/Investor DB

Helium-3 Ventures

Venture capital

New York · Seed–Series B · 4 people tracked

Also known as Helium-3

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Investment thesis

Helium-3 Ventures invests in founders building ambitious, innovative companies spanning space technology, clean energy, robotics, AI, healthtech, and consumer sectors — described as companies for 'earth & beyond.' The firm offers extensive founder support, including hiring and recruiting assistance drawn from partners' careers evaluating management teams, deep ties to Columbia University's network of faculty, students, and alumni, selective brand support from influential partners and advisors, on-demand NYC office space, proprietary data resources (such as e-commerce scraping and retail tracking), and a wide executive network for customer introductions and distribution.

Source: firm website, verified Sep 20, 2026.

Stage
Seed–Series B
HQ
New York, NY, US
Leads rounds
Follows
Instruments
Equity
Tracked investments
57
Unicorns
4
IPOs
1
Acquisitions
1

Team · 4 people

from public directories
Gary Russell· Executive Officerin
Howard Morin· Executive Officerin

What they invest in

from 44 of 57 portfolio companies

Hardware ×13AI & Machine Learning ×12Advanced Manufacturing ×11Deep Tech ×11Cleantech ×10Enterprise Software ×10SaaS ×9Space Tech ×7

HQs:United States×36United Kingdom×3Canada×2Mexico×1

Who they back

founder profiles across 25 portfolio companies
28%
solo founders
7 of 25 mapped founding teams
33%
repeat founders
of 39 founders with career history

Founding team size:solo founder×72 founders×113 founders×34+ founders×4

Where their founders studiedfrom 36 founders with education data

Stanford University ×4Carnegie Mellon University ×2Clarkson University ×2Duke University ×2Harvard University ×2University of Michigan ×2University of Wisconsin-Madison ×2

What their founders studiedfrom 32 founders with field-of-study data

Engineering ×12Computer Science ×7Economics ×3Business & Management ×2Finance & Accounting ×2Physics ×2Politics & Policy ×2

Where their founders worked beforefrom 39 founders with career history

Acosta ×2EnvoyNow (acq. 2017) ×2GE ×2OpenAtlas ×2Prime Movers Lab ×2Purdue University ×2SpaceX ×2University of California, Berkeley ×2

Accelerator rootsportfolio companies that came through a program

Y Combinator ×10

5 founders hold a PhD · 4 hold an MBA (of 38 with degree data)

Investments · 57 tracked

founders shown can be your intro path

By year:2024 · 12023 · 12022 · 72021 · 82018 · 12017 · 220 dated

General Fusiongeneralfusion.comin𝕏NASDAQ: GFUZ

General Fusion develops Magnetized Target Fusion (MTF) technology, combining plasma physics, mechanical compression, and liquid metal systems to build a practical, cost-competitive fusion power plant.

CleantechDeep TechEnergyBurnaby, CA

Michael Laberge(Executive Officer)Michel Laberge(Founder & Chief Science Officer)inNathan Gilliland(Executive Officer, Director)inSusan Koch(Executive Officer)inGreg Twinney(Chief Executive Officer)inMegan Wilson(Chief Strategy Officer)in

Co-investorsBraemar Energy VenturesChrysalixEvolution VC PartnersJIMCONew Ground VenturesPender Growth Fund+8 more

Albedoalbedo.comin𝕏Seed · Apr 2021 · $10M

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(Executive Officer, Promoter)inDylan Betts(Executive Officer)in

BoardChristian Garcia(Director)inRaj Shah(Director)in

Co-investorsAngel Collective Opportunity FundBlack FlagBooz Allen VenturesBreakthrough Energy VenturesCommodity CapitalCubit Capital+23 more

Alga Biosciencesalga.bioin𝕏

Alga Biosciences develops feed additives that reduce methane emissions from cattle — cutting cow burps to combat climate change.

Advanced ManufacturingAgTechBiotechClimate TechSan Francisco, US

Alex Brown(Co-founder and CEO)inDaria Balatsky(Founder)inCaroline McKeon(Founder)inAlexander Brown(Founder)in

Co-investorsY CombinatorDay One VenturesAngel Collective Opportunity FundBBQ CapitalCollaborative FundCool Climate Collective+11 more

Alpine Bionobellfoods.comin𝕏Series B · Jul 2021 · $75M

Nobell Foods produces plant-based dairy cheese made from soybean plants engineered to grow casein protein, working with Midwest farmers.

BiotechClimate TechConsumerFoodTechSan Francisco, US

Magi Richani(Founder/CEO)in

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

Co-investorsAgFunderAndreessen HorowitzDCVC (Data Collective)Mission BiocapitalUnovis Asset ManagementY Combinator+7 more

Array Labsarraylabs.ioin𝕏Pre-Seed · Mar 2022 · $600K

Array Labs develops radar technology for aerospace and other leading industries.

Advanced ManufacturingDeep TechDefense TechHardwareSpace TechSan Francisco, US

Andrew Peterson(Founder)inJose Isaac Robledo(Founder)in

Co-investorsACVC PartnersAera VCBBQ CapitalClearance Venture PartnersDellin InvestmentsJude Gomila+23 more

Astranisastranis.comin𝕏

Astranis manufactures small, high-powered geosynchronous satellites equipped with advanced digital processing technology for global telecommunications and connectivity services.

Advanced ManufacturingDeep TechHardwareSpace TechSan Francisco, US

John Gedmark(Founder/CEO)inRyan McLinko(Founder/CTO)inMike Mancini(Executive Officer)

BoardMartin Casado(Director)inEthan Batraski(Director)inDan Berkenstock(Director)

Co-investorsAndreessen HorowitzATEL VenturesBlack FlagBoxGroupCantos VenturesCherubic Ventures+83 more

Blackcartblackcart.com

Toronto

Matthew Chan(Founder)inLi Nan Ouyang(Executive Officer, Director)

BoardPrashant Shukla(Director)Adam Struck(Director)in

Co-investorsFlucas VenturesHyde Park Venture PartnersWestern Technology InvestmentOrigin VenturesStruck Capital

Boom Supersonicboomsupersonic.comin𝕏

Boom Supersonic develops supersonic aircraft and engines, including the Overture commercial airliner and the Symphony turbofan engine, targeting commercial aviation and advanced infrastructure applications.

Advanced ManufacturingDeep TechHardwareMobility & TransportationSpace TechCentennial, US

Blake Scholl(Founder & CEO)inJoshua Krall(Founder)inJoe Wilding(Founder)in

Co-investorsAccess Ventures (New York)Activant CapitalAlpha FundsAltra VentureAngel Collective Opportunity FundBessemer Venture Partners+55 more

Cart Comcart.comin𝕏

Cart.com provides unified commerce and logistics software and services that enable companies to sell and fulfill orders across multiple channels.

E-commerceLogistics & Supply ChainSaaSHouston, US

Omair Tariq(Founder and CEO)inJim Jacobsen(Director)inOmair T.(Founder)inSaheb Sabharwal(Founder)inRemington Tonar, PhD(Co-founder)Jim Jacobson(Director)

Co-investorsAngel Collective Opportunity FundBeyond CapitalCapital FactoryCincyTechCollective LiquidityeGateway Capital+21 more

Contralinecontraline.comin

Contraline develops new contraceptive and reproductive health technologies, with a focus on male contraception.

BiotechDigital HealthMedical DevicesCharlottesville, US

Kevin Eisenfrats(Co-Founder and CEO)inJohn Herr(Co-Founder)

BoardIris Van Alderwerelt van Rosenburgh(Director)Gurdane Bhutani(Director)inMartin J Emerson(Director)Tom Thorpe(Director)

Co-investorsBiotechnology Value FundMBX CapitalAllied Venture PartnersAlumni VenturesAmboy Street VenturesAurum Venture Partners+17 more

Dapper Labsdapperlabs.comin𝕏Series A · Oct 2018 · $15M

Dapper Labs is a venture studio building products and communities at the intersection of culture and emerging technology, focused on digital ownership, data control, and decentralized platforms for creators and collectors.

ConsumerCreator EconomyCrypto & Web3Sector AgnosticVancouver

Roham Gharegozlou(Founder)inDieter Shirley(Founder)inMikhael Naayem(Executive Officer)inJody Rebak(Executive Officer)in

BoardDavid Pakman(Director)inAlex Shih(Director)

Co-investorsA.Capital Venturesa16z cryptoAndreessen HorowitzAppWorks VenturesBlockchain CoinvestorsBond Capital Management+43 more

DigiBuilddigibuild.comin𝕏

DigiBuild is a construction procurement platform that helps general contractors, subcontractors, and property owners source materials, reduce costs, and maintain project timelines.

AI & Machine LearningB2B MarketplacesConstruction TechEnterprise SoftwarePropTechSaaSMiami, US

Robert Salvador(Founder)inApril Moss(Co-Founder & former COO / Chief Customer Officer)inIvan Franco(Founder)in

Co-investorsPICUS CAPITALDraper AssociatesCathexis VenturesChain ReactionEmerging VenturesNeer Venture Partners+10 more

Engineered Artsengineeredarts.co.uk

Humanoid robot platform for AI research and human interaction

Exaexa.aiin𝕏

Exa is an AI-powered search API that retrieves high-quality information from the web in real-time, designed for AI agents, developers, and applications that require precise natural-language search capabilities.

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareSaaSSan Francisco, US

William Bryk(co-founder/CEO)inJeffrey Wang(Founder)inWalden Yan(Co-Founder)Jeffrey (Jeff) Wang(Co-founder)inWill Bryk(CEO)inMarcus Holm(Chief Revenue Officer)in

Co-investors137 Ventures49 Palms VenturesAndreessen HorowitzFelicis VenturesHaystackLightspeed Venture Partners+27 more

Figure AIfigure.aiin𝕏Feb 2024

Figure develops general-purpose humanoid robots designed for deployment in workforce and home environments.

AI & Machine LearningHardwareRoboticsSunnyvale, US

Brett Adcock(Executive Officer, Director)inLee Randaccio(Executive Officer)Dana Berlin(Executive Officer)Logan Berkowitz(Executive Officer)Colby Adcock(Director)Peter Welinder(Director)

Co-investors10T FundAlign VenturesAUDEO VENTURESAurum Venture PartnersBas1s VenturesBeyond Capital+38 more

Firezonefirezone.devin𝕏Seed

Firezone provides zero-trust network access software built on WireGuard that secures connections to corporate applications and infrastructure.

Cloud ComputingCybersecurityDeveloper ToolsEnterprise SoftwareSan Francisco, US

Jamil Bou Kheir(Founder)in

Co-investorsY Combinator1984 Ventures Management, LlcAmino CapitalGaingelsUncorrelated Ventures

Flock Safetyflocksafety.comin𝕏Seed · Aug 2017 · $120K

Flock Safety provides a platform that connects neighborhoods, businesses, and law enforcement to share verified incident information and enable coordinated emergency response based on shared evidence.

AI & Machine LearningDeveloper ToolsEnterprise SoftwareGovTechHardwareSaaSAtlanta, US

Garrett Langley(Founder/CEO)inMatt Feury(Founder/CTO)in

BoardIlya Sukhar(Director)

Co-investorsA*Andreessen HorowitzAnorak VenturesBedrockCoatue ManagementCRV (Charles River Ventures)+23 more

FUTURAfuturalabs.ioSeries A

Futura is a digital dental laboratory solution that provides dentists with an intraoral scanner, clinical management portal, and lab services with training and support.

HealthtechMedical DevicesSaaSWellness & FitnessMexico City, MX

Tommaso Tomba(Founder)inLeonardo Miron(Founder)in

Co-investorsAlumni VenturesY Combinator0BSAlleyCorpCarao VenturesDark Horse Ventures+11 more

Genecis Biogenecis.coin𝕏

Genecis commercializes the production of polyhydroxyalkanoate (PHA), a biodegradable polymer made from bacteria that consume organic waste, offering a sustainable alternative to petroleum-based plastics for packaging, textiles, medical devices, and other applications.

Advanced ManufacturingBiotechCircular EconomyCleantechClimate TechRoboticsToronto, CA

Luna Yu(Founder)in

Co-investorsAllied Venture PartnersAsymmetry VenturesBeresford VenturesCeltic House Asia PartnersEmerald Technology Ventures AgJude Gomila+4 more

Goldengolden.comSeries B · Oct 2022 · $40MAcquired

Golden builds a self-constructing knowledge graph that combines artificial and human intelligence to automatically map and reconcile human knowledge from millions of disparate sources.

AI & Machine LearningData & InfrastructureEnterprise SoftwareSan Francisco, US

Jude Gomila(Founder)

Co-investorsFounders FundGigafundSV Angela16z cryptoAndreessen HorowitzDCVC (Data Collective)+12 more

Hirebolthirebolt.cominSeed

Hirebolt provides access to a curated global network of verified engineers specializing in software, ML, data, and AI implementation, enabling companies to quickly identify and hire technical talent for building AI products.

AI & Machine LearningB2B MarketplacesEnterprise SoftwareHR TechLondon, GB

Alex Zhou(Founder)in

Co-investorsY Combinator7percent VenturesEntrepreneur First

Hydra Hosthydrahost.comin𝕏Seed · Apr 2022 · $10M

Hydra develops Brokkr, an operating system that enables independent data centers to operate AI Factories by providing shared infrastructure, customer access, and monetization tools on a unified network.

AI & Machine LearningCloud ComputingMiami, US

Aaron Ginn(CEO)inAriel Deschapell(Executive Officer)inGarrett Johnson(Executive Officer, Director)in

BoardSteve Jang(Director)in

Co-investorsAccelerator VenturesComcast VenturesDisruptive VenturesGraph VenturesHustle FundKindred Ventures+11 more

Joywithjoy.comin𝕏

Joy provides customizable wedding websites and planning tools for couples organizing their weddings.

B2B MarketplacesConsumerDirect to ConsumerE-commerceMarketplacesSaaSSan Francisco, US

Vishal Joshi(Founder/CEO)inDorian Bach(Founder)inKaiwalya Kher(Founder/CTO)inDorian B(Founder)Vishal J.(Founder)in

Co-investorsFernbrook Capital ManagementForerunner VenturesKube VCMVP VenturesObvious VenturesOlive Tree Capital+29 more

LineLeaplineleap.comin𝕏

LineLeap operates a mobile app that allows nightlife customers to skip venue lines, purchase cover charges, buy event tickets, and order drinks at bars and clubs.

ConsumerFoodTechFuture of WorkMarketplacesNew York City, US

Nicholas Becker(Founder)inMax Schauff(Founder)inPatrick Skelly(Founder)in

Co-investorsAltaIR CapitalAlumni VentureseLab Venturesgener8torGoat Rodeo CapitalGreat Oaks Venture Capital+16 more

Lingrovelingrove.cominSeries A · Nov 2021 · $5M

Lingrove designs and manufactures Ekoa, a bio-based composite material made from flax and plant resins used as wall protection, wall coverings, ceilings, and millwork for hospitality, healthcare, and workplace interiors, as well as automotive interior applications.

CleantechConstruction TechNew MaterialsSan Rafael, US

Joseph Luttwak(Executive Officer, Director)in

BoardTalley Goodson(Director)Thomas Crow(Director)Stephen P. Welker(Director)

Co-investorsBoro CapitalCool Climate CollectiveDiamond Edge VenturesSeaX VenturesSoundboard Venture FundIndieBio+2 more

Machina Labsmachinalabs.aiin𝕏

Machina Labs builds and operates software-defined factories using AI-guided robotics to manufacture complex metal structures and components from digital designs.

Advanced ManufacturingAI & Machine LearningRoboticsChatsworth, US

Edward Mehr(Executive Officer, Director)inBabak Raeisi Nia(Executive Officer, Director)

BoardPeter Lee(Director)inScott Brady(Director)inSam Smith-Eppsteiner(Director)in

Co-investorsAIX VenturesAlumni VenturesATEL VenturesAtento CapitalBalerion Space VenturesCadron Capital Partners+14 more

MindPortalmindportal.cominSeed · May 2021 · $5MDefunct

An AI research organization that develops interface innovations and neural technologies, focusing on human-AI interaction breakthroughs including neural signal processing and thought decoding methods.

AI & Machine LearningConsumerDeep TechDigital HealthHardwareLondon, GB

Ekram Alam(CEO)inJack Baber(CTO)in

Co-investorsY CombinatorLearn CapitalFlucas VenturesScrum VenturesAsymmetry VenturesBlack Mountain Investment Group+3 more

OneTextonetext.comin𝕏Seed

OneText provides SMS marketing software with text-to-buy functionality, AI-powered product recommendations, and live concierge support for ecommerce brands.

E-commerceFintechMarketing TechSaaSSan Francisco, US

Jonathan Fudem(Founder)inDaniel Brain(Founder)in

Co-investorsSterling RoadY CombinatorCoatue ManagementGood FriendsLobster CapitalPioneer+2 more

Pair Eyewearpaireyewear.com𝕏Series B · Nov 2021 · $60M

Pair Eyewear designs and sells prescription and non-prescription eyeglasses with swappable frame tops that allow customers to change styles.

ConsumerDirect to ConsumerHardwareCalifornia, US

Sophia Edelstein(Executive Officer, Director)inNathan Kondamuri(Executive Officer, Director)in

BoardRick Yang(Director)inAlex Gurevich(Director)in

Co-investorsAdvancit CapitalAlumni VenturesBaukunstblue 9 capitalBreak Trail VenturesEvolution VC Partners+16 more

Pirouette Pharmapirouettepharma.com𝕏

Pirouette develops OnePush, a fully automatic hidden-needle auto-injector platform paired with drug programs across chronic and rescue care indications.

Advanced ManufacturingBiotechHealthtechMedical DevicesBoston, US

Conor Cullinane(Founder)inMatthew Kane(Founder)inElijah Kapas(Founder)in

BoardPARINAZ MOTAMEDY(Director)inJOSEPH NEMMERS(Director)

Co-investorsY CombinatorGaingelsFoundersSafar Partners

Pirouettemedicalpirouettemedical.comin𝕏

Pirouette develops self-injection devices for chronic condition management at home, featuring hidden-needle technology to reduce injection anxiety.

BiotechHardwareHealthtechMedical DevicesNew Hampshire, US

Conor Cullinane(Co-Founder, Chairman, CEO, President, Principal Investigator)Matthew J. Kane(Co-Founder, Secretary, and Chief Operating Officer)Elijah Kapas(Co-Founder and Chief Technology Officer)

Co-investorsGaingelsLiquid VenturesSafar PartnersY Combinator

Pnecyclepnecycle.com

Princeton NuEnergy develops proprietary closed-loop manufacturing processes for lithium-ion battery materials using low-temperature plasma-assisted separation technology.

Circular EconomyCleantechEnergyNew MaterialsPrinceton, US

Co-investorsHonda Innovations Silicon ValleyWorldQuant Ventures

Poshposhenergy.comin𝕏Seed · Jan 2022 · $500K

Posh builds rapidly deployable battery storage and on-site power generation systems for commercial, industrial, and data-center customers, paired with intelligent energy management software.

Advanced ManufacturingAI & Machine LearningCleantechClimate TechEnergyEnterprise SoftwareHardwareSan Francisco, US

Minh Chung Hoang(Founder & CTO)in

Co-investorsBeni Venture CapitalMetaplanetOUTBOUND CAPITALWorldQuant VenturesY CombinatorAsymmetry Ventures+10 more

Quaise Energyquaise.cominSeries A · Feb 2022 · $40M

Quaise Energy develops ultra-deep geothermal drilling using gyrotron-powered millimeter-wave technology to reach depths up to 20 km and temperatures up to 500°C, aiming to build superhot geothermal power plants.

CleantechDeep TechEnergyHouston, US

Matt Houde(Founder)inCarlos Araque(Founder)in

BoardColleen Calhoun(Director)inVinod Khosla(Director)William Restrepo(Director)Frohman Anderson(Director)

Co-investorsCollaborative FundFine Structures VenturesPrelude VenturesTechEnergy VenturesThe Engine VenturesXplorer Capital+6 more

Quidnetquidnetenergy.comin

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)

BoardChristina Karapataki(Director)inMatthew Nordan(Director)in

Co-investorsBreakthrough Energy VenturesClean Energy VentureCongruent VenturesNXT VenturesSorenson Impact FoundationClean Energy Ventures

Quotebeamquotebeam.comJul 2022

San Jose, US

Roman Piszcz(Executive Officer, Director)Andrew Khor(Director)

BoardLoren Straub(Director)in

Co-investorsAlumni VenturesBowery CapitalFJ Labs

Rain AIrain.aiinSeries A · Feb 2022 · $25M

Rain AI develops energy-efficient hardware specifically designed for artificial intelligence workloads.

AI & Machine LearningDeep TechHardwareSemiconductors

Jack Kendall(Co-Founder and CEO)in

Co-investorsAirbus VenturesGREP VCLiquid VenturesSam AltmanY CombinatorLoup Ventures+6 more

Rhorho.coin𝕏Series B · Dec 2021 · $75M

Rho offers a business savings account that spreads idle cash across 400+ FDIC-insured banks (via American Deposit Management) for up to $75M in deposit coverage and yield.

Enterprise SoftwareFintechSaaSNew York, US

Everett Cook(Founder & CEO)in

Co-investorsClaritas CapitalClocktower VenturesConsenSys MeshFlucas VenturesInspired CapitalRecall Capital+9 more

Runwiserunwise.comin𝕏Nov 2021

Runwise provides a wireless building control system that replaces traditional control infrastructure, which typically requires many devices, extensive wiring, and days of installation labor, with a single control installed wirelessly in a day or less.

CleantechIoTPropTech

Lee Hoffman(Founder)inMichael Cook(Founder)in

Co-investorsAlumni VenturesDERIVE VENTURESInitialized CapitalMassMutual VenturesMenlo VenturesMultiplier Capital+7 more

Sage Geo Systemssagegeosystems.comin

Sage Geosystems develops pressure geothermal technology to generate energy from the earth's subsurface heat, drawing on decades of experience drilling wells worldwide.

CleantechClimate TechDeep TechEnergyHouston, US

Cynthia Taff(Executive Officer, Director)Lev Ring(Executive Officer, Director)in

BoardWilliam Restrepo(Director)Clay Shamblin(Director)Staffan Qvist(Director)in

Co-investorsCarbonCubit CapitalAll Aboard

Sempre Healthsemprehealth.comSeed · Dec 2021 · $20M

Sempre Health provides digital health solutions focused on patient engagement and outcomes management for the healthcare industry.

Digital HealthHealthtechSan Francisco, US

Anurati Mathur(Executive Officer, Director)inSwaraj Banerjee(Executive Officer, Director)inRobert S. Spalding(Executive Officer, Director)Ashley Carroll(Director)

BoardJenny Abramson(Director)inTyler Rowe(Director)

Co-investorsBlue Venture FundsCencora VenturesCerity Partners VenturesEcho Health VenturesLifeforce CapitalRethink Impact+3 more

Skillfulskillful.lyin

Skillfully provides verified skills data for workforce decisions through performance-based work simulations rather than proxy measures.

Enterprise SoftwareHR Tech

Co-investorsBetter Ventures Central Llc

Space Forgespaceforge.comin

Space Forge develops high-quality substrates for semiconductor applications, using microgravity manufacturing in space to reduce material defects and produce higher-purity, higher-performance materials.

New MaterialsSemiconductorsSpace TechCardiff, GB

Joshua Western(Founder)in

Co-investorsE2MC VenturesHelios CapitalStarbridge Venture Capital LlcTrousdale VenturesType One VenturesUnruly Capital+7 more

SPANspan.ioin𝕏

SPAN develops smart electrical panels that provide real-time home energy monitoring and control, enabling homeowners to track and optimize energy consumption at the room and appliance level to reduce energy bills.

CleantechHardwareIoTSan Francisco, US

Arch Rao(Founder & CEO)inArchan Rao(Executive Officer, Director)Douglas Booms(Executive Officer)inRyan Harris(Executive Officer)in

BoardDipender Saluja(Director)Greg Wasserman(Director)

Co-investorsAngeleno GroupArcTern VenturesClimate CapitalCollaborative FundCongruent VenturesDesigner Fund+21 more

Stoke Spacestokespace.comin𝕏

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)in

BoardChristian Garcia(Director)inPhil Harris(Director)inMorgan Beller(Director)in

Co-investorsAcequia Capital (AceCap)AF WPartnersATEL VenturesAurelia FoundryBalerion Space VenturesBeyond Capital+47 more

Teamworksteamworks.comin𝕏

Teamworks builds technology for athletes and the organizations that support them, serving elite sports teams and organizations.

AI & Machine LearningEnterprise SoftwareSaaSSports TechDurham, US

Zach Maurides(Founder & Chief Executive Officer)inMitch Heath(Co-Founder)inKyle Charters(Executive Officer)inJames Coffos(Executive Officer, Director)in

BoardDan Williams(Director)inHolly Maloney(Director)in

Co-investorsAthletic VenturesAtlanta Tech VillageBlossom Street VenturesDelta-v CapitalDuke Capital PartnersScOp Venture Capital+4 more

TransAstra Corporationtransastra.comSeed

TransAstra develops propulsion systems and telescope technology for space operations.

Advanced ManufacturingSpace TechLos Angeles, US

Joel Sercel(Founder)in

Co-investorsJude GomilaSoma CapitalValkyrieY CombinatorAcequia Capital (AceCap)Cathexis Ventures+9 more

Other

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

AlgaBoomBrollyGenecisMachinaPairPrinceton NuEnergySageSTOKETixr

Exits · 2

1 IPOs · 1 acquisitions · showing 1

General FusionNASDAQ: GFUZ

Portfolio news

latest coverage across their companies

Frequently asked questions

How many investments has Helium-3 Ventures made?
Helium-3 Ventures has 57 tracked investments, 2 of which have exited.
What stage does Helium-3 Ventures invest at?
Helium-3 Ventures invests at the Seed, Series A, Series B stages.
What sectors does Helium-3 Ventures focus on?
Helium-3 Ventures focuses on AI & Machine Learning, Biotech, Circular Economy, Cleantech, Climate Tech, Construction Tech, Consumer, Deep Tech, E-commerce, EdTech, Energy, Fintech, Hardware, Healthtech, Robotics, SaaS, Space Tech.
Where is Helium-3 Ventures located?
Helium-3 Ventures is headquartered in New York, US.
Does Helium-3 Ventures lead rounds?
Helium-3 Ventures typically participates in rounds rather than leading them.
Who does Helium-3 Ventures co-invest with?
Helium-3 Ventures most often shares deals with Y Combinator, Evolution VC Partners, Jude Gomila, among 284 tracked co-investors.

Images

Helium-3 Ventures photo

Co-investors · 64

Liquid Ventures

Liquid 2 Ventures is a seed-stage venture capital firm founded in 2015 by Joe Montana and based in San Francisco.

$250K – $5M
Andreessen Horowitz

Andreessen Horowitz (a16z) is a venture capital firm founded in 2009 by Marc Andreessen and Ben Horowitz, known for pioneering the platform model with a large team of operators supporting founders across stages.

$500K – $50M
UpHonest Capital

UpHonest Capital is a Silicon Valley-based investment firm founded in 2017 that supports cross-border entrepreneurship and investment between China and the United States, and runs media, scout, and incubation programs.

$50K – $1M
Lux Capital

Lux Capital is a venture capital firm that backs founders building transformative deep technologies, having been among the first investors in category-defining companies across AI, robotics, biotech, defense, and infrastructure.

$100K – $100M
Initialized Capital

Initialized Capital is a seed-stage venture firm that partners with founders very early — often before product-market fit — providing hands-on support across product, recruiting, go-to-market, PR, and Series A fundraising.

$1M – $5M
Safar Partners

Safar Partners is an early-stage technology investment firm that backs startups spun out of leading research universities, primarily MIT, Harvard, and the University of Rochester.

Both backed · 3
GV (Google Ventures)

GV (Google Ventures) is a venture capital firm that has invested in AI and machine learning since its early days, backing more than 100 AI companies across infrastructure, life sciences, and applications.

$250K – $50M
Craft Ventures

Craft Ventures is a venture capital firm run by a team of former founders, operators, and investors who partner closely with founders to help build and scale technology companies.

Both backed · 2
$50K – $50M
DST Global

DST Global is a global internet-focused investment firm that backs fast-growing, high-value internet companies. It does not solicit or accept retail investors.

Both backed · 2
$100K – $200M
SOSV

SOSV is a deep tech venture capital firm that makes first-check pre-seed investments and follow-on rounds in startups focused on human and planetary health, providing lab space and hands-on support at its US locations.

Both backed · 2
$30K – $550K
Bling Capital

Bling Capital is a seed-stage venture firm that helps entrepreneurs find and scale product-market fit, backed by a Product Council of 100+ product leaders.

Both backed · 2
$1M – $5M
HOF Capital

HOF Capital is a New York-based venture capital firm investing in companies transforming foundational industries through advanced software and AI.

Both backed · 2
$25K – $15M
▶52 more co-investors

JetstreamPresight CapitalImmeasurableFifty YearsPrelude VenturesGreylock PartnersNew Enterprise Associates (NEA)Sound VenturesNorwest Venture PartnersUnion Square Ventures (USV)Streamlined VenturesQuiet CapitalAmplify PartnersSierra VenturesAltaIR CapitalLightbank7percent VenturesSaga VenturesInspired CapitalCoinFundAnorak VenturesBaruch Future VenturesAccelerator VenturesMMC VenturesRefactor CapitalAmino Capital8090 IndustriesSemantic VenturesSeaX VenturesEverywhere VenturesKrakenPlug and Play VenturesC2 InvestmentsLookout VenturesAbstract VenturesHack VCM13Array Ventures Management LlcCausalDraper Fisher Jurvetson (DFJ)TCV2xNPolychain CapitalValar Ventures LlcHighbury HoldingsSolana VenturesDivergenceLife BiosciencesPrimitive VenturesDream MachineTrammell Venture Partners (TVP)Fox Corporation

Firms observed investing alongside Helium-3 Ventures, from public investor directories. Shared companies are the overlap with Helium-3 Ventures's recorded portfolio.

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