Fundraising Fox
Castor Ventures
Funding platformActively deployingAnAlumni Venturesfund for MIT alumni
Pre-Seed–Late Stage · 5 people tracked
Also known as Castor Ventures (an Alumni Ventures Fund)
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Investment thesis
Castor Ventures operates as an exclusive venture investing platform for MIT alumni, combining professional venture fund management with syndicated deal access. The firm believes that a large, engaged network of fellow alumni investors collectively makes better investment decisions and can access higher-quality deal flow. By co-investing alongside elite venture capital firms and providing transparent due diligence materials, Castor aims to democratize venture access for accredited individuals while maintaining rigorous investment standards.
Source: firm website, verified Aug 6, 2026.
Team · 5 people
from the firm's website & public directories
Founder mafia
3 people who came through Castor Ventures went on to found or lead other companies.
What they invest in
from 50 of 85 portfolio companiesAI & Machine Learning ×22Deep Tech ×15Enterprise Software ×11Hardware ×11SaaS ×11Biotech ×7Data & Infrastructure ×7Advanced Manufacturing ×6
HQs:United States×50Canada×1Israel×1
Who they back
founder profiles across 42 portfolio companiesFounding team size:solo founder×132 founders×153 founders×74+ founders×7
Where their founders studiedfrom 35 founders with education data
Massachusetts Institute of Technology ×5Duke University ×3University of Toronto ×3EPFL ×2Harvard Business School ×2Harvard University ×2MIT Sloan School of Management ×2University of California, Berkeley ×2
What their founders studiedfrom 37 founders with field-of-study data
Engineering ×17Computer Science ×9Life Sciences ×5Business & Management ×4Physics ×4Mathematics & Statistics ×3Finance & Accounting ×2
Where their founders worked beforefrom 41 founders with career history
Google ×6Stanford University ×4Massachusetts Institute of Technology (MIT) ×3Berkeley Lab ×2Microsoft ×2Ramp ×2World Economic Forum ×2
Accelerator rootsportfolio companies that came through a program
15 founders hold a PhD · 6 hold an MBA (of 40 with degree data)
Investments · 85 tracked
founders shown can be your intro pathBy year:2026 · 12024 · 22023 · 22021 · 12020 · 12018 · 12017 · 12016 · 12014 · 111 dated
Celularity is a regenerative and cellular medicine company developing and commercializing biomaterial products and allogeneic, cryopreserved cell therapies derived from the postpartum placenta to target age-related diseases.
BiotechHealthtechLongevityFlorham Park, US
Robert J. Hariri(Executive Officer, Director)inJoseph DosSantos(Chief Financial Officer)inJohn R. Haines(Executive Officer)inStephen A. Brigido(President, Degenerative Disease)inBradley Glover(Executive Officer)Andrew L. Pecora(Executive Officer)in
Co-investorsAlumni VenturesBlue Ivy VenturesPHD VenturesBold Capital Partners
Circle provides a full-stack platform for digital finance, combining blockchain infrastructure, stablecoins (USDC, EURC), and payment networks to enable borderless value exchange and financial access globally.
AI & Machine LearningCrypto & Web3FintechNew York City, US
Jeremy Allaire(Founder)inPatrick Sean Neville(Director)Sid Yadav(Founder)inSean Neville(Founder)inP. Sean Neville(Director)Heath Tarbert(Executive Officer)in
Co-investors10T FundAccelalphabet angelsAlumni VenturesaVentureAxevil Capital+34 more
Domo offers a cloud-based platform that integrates data integration, analytics, automation, and artificial intelligence capabilities to help organizations connect data sources, prepare and analyze information, and automate business processes and workflows.
Enterprise SoftwareSaaSAmerican Fork, US
Josh James(Founder)inShane Atchison(Executive Officer)inMatt Belkin(Executive Officer)inBruce Felt(Executive Officer)inDaren Thayne(Chief Technology Officer & Executive Vice President of Product)inTod Crane(Chief Financial Officer)in
Co-investors3Spoke CapitalAlumni VenturesAndreessen HorowitzBlackRockBlue Ivy VenturesCapital Group+14 more
EverQuote operates an online marketplace where consumers answer questions about their insurance needs and are matched with insurance providers to compare quotes for auto and other policies.
AdTechFintechInsurTechMarketplacesCambridge, US
David Blundin(Director)inSeth Birnbaum(Executive Officer, Director)David Mason(Executive Officer)John Wagner(Executive Officer)inJayme Mendal(Chief Executive Officer and President, Director)inJoseph Sanborn(Chief Financial Officer, Chief Administrative Officer, Treasurer and Secretary)in
Co-investorsAlumni VenturesBlue Ivy VenturesLink VenturesSavano Capital PartnersSecond Alpha PartnersStratim Capital+2 more
Rigetti develops quantum computing hardware and systems, leveraging superconducting quantum processing units cooled by dilution refrigerators to enable advanced quantum computation capabilities.
Advanced ManufacturingHardwareQuantum ComputingRoboticsSan Francisco, US
Chad Rigetti(CEO)inDr. Subodh Kulkarni(President and CEO)Dave Yen(Product Lead)inSteven HeidelWill ZengCelena Tanguay
Co-investorsAlchemist AcceleratorAlpha Intelligence CapitalAME Cloud VenturesAndreessen HorowitzBessemer Venture PartnersDCVC (Data Collective)+34 more
Accolade provides virtual healthcare services including primary care, mental health therapy, and benefits navigation for employees and their families.
Digital HealthHealthtechSaaSPlymouth Meeting, US
Thomas K Spann(Executive Officer, Director)Steve Barnes(Executive Officer)Rajeev Singh(Founder)Debbie Cohen(Executive Officer)John Rollins(Executive Officer)Jeff Smith(Executive Officer)
Co-investors7wire VenturesAccretive, LLCAlumni VenturesAndreessen HorowitzBasecamp FundBlue Ivy Ventures+7 more
Activ Surgical develops intraoperative surgical intelligence technology for surgeons, using AR, AI, machine learning, and sensing to display physiological structures and functions not visible to the naked eye.
AI & Machine LearningHealthtechMedical DevicesBoston, US
Peter Kim(Founder)inMichael Ruehlman(Executive Officer)inTodd Usen(Executive Officer, Director)in
BoardEmily Casey(Director)Ashok Krishnamurthi(Director)inDavid Wells(Director)
Co-investorsReimagined VenturesAlumni VenturesArtis VenturesBasecamp FundCota CapitalDns Capital+8 more
San Mateo, US
Indra Mohan(Director)John Mathon(Executive Officer, Director)
BoardMaha Ibrahim(Director)in
Co-investorsAlumni VenturesBasecamp FundBlue Ivy VenturesCanaan PartnersRosecliff Ventures
Akselos provides SPM (Structural Predictive Maintenance) technology that models how operational decisions like ramp rates and startup/shutdown procedures affect stress, fatigue accumulation, and brittle fracture risk in refinery reactors.
Advanced ManufacturingAI & Machine LearningDeep TechEnergyEnterprise SoftwareSaaS
Thomas Leurent(Founder)inDavid Knezevic(Founder)Phuong Huynh(Founder)
Co-investorsAlumni VenturesBasecamp FundElewitFuture Energy VenturesGRO CapitalJapan Energy Capital+1 more
Aleph Farms develops cultivated meat, growing beef steaks from cow cells using tissue engineering technology, and produced the world's first cultivated thin-cut and ribeye steaks.
BiotechClimate TechFoodTech
Neta Lavon(Co-founder & CTO)inShulamit Levenberg(Founder)inDidier Toubia(Founder)in
Co-investorsAlumni VenturesBasecamp FundBloom8Champel CapitalCockpit InnovationPeregrine Ventures+6 more
Montreal
Jason Nolte(Director)Allan Benchetrit(Chief Executive Officer and Director)Christopher Rowen(Director)Domenic Durante(Chief Financial Officer)
BoardMark Kvamme(Director)inAlan MacIntosh(Director)in
Co-investorsAlumni VenturesAnges QuebecBasecamp FundDrive CapitalFerst Capital PartnersStrawberry Creek Ventures+4 more
The Algorand Foundation supports and grows the Algorand blockchain ecosystem by improving the developer experience, contributing to core protocol infrastructure and standards, and enabling decentralized governance.
Crypto & Web3Deep TechDeveloper ToolsFintechQuantum Computing
Silvio Micali(Founder)inSteven Kokinos(Founder)
Co-investorsAlumni VenturesAndromeda CapitalArrington CapitalBasecamp FundBig Candle CapitalBixin Capital+27 more
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-investorsAera VCAlumni VenturesBay Bridge Ventures ClimateCreative Destruction Lab (CDL)Propeller VC
Ammobia develops a novel ammonia production process that operates at low pressure and low temperature, achieving record-setting conversion rates.
Advanced ManufacturingCleantechEnergySan Francisco, US
Karen Baert(Co-founder & CEO)inTristan Gilbert(Co-founder & CTO)in
Co-investorsChevron Technology VenturesShell VenturesAIR CapitalAlumni VenturesCollaborative FundCreative Destruction Lab (CDL)+6 more
Asylon provides an automated perimeter security platform combining aerial drones, ground robots, and AI-powered monitoring to protect corporate campuses, logistics facilities, and critical infrastructure.
AI & Machine LearningCybersecurityDeep TechDefense TechHardwareRoboticsPhiladelphia, US
Damon Henry(Chief Executive Officer, Founder)inAdam Mohamed(Chief Technology Officer, Founder)inBrent McLaughlin(Chief Operating Officer, Founder)in
Co-investorsAllegion VenturesAlumni VenturesDecisive PointInfodriver CapitalInsight PartnersVeteran Ventures Capital
Atom Computing develops large-scale quantum computers using optically-trapped neutral atoms for on-premises deployment.
Deep TechHardwareQuantum ComputingBerkeley, US
Ben Bloom(Founder)inBenjamin Bloom(Founder)Jonathan King(Founder)
BoardDror Berman(Director)inEthan Batraski(Director)in
Co-investorsAbstract VenturesAlumni VenturesBerkeley FrontierBlue Ivy VenturesBoxGroupCantos Ventures+21 more
Axiom Space develops commercial space stations and provides access to low-Earth orbit microgravity environments for research, manufacturing, and innovation by governments, researchers, and organizations.
Defense TechEdTechHardwareSpace Tech
Dr. Kam Ghaffarian(Founder)inMichael Suffredini(Founder)inKam Ghaffarian(Founder)
Co-investors1802 Ventures2am VCAidenlair CapitalAlumni VenturesAurum Venture PartnersBascom Ventures+43 more
Axoft is developing soft, tissue-mimicking neural implants and supporting bidirectional electronics that record and stimulate brain activity through a minimally-invasive burr-hole procedure.
AI & Machine LearningDeep TechMedical DevicesCambridge, US
Paul Le Floch(Executive Officer, Director)inTianyang Ye(Director)inRachel Sha(Director)in
BoardChia An Lee(Director)Benjamin Pless(Director)
Co-investorsAlumni VenturesAmino CapitalArcherman CapitalBlindspot Ventures Management CoCreative Destruction Lab (CDL)Safar Partners+4 more
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Ayar Labs develops co-packaged optics (CPO) technology for AI infrastructure, enabling optical connectivity between thousands of GPUs across data center racks.
AI & Machine LearningDeep TechHardwareSemiconductorsSan Jose, US
Mark Wade(Founder)inAlex Wright-Gladstein(Founder)Chen Sun(Founder)Milos Popovic(Founder)Rajeev Ram(Founder)Vladimir Stojanovic(Founder)
Co-investorsNVIDIAAlumni VenturesBasecamp FundBerkeley FrontierBlue Bear VenturesFactorial Funds+26 more
BlockFi was a cryptocurrency financial services company; its site now serves only as a wind-down and client remediation portal covering bankruptcy distributions, identity verification, and phishing warnings.
Crypto & Web3FintechNew York, US
Flori Marquez(Executive Officer)Zachary Lee Prince(Executive Officer, Director)Christopher Richard Shaffer(Executive Officer)
BoardKavita Gupta(Director)
Co-investorsAlumni VenturesBlockchain CoinvestorsGalaxy VenturesSprint VcConsensys VenturesFormic Ventures+6 more
Bloomfilter provides end-to-end visibility and traceability over work execution by humans and AI agents, unifying data across development tools and platforms into a shared intelligence layer.
AI & Machine LearningCloud ComputingDeveloper ToolsEnterprise SoftwareCleveland, US
Co-investorsAlumni VenturesChicago Early Growth Ventures (CEGV)Service Provider CapitalStage 2 CapitalTechstarsTribes Ventures+3 more
Boldin (formerly NewRetirement) offers retirement and financial planning software that models taxes, Social Security, real estate, healthcare costs, and long-term care, plus an AI assistant that answers questions based on a user's actual plan.
AI & Machine LearningFintechSaaSMill Valley, US
Stephen Chen(Founder & CEO)Timothy Chen(Director)
BoardSteve Reale(Founder)in
Co-investorsAlumni VenturesBascom VenturesCameron VenturesEvolution VenturesFrontier Venture CapitalIntercept Ventures+4 more
Capella Space designs, builds, and operates synthetic aperture radar (SAR) satellite constellations that provide all-weather, day-and-night Earth observation imagery at sub-0.25m resolution.
Deep TechDefense TechHardwareMedia & EntertainmentSpace TechPalo Alto, US
Payam Banazadeh(Founder)inWilliam Walter Woods(Founder)
BoardWilliam Woods(Founder)Chris Boshuizen(Director)inNabeel Hyatt(Director)in
Co-investorsAlumni VenturesAME Cloud VenturesBlue Ivy VenturesCanaan PartnersCota CapitalDorm Room+13 more
ChainML, Inc. has ceased operations and executed a general assignment for the benefit of its creditors under California law as of June 8, 2026.
Co-investorsAlumni VenturesHTX Ventures (ex Huobi Ventures)NxGenFigment CapitalForesight VenturesHack VC+3 more
Civis Analytics offers an all-in-one, fully managed analytics and AI platform that includes data warehousing, ELT ingestion, reporting and self-service analytics, data activation, GenAI/LLM tools, and identity-resolution matching.
AI & Machine LearningData & InfrastructureMarketing TechSaaSChicago, US
Dan Wagner(Executive Officer, Director)inAlan Fu(Executive Officer)Tim O'Reilly(Director)
BoardChristopher Olsen(Director)inEric Schmidt(Director)
Co-investorsAlumni VenturesDrive CapitalVerizon Ventures
Clear Labs develops fully automated next-generation sequencing (NGS) platforms that process genomic data into insights for research and surveillance applications across infectious disease, food safety, and oncology.
BiotechData & InfrastructureDeep TechHealthtechMedical DevicesSan Carlos, US
Sasan Amini(Founder)inRamin Khaksar(Founder)inEdward Fan(Executive Officer)inBrodie Flanders(Executive Officer, Director)Kazutaka Ohno(Executive Officer)Farzad Naimi(Executive Officer, Director)
Co-investorsMenlo VenturesKhosla VenturesNimble VenturesAlumni VenturesDentsu VenturesFelicis Ventures+14 more
San Jose, US
Yiren Huang(Executive Officer, Director)Alan Armstrong(Executive Officer, Director)Joseph DeFranco(Executive Officer)
BoardLip Bu Tan(Director)inBen Yu(Director)inBill Moore(Director)
Co-investorsBrightstone Venture CapitalCisco InvestmentsM12 (Microsoft's Venture Fund)We VenturesCelesta CapitalDell Technologies Capital+1 more
Cohere builds foundational AI models and enterprise solutions that help businesses automate tasks, accelerate workflows, and enhance decision-making.
AI & Machine LearningDeep TechDeveloper ToolsEnterprise SoftwareSaaSToronto, CA
Aidan Gomez(Co-founder & CEO)Ivan Zhang(Founder)inNick Frosst(Founder)inAidan N. Gomez(Founder)Rahul Sengottuvelu(Founder)inYunyu Lin(Founder)in
Co-investors1802 VenturesAccess Ventures (New York)Advaita CapitalAju IB InvestmentAlumni VenturesBasecamp Fund+36 more
New York, US
David Klein(Founder)inCharles Stonehill(Director)Jessup Shean(Founder)Michael Taormina(Founder)
BoardBrian Hirsch(Director)in
Co-investorsAlumni VenturesAugust CapitalStand Together Ventures LabTribeca Venture Partners
Cumulus provides a digital quality control platform that enables construction and industrial organizations to digitize work procedures, track compliance, and maintain audit records across field operations.
Construction TechEnterprise SoftwareIoTSaaSCambridge, US
Matthew Kleiman(Founder)inAlexander Chmelev(Director)Joshua Kanner(Director)Mark Litke(Director)Brian Panoff(Director)Curtis Rodgers(Director)
Co-investorsAlumni VenturesBrick Mortar VenturesAramco VenturesShell Ventures
Faster, simpler access to market data.
Christina Qi(Founder)in
Co-investors2.12 AngelsAlumni VenturesBelvedere Strategic CapitalBlindspot Ventures Management CoDifferential VenturesFifth Down Capital+17 more
Dataminr provides AI-powered real-time event detection by synthesizing text, images, video, audio, and sensor signals across public data sources.
AI & Machine LearningCybersecurityData & InfrastructureEnterprise SoftwareGovTechImpact & Social GoodNew York, US
Ted Bailey(Founder)inPeter Bailey(Executive Officer)inDaniel O'Connor(Executive Officer)Nella Domenici(Executive Officer)inJeffrey Kinsey(Executive Officer)inJason Edelboim(Executive Officer)in
Co-investors1802 VenturesAdit Ventures Management, LlcAllied Venture PartnersAlpha Square GroupAlumni VenturesBlue Ivy Ventures+27 more
Pioneered streaming TV.
Boston, US
Michael Baker(Executive Officer, Director)Steve Louden(Executive Officer)inSteve Shannon(Executive Officer)inStephen Kay(Executive Officer)inGerard Keating(Executive Officer)Sacha Berlik(Executive Officer)
Co-investorsAgman PartnersBlue Ivy VenturesGlobespan Capital PartnersLuminari CapitalMenlo VenturesWaverley Capital+2 more
BiotechCambridge, US
Bobby Herrara(Executive Officer)Bobby Brooke Herrera(Cofounder)Ann DeWitt(Director)Prashant Chouta(Executive Officer, Director)
Co-investorsAlumni VenturesBlue Ivy VenturesBill & Melinda Gates FoundationKhosla Ventures
New York, US
Tony Jaros(Executive Officer, Director)Dino Di Palma(Director)inAllen Mueller(Executive Officer, Director)
BoardRobert Hower(Director)Maia Heymann(Director)in
Co-investorsGV (Google Ventures)The MBA FundCanaan PartnersConvergeG20 VenturesThe New York Times
Enfabrica develops networking silicon and infrastructure for AI and accelerated computing, using a multi-path switched fabric that connects CPUs, GPUs, and memory endpoints with fault tolerance and load distribution.
AI & Machine LearningData & InfrastructureSemiconductorsMountain View, US
Shrijeet Mukerjee(Director)Rochan Sankar(Founder)inShrijeet Mukherjee(Founder)in
BoardGavin Baker(Director)inStefan Dyckerhoff(Director)
Co-investorsAlumni VenturesBasecamp FundCisco InvestmentsProsperity7 VenturesSamsung Catalyst FundSpark Capital+7 more
Enko discovers and develops novel crop protection products for farmers using a proprietary AI and machine learning discovery platform to combat pests and diseases.
AgTechAI & Machine LearningBiotechBoston, US
Jacqueline Heard(Executive Officer, Director)inTom Meade(Chief Science Officer)Philip Austin(Director)inSteffen Helmling(Director)Anthony Klemm(CEO and Board Director)
Co-investorsAlumni VenturesConnecticut InnovationsDYDX CapitalEndeavor8Germin8 VenturesNovalis LifeSciences+5 more
Epicore Biosystems is a digital health company that develops wearable sweat-sensing devices measuring hydration, electrolyte loss, skin temperature, motion and other biomarkers.
BiotechCambridge, US
Roozbeh Ghaffari(CEO/Co-Founder/Board Member)inJohn Rogers(Co-Founder/Board Member)inAlexander J. Aranyosi(Executive Officer)inAJ Aranyosi, PhD(Chief Digital Officer/Co-Founder)Stephen Lee(Chief Technology Officer/Co-Founder)inJames Ryan(Executive Officer)in
Co-investorsAlumni VenturesJoyance PartnersMilkbox PartnersSteele Foundation for HopeAtaraxia VCPegasus Tech Ventures
Kamel Khalili(Founder)
Co-investorsAbstract VenturesAdjuvant CapitalCivilization Ventures Management, LlcCota CapitalEvolution VC PartnersGreatPoint Ventures+5 more
Santa Clara, US
Sebastien Boyer(Director)Thomas Palomares(Executive Officer, Director)Tjarko Leifer(Executive Officer, Director)in
BoardJason Schoettler(Director)inBruce Leak(Director)inClay Mitchell(Director)
Co-investorsGV (Google Ventures)SBXiXplorer CapitalCalibrate VenturesFall Line CapitalLemnos VC+1 more
Finwave Semiconductor develops GaN-on-Silicon RF technology and devices, including E-mode GaN power amplifiers and high-power broadband RF switches for radio front-end applications.
Deep TechHardwareSemiconductors
Tomas Palacios(Co-founder)in
Co-investorsAlumni VenturesCitta CapitalFine Structures VenturesFoothill VenturesIn-Q-TelSafar Partners+5 more
Foundational Alloy develops engineering alloys through a solid-state process called MetalsFIRST, in which metal is produced without melting to create microstructures unreachable by conventional metallurgy while controlling oxygen and contaminants.
Advanced ManufacturingDeep TechNew Materials
Jasper Lienhard(Founder)Jake(Co-founder (company strategy, operations, financing, commercialization))Chris Schuh(Founder)Jake Guglin(Founder)Tim Rupert(Founder)
Co-investorsAlumni VenturesAmerica's Frontier FundBasecamp FundEl Cap EquityMaterial ImpactOverlap Holdings+6 more
Frore Systems develops active cooling chips (AirJet® Mini and AirJet® Pro) for consumer devices that remove heat silently while improving processor performance.
Data & InfrastructureDeep TechHardwareSemiconductorsSan Jose, US
Seshu Madhavapeddy(Founder)inSurya Ganti(Founder)
Co-investorsAlumni VenturesClear VenturesMayfield FundMVP VenturesProsperity7 VenturesQualcomm Ventures+1 more
Fundamental Research Labs builds autonomous, socially intelligent AI agents capable of reasoning and multi-agent collaboration.
AI & Machine Learning
Nico Christie(Founder)in
Co-investorsAndreessen HorowitzA16Z SpeedrunAlumni VenturesFactorial FundsFirst Spark Ventures, LlcPatron+3 more
General Intuition is an AI research organization focused on developing general artificial intelligence through learning and play-based approaches, utilizing game environments and reinforcement learning to teach machines perception, anticipation, and real-world reasoning capabilities.
AI & Machine LearningDeep TechNaarden
Vincent Micheli(Founder)inPim de Witte(Founder)inJanis Foo(Executive Officer)inLia Zhang(Executive Officer)inKen Colton(Executive Officer)Sohela Lalvani(Executive Officer)in
Co-investorsActivant CapitalAlliance VCAlliance VentureAlumni VenturesBackedBascom Ventures+27 more
Goodpath provides a scalable integrative care model that coordinates care across multiple clinical disciplines for employees.
Digital HealthEnterprise SoftwareHealthtechWellness & Fitness
BoardAkl Fahed(MD, MPH)Nishant Uppal(MD, MBA)
Co-investorsAlumni VenturesBlindspot Ventures Management CoBY Venture PartnersCity LightEnable VenturesHealthy Ventures+3 more
Digital experiences and games for sports and esports fans.
Burlingame, US
Ken Martin(Executive Officer, Director)Ryan Fabian(Director)inChad Hurley(Founder)Nick Swinmurn(Founder)
BoardChris Farmer(Director)inSam Englebardt(Director)in
Co-investorsAlumni VenturesAurumFlucas VenturesRed Beard VenturesSoma CapitalStrawberry Creek Ventures+9 more
Groq designs and manufactures the LPU (Language Processing Unit), a chip purpose-built for AI inference, and operates GroqCloud, a platform for running inference workloads with low latency and cost efficiency across global data centers.
AI & Machine LearningCloud ComputingSemiconductorsPalo Alto, US
Jonathan Ross(Founder)inDouglas Wightman(Founder)
BoardChamath Palihapitiya(Director)in
Co-investorsAccess Ventures (New York)Acequia Capital (AceCap)Alumni VenturesAxiom PartnersB CapitalBanca Investis — Family Office+74 more
GrubMarket is a food tech company operating a B2B and B2C marketplace in the U.S. and Canada, offering both wholesale produce delivery at discounted prices and AI-powered SaaS software solutions for food supply chain businesses including inventory management, warehouse operations, and eCommerce platforms.
B2B MarketplacesE-commerceEnterprise SoftwareFoodTechLogistics & Supply ChainSaaSSan Francisco, US
Mike Xu(CEO, , President)inYang WeiBrian Gallagher(Chief Of Staff)inJack Tao(CTO)Genevieve Wang(Product)Bryan Barsness(Vice President of Software Sales \u0026 Marketing)
Co-investorsAlumni VenturesBascom VenturesBattery VenturesBuilders + BackersCeltic House Asia PartnersDG Ventures, Inc.+50 more
Hayden AI develops artificial intelligence and spatial analytics software for governments and businesses, with a focus on transportation and public safety.
AI & Machine LearningGovTechMobility & TransportationSan Francisco, US
Christopher Carson(Executive Officer, Director)Samuel Dundee(Executive Officer)Connie Valencia(Executive Officer)Marty Beard(CEO)in
BoardSteve Ellis(Director)Lisa Schule(Director)
Co-investorsAlumni VenturesAutotech VenturesBlack Mountain VentuesCostella KirschDoon CapitalFJ Labs+9 more
Heart Aerospace develops electric regional aircraft for commercial airline operators.
Advanced ManufacturingCleantechClimate TechHardwareSpace TechLos Angeles, US
Anders Forslund(CEO)inKlara Forslund(Founder)Bob Criner(Electric Aircraft Propulsion System Engineer)in
Co-investorsBreakthrough Energy Ventures2am VCAlumni VenturesKoru CapitalLowercarbon CapitalSagitta Family Office+15 more
HeronAI provides an AI-powered decision intelligence platform that integrates fragmented operational and financial data across business systems to help mid-market manufacturers and companies identify risks, uncover opportunities, and make faster decisions.
AI & Machine LearningData & InfrastructureEnterprise SoftwareSaaSCambridge, US
Co-investorsGurtin VenturesTechstars
Higlobe facilitates cross-border payments and international transfers for businesses and individuals, offering guaranteed low-cost transactions without transaction fees.
FintechSan Jose, US
Teymour Farman-Farmaian(Co-founder, CEO)inJeff Bolton(Co-founder, CTO)in
Co-investorsAlumni VenturesBasecamp FundBattery VenturesDigital Currency GroupFJ LabsRaptor Group+2 more
humans& is a frontier AI lab focused on building human-centric AI systems that prioritize people and their relationships, emphasizing innovations in reinforcement learning, memory, and user understanding to create AI that strengthens organizations and communities.
AI & Machine LearningEnterprise SoftwareSaaSEl Segundo, US
Eric Zelikman(Founder)inNoah Goodman(Founder)inGeorges Harik(Founder)Alaarif Nooruldeen(Executive Officer, Director)Andi Peng(Founder)Ray Ramadorai(Founder)
Co-investorsGV (Google Ventures)S32SV AngelNVIDIAA.Capital VenturesAlumni Ventures+19 more
Humatics builds high-precision positioning technology for industrial automation, robotics, and rail and transit systems.
Cambridge, US
David A. Mindell(Executive Officer, Director)Gary A. Cohen(Executive Officer, Director)in
BoardRay Stata(Director)Franklin Moss(Director)Chris Cheever(Director)Thomas H. Lee(Director)
Co-investorsAlumni VenturesBlackhorn VenturesBonaventure CapitalTectonic VenturesAirbus VenturesBlue Ivy Ventures+5 more
Working to radically improve the relationship between companies and their employees
Mountain View, US
Wayne Crosby(Founder)inLaszlo Bock(Founder)Jessie Wisdom(Founder)
BoardDanny Rimer(Director)in
Co-investorsAlumni VenturesIndex VenturesIVP (Institutional Venture Partners)TCVWinklevoss Capital
At-home live outdoor reality rowing experience with live classes and connected technology.
Co-investorsActivant CapitalAlumni VenturesRaptor GroupRx3 Growth PartnersSandbridge CapitalWinklevoss Capital+1 more
Impulse Space develops in-space mobility infrastructure and spacecraft, enabling transportation and logistics between Earth orbit, the Moon, and Mars.
Deep TechDefense TechSpace TechRedondo Beach, US
Tom Mueller(Founder)inThomas Mueller(Founder)inEric Romo(Executive Officer, Director)inMargaret Abernathy(Executive Officer)in
BoardMichael Linse(Director)inJohn William Raymond(Director)
Co-investors137 VenturesAlumni VenturesArctic DigitalAsahi Kasei Corporate Venture CapitalBalerion Space VenturesBanner VC+27 more
Lambda operates cloud infrastructure and supercomputers purpose-built for AI training and inference, serving hyperscalers, enterprises, and frontier AI labs.
AI & Machine LearningCloud ComputingData & InfrastructureSan Francisco, US
Stephen Balaban(Founder)inBenhamin Nelson(Executive Officer)Austen Allred(Executive Officer, Director)ML engineers in(Founder)Michael Balaban(Founder)
BoardJessica Verrilli(Director)
Co-investorsAccess Ventures (New York)Air Street CapitalAlpha Square GroupAlumni VenturesB Capital GroupB4 Capital+36 more
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Oura Ring is a wearable smart ring that collects and analyzes 50+ personal health metrics to provide insights on sleep, fitness, and wellness for individual users.
HardwareHealthtechWellness & FitnessSan Francisco, US
Ashley Colley(Founder)Virpi Tuomivaara(Founder)inTom Hale(CEO)inKari Kivela(Founder)Markku Koskela(Founder)Petteri Lahtela(Founder)
Co-investors125 VenturesA-Rod CorpAble PartnersAlumni VenturesB37 VenturesBasecamp Fund+37 more
RapidSOS operates a safety network that connects public safety agencies, enterprises, and consumer/corporate devices to provide critical context and pre-arrival intelligence to emergency responders and 911 dispatchers.
AI & Machine LearningEnterprise SoftwareGovTechNew York, US
Nicholas Horelik(Founder)inMichael Martin(Founder)inNick Horelik(Founder)
BoardDan Nova(Director)Matthew Bozik(Director)
Co-investorsAcrew CapitalAlumni VenturesApax DigitalAvanta VenturesBasecamp FundCity Light+18 more
SkySafe builds airspace security and drone defense technology that lets organizations detect, analyze, and respond to unauthorized drone activity.
CybersecurityDefense TechHardwareIoTSan Diego, US
Grant Jordan(Founder)inMike Spindel(Founder)Melissa Swisher(CRO)inTarak Makecha(Executive Officer)inSteve McQuade(CTO)inPaul Wicks(Executive Officer, Director)in
Co-investorsAlumni VenturesAndreessen HorowitzBeaconsfield CapitalBoxGroupFelicis VenturesFounder Collective+6 more
Sleeper operates a mobile app and website offering free-to-play games, paid contests of skill, and fantasy sports products for sports fans to engage together socially.
ConsumerGamingSocialSports Tech
Henry Leung(Founder)inNan Wang(Founder)Nan Wang Weixi Yen(Founder)Weixi Yen(Founder)
Co-investorsAlumni VenturesAndreessen HorowitzBasecamp FundBirchmere VenturesExpaGeneral Catalyst+9 more
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Strateos develops remote access laboratory software and automation platforms that enable scientists to design, execute, and analyze experiments through cloud-based robotics and control systems.
AI & Machine LearningBiotechDeep TechRoboticsSaaSMenlo Park, US
Chris Krueger(Executive Officer)inMark Fischer-Colbrie(Executive Officer, Director)inDavid Lynch, PhD(Chief Executive Officer)Marc Siladi(Chief Operating Officer)in
BoardJoshua Wolfe(Director)Armen Vidian(Director)in
Co-investorsDCVC (Data Collective)Lux CapitalBlueStone Venture PartnersThird Rock VenturesAlumni VenturesDolby Family Ventures+6 more
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
AlbaAlpacaArtisanAvocaBit Fry Game StudiosBizzenBrio SystemsBriqCabanaCertaCumulusDSDeserveDexaiEdge PaymentsEnableExpoFreebirdHealHonorHorsepower Technologies
Exits · 7
5 IPOs · 2 acquisitions · showing 5CelularityNASDAQ: CELUCircleNYSE: CRCLDomoNASDAQ: DOMOEverQuoteNASDAQ: EVERRigetti Quantum ComputingNASDAQ: RGTI
Portfolio news
latest coverage across their companiesImpulse Space · globenewswire.com · Sep 16, 2026
Ayar Labs · siliconangle.com · Sep 10, 2026
Boldin · help.boldin.com · Sep 4, 2026
Oura · ouraring.com · Jul 15, 2026
Databento · databento.com · Jul 9, 2026
Groq Inc · groq.com · Jun 22, 2026
Atom Computing · finsmes.com · Jun 16, 2026
Frequently asked questions
- How many investments has Castor Ventures made?
- Castor Ventures has 85 tracked investments, 7 of which have exited, including 1 dated in the last 24 months.
- What stage does Castor Ventures invest at?
- Castor Ventures invests at the Pre-Seed, Seed, Series A, Series B, Series C, Growth, Late Stage stages.
- What sectors does Castor Ventures focus on?
- Castor Ventures focuses on AI & Machine Learning, Crypto & Web3, Deep Tech, Hardware, Sector Agnostic, Space Tech.
- Does Castor Ventures lead rounds?
- Castor Ventures typically participates in rounds rather than leading them.
- Who does Castor Ventures co-invest with?
- Castor Ventures most often shares deals with Strawberry Creek Ventures, Basecamp Fund, Blue Ivy Ventures, among 336 tracked co-investors.
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