate TechEnergyHouston, US

PLPierre Levin(CEO)inCMColin McCulley(Director of Operations)in

Co-investorsPAPace VenturesEXExtantia Capital