Fundraising Fox
Helium-3 Ventures
Venture capitalNew York · Seed–Series B · 5 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.
Team · 5 people
from public directories
David Hendrickson, Columbia Business School–trained and Pershing Square finalist, writes $100K–$5M checks (sweet spot $1.5M) at pre‑seed/seed, backing enterprise SaaS and capital‑intensive frontier tech with follow‑ons informed by public‑markets analysis.
John Dauer, a former rock band frontman turned founding partner, brings a rare creative-operator perspective, offers founders direct open-door access, and focuses on pre-seed and seed deals across diverse sectors.
What they invest in
from 45 of 56 portfolio companiesHardware ×13Advanced Manufacturing ×12AI & Machine Learning ×12Deep Tech ×11Cleantech ×10Enterprise Software ×10SaaS ×10Space Tech ×7
HQs:United States×36United Kingdom×3Canada×2Mexico×1
Who they back
founder profiles across 25 portfolio companiesFounding team size:solo founder×32 founders×113 founders×44+ founders×7
Where their founders studiedfrom 35 founders with education data
Stanford University ×4Massachusetts Institute of Technology ×3Carnegie Mellon University ×2Duke University ×2Harvard University ×2University of Michigan ×2University of Wisconsin-Madison ×2
What their founders studiedfrom 33 founders with field-of-study data
Engineering ×13Computer Science ×7Economics ×3Business & Management ×2Finance & Accounting ×2Physics ×2Politics & Policy ×2
Where their founders worked beforefrom 41 founders with career history
Acosta ×2Clarkson University ×2EnvoyNow (acq. 2017) ×2GE ×2OpenAtlas ×2Prime Movers Lab ×2Purdue University ×2SpaceX ×2
Accelerator rootsportfolio companies that came through a program
5 founders hold a PhD · 4 hold an MBA (of 39 with degree data)
Investments · 56 tracked
founders shown can be your intro pathBy year:2024 · 12023 · 12022 · 72021 · 82018 · 12017 · 220 dated
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 PartnersGaingelsJIMCONew Ground Ventures+10 more
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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 VenturesBreakthrough Energy VenturesCommodity CapitalCubit Capital+25 more
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(Founder)inDaria Balatsky(Founder)inCaroline McKeon(Founder)inAlexander Brown(Founder)in
Co-investorsY CombinatorDay One VenturesAngel Collective Opportunity FundBBQ CapitalCollaborative FundCool Climate Collective+13 more
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(CEO)inShu Li(Founder/CSO)
BoardChris Rivest(Director)Vijay Pande(Director)inKyle Vogt(Director)
Co-investorsAgFunderAndreessen HorowitzDCVC (Data Collective)Mission BiocapitalUnovis Asset ManagementY Combinator+7 more
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 InvestmentsGaingels+29 more
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(CEO)inRyan McLinko(CTO)inMike Mancini(Executive Officer)Siamak Ebadi(Lead RF Engineer)inHall Chen(RF Payload Design)inShraddha Pandya(Talent Acquisition)
Co-investorsAndreessen HorowitzATEL VenturesBlack FlagBoxGroupCantos VenturesCherubic Ventures+87 more
Blackcart provides a Try Before You Buy solution for e-commerce merchants, letting online shoppers try products at home before paying.
E-commerceRetail TechSaaSToronto
Matthew Chan(Founder)inLi Nan Ouyang(Executive Officer, Director)
BoardPrashant Shukla(Director)Adam Struck(Director)in
Co-investorsFlucas VenturesGaingelsHyde Park Venture PartnersMana VenturesWestern Technology InvestmentOrigin Ventures+1 more
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(CEO)inJoshua Krall(Founder)inJoe Wilding(Founder)inJosh Krall(Founder)Slava Solonitsyn(Investor in Boom)in
Co-investorsAccess Ventures (New York)Activant CapitalAlpha FundsAltra VentureAngel Collective Opportunity FundBessemer Venture Partners+61 more
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 M. Jacobsen(Founder)in
Co-investorsAngel Collective Opportunity FundBeyond CapitalCapital FactoryCincyTechCollective LiquidityeGateway Capital+23 more
Contraline develops new contraceptive and reproductive health technologies, with a focus on male contraception.
BiotechDigital HealthMedical DevicesCharlottesville, US
Kevin Eisenfrats(Founder)inJohn Herr(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+19 more
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(Founder)inJody Rebak(Executive Officer)inMik Naayem(Founder)
BoardDavid Pakman(Director)in
Co-investorsA.Capital Venturesa16z cryptoAndreessen HorowitzAppWorks VenturesBlockchain CoinvestorsBond Capital Management+46 more
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 VenturesGaingels+11 more
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(CEO)inJeffrey Wang(Founder)inWalden Yan(Co-Founder)Marcus Holm(Chief Revenue Officer)inDan McArdle(Founder)Jeff Wang(Founder)
Co-investors137 Ventures49 Palms VenturesAndreessen HorowitzFelicis VenturesHaystackLightspeed Venture Partners+29 more
Figure develops general-purpose humanoid robots designed for deployment in workforce and home environments.
AI & Machine LearningHardwareRoboticsSunnyvale, US
Brett Adcock(Founder)inLee Randaccio(Executive Officer)Dana Berlin(Executive Officer)Logan Berkowitz(Executive Officer)Colby Adcock(Director)Peter Welinder(Director)
Co-investors10T Fund1802 VenturesAlign VenturesAliya Capital PartnersAtaraxia CapitalAUDEO VENTURES+57 more
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)inLilian Boukheir(Recruiting Assistant)Gabriel Steinberg(Backend Engineer)Andrew Dryga(Founding Engineer)Brian Manifold(Fullstack Engineer)Jeff Spencer(Interim Head of Marketing)
Co-investorsGaingelsY Combinator1984 Ventures Management, LlcAmino CapitalUncorrelated Ventures
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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(CEO)inMatt Feury(CTO)inPaige Todd(Founder)John Nystrom(Platform Lead)Tom Pethtel(Camera Software Lead)Megan Adcock(Megan)
Co-investorsA*Andreessen HorowitzAnorak VenturesBedrockCoatue ManagementCRV (Charles River Ventures)+26 more
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)inAlexander Clapp
Co-investorsAlumni VenturesY Combinator0BSAlleyCorpAxon Partners GroupCarao Ventures+14 more
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(CEO)in
Co-investorsAllied Venture PartnersAsymmetry VenturesBeresford VenturesCeltic House Asia PartnersEmerald Technology Ventures AgJude Gomila+4 more
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)inFrancois Ajenstat(Founder)
Co-investorsFounders FundGigafundSV Angela16z cryptoAndreessen HorowitzDCVC (Data Collective)+15 more
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)inLorenzo Sani
Co-investorsY Combinator7percent VenturesEntrepreneur First
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(Founder)inAriel Deschapell(Founder)inGarrett Johnson(Founder)in
BoardSteve Jang(Director)in
Co-investorsAccelerator VenturesComcast VenturesDeepwater Asset ManagementDisruptive VenturesGraph VenturesHustle Fund+12 more
Joy provides customizable wedding websites and planning tools for couples organizing their weddings.
B2B MarketplacesConsumerDirect to ConsumerE-commerceMarketplacesSaaSSan Francisco, US
Vishal Joshi(CEO)inDorian Bach(Founder)inKaiwalya Kher(CTO)inDorian B(Founder)Michael Bach(Founder)Alyssa Alvarez(Director of Talent)
Co-investorsFernbrook Capital ManagementForerunner VenturesGaingelsGeneral CatalystKube VCMVP Ventures+32 more
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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(CEO)inJack RichardJack PawlikinRick Martínez(CTO)
Co-investorsAltaIR CapitalAlumni VentureseLab VenturesGaingelsgener8torGoat Rodeo Capital+19 more
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-investorsBioGenerator VenturesBoro CapitalCool Climate CollectiveDiamond Edge VenturesGaingelsSeaX Ventures+5 more
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(Founder)inBabak Raeisi Nia(Executive Officer, Director)Babak Raeisinia(Founder)
BoardPeter Lee(Director)inScott Brady(Director)inSam Smith-Eppsteiner(Director)in
Co-investorsAIX VenturesAlumni VenturesATEL VenturesAtento CapitalBalerion Space VenturesCadron Capital Partners+19 more
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(Founder)inJack Baber(Founder)in
Co-investorsY CombinatorLearn CapitalBlack Mountain VentuesFlucas VenturesScrum VenturesAsymmetry Ventures+4 more
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 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(Founder)inNathan Kondamuri(Founder)in
BoardRick Yang(Director)inAlex Gurevich(Director)in
Co-investorsAdvancit CapitalAlumni VenturesAngel Capital ManagementBaukunstblue 9 capitalBreak Trail Ventures+24 more
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)inElijah KapasinIsabella Feliciano(HR Recruiter / Generalist)Jamie Martin(Chief of Staff)
Co-investorsY CombinatorGaingels515 VenturesFoundersSafar Partners
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)Matthew Kane(Founder)in
Co-investorsGaingelsLiquid VenturesSafar PartnersY Combinator
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
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(CTO)inWesley Zheng(Founder)inAvante Price(Founder)Avante Price Eli Taylor-Lemire(Founder)Eli Taylor-Lemire(Founder)Karan Kashyap(Founder)
Co-investorsBeni Venture CapitalHuman CapitalMetaplanetOUTBOUND CAPITALWorldQuant VenturesY Combinator+17 more
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)inAaron Mandell(Founder)inPaul Woskov(Founder)
BoardColleen Calhoun(Director)inVinod Khosla(Director)
Co-investorsCollaborative FundFine Structures VenturesPrelude VenturesTechEnergy VenturesThe Engine VenturesXplorer Capital+6 more
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+1 more
San Jose, US
Roman Piszcz(Executive Officer, Director)Andrew Khor(Director)
BoardLoren Straub(Director)in
Co-investorsAlumni VenturesBowery CapitalFJ LabsPlug and Play Ventures
Rain AI develops energy-efficient hardware specifically designed for artificial intelligence workloads.
AI & Machine LearningDeep TechHardwareSemiconductors
Jack Kendall(Founder)inGordon Wilson(Founder)inJuan Claudio Nino(Founder)in
Co-investorsAirbus VenturesGREP VCLiquid VenturesSam AltmanY CombinatorDeepwater Asset Management+11 more
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)inAlex Wheldon(Founder)
Co-investorsClaritas CapitalClocktower VenturesConsenSys MeshFlucas VenturesInspired CapitalInterplay Ventures Early Stage Management Llc+11 more
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)inJeff Carleton(Founder)Mike Cook(Founder)
Co-investorsAlumni VenturesDERIVE VENTURESInitialized CapitalMassMutual VenturesMenlo VenturesMultiplier Capital+7 more
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(Founder)inCindy Taff(Founder)
BoardWilliam Restrepo(Director)Clay Shamblin(Director)Staffan Qvist(Director)in
Co-investorsCarbonCubit CapitalAll AboardCarbon Direct
Sempre Health provides digital health solutions focused on patient engagement and outcomes management for the healthcare industry.
Digital HealthHealthtechSan Francisco, US
Anurati Mathur(Founder)inSwaraj Banerjee(Founder)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+4 more
Skillfully provides verified skills data for workforce decisions through performance-based work simulations rather than proxy measures.
Enterprise SoftwareHR Tech
Co-investorsBetter Ventures Central LlcFounders NetworkSVQuad
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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.
Advanced ManufacturingNew MaterialsSemiconductorsSpace TechCardiff, GB
Joshua Western(Founder)in
Co-investorsE2MC VenturesFJ LabsGaingelsHelios CapitalStarbridge Venture Capital LlcStellar+13 more
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
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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)
Co-investorsAcequia Capital (AceCap)AF WPartnersATEL VenturesAurelia FoundryBalerion Space VenturesBeyond Capital+55 more
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 PartnersGeneral Catalyst+4 more
TransAstra develops propulsion systems and telescope technology for space operations.
Advanced ManufacturingSpace TechLos Angeles, US
Joel Sercel(Founder)inPhilip Wahl(Head of Engineering)Stanley Love(Director, Board Member)Nicole Shumaker(Vice President of Strategic Partnerships)
Co-investorsGaingelsJude GomilaSoma CapitalValkyrieY CombinatorAcequia Capital (AceCap)+11 more
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
AlgaBoomBrollyGenecisPairPrinceton NuEnergySageSTOKETixr
Exits · 2
1 IPOs · 1 acquisitions · showing 1General FusionNASDAQ: GFUZ
Portfolio news
latest coverage across their companies
Boom Supersonic · ipo.club · Sep 14, 2026
Quaise Energy · citybiz.co · Aug 28, 2026
Array Labs · prnewswire.com · Aug 20, 2026
General Fusion · manilatimes.net · Aug 18, 2026
Pair Eyewear · startupintros.com · Jul 13, 2026
Skillful · startupintros.com · Jul 13, 2026
Frequently asked questions
- How many investments has Helium-3 Ventures made?
- Helium-3 Ventures has 56 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 Gaingels, Y Combinator, Alumni Ventures, among 329 tracked co-investors.
Images
Co-investors · 64
Liquid 2 Ventures is a seed-stage venture capital firm founded in 2015 by Joe Montana and based in San Francisco.
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.
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.
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.
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.
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.
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.
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.
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.
Plug and Play is an innovation platform that connects corporations, governments, startups, investors, and universities, running accelerator programs and venture investing across more than 25 vertical industries.
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.
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.
▶52 more co-investors
Amplify PartnersHOF CapitalJetstreamPresight CapitalImmeasurableFifty YearsPrelude VenturesGreylock PartnersNew Enterprise Associates (NEA)Sound VenturesNorwest Venture PartnersUnion Square Ventures (USV)Streamlined VenturesQuiet CapitalSierra VenturesM13AltaIR CapitalLightbank7percent VenturesSaga VenturesInspired CapitalCoinFundAnorak VenturesBaruch Future VenturesAccelerator VenturesMMC VenturesRefactor CapitalAmino Capital8090 IndustriesSemantic VenturesSeaX VenturesEverywhere VenturesKrakenC2 InvestmentsLookout VenturesAbstract VenturesHack VCArray 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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