Fundraising FoxWhat If Ventures — Full Portfolio
27 tracked investments · listed companies and verified rows first
Alto Neuroscience is a clinical-stage biopharmaceutical company developing biology-driven medicines for neuropsychiatric conditions, using measurements of brain biology to predict clinical response and identify patients likely to benefit from its drug candidates.
BiotechDigital HealthMental HealthMountain View, US
Amit Etkin(Founder)inAdam Savitz(Executive Officer)inMichael Hanley(Executive Officer)Nicholas Smith(Chief Financial Officer and Chief Business Officer)inAaron Weaver(Director)Po Yu (Jeff) Chen(Director)
PartnerStephen Hays· solo GP
Co-investorsAble PartnersAlpha Wave GlobalGaingelsInVivium CapitalK2 HealthVenturesKorify Capital+12 more
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AtaiBeckley develops rapid-acting mental health treatments and therapies for patients with difficult-to-treat mental health conditions.
BiotechDeep TechDigital HealthHealthtechMedical DevicesMental Health
Srinivas Rao(Co-Founder and Chief Executive Officer)inChristian Angermayer(Founder and Chairman of the Board)
PartnerStephen Hays· solo GP
Co-investorsAble PartnersAlpha Wave GlobalAtaiBeckleyBailey Venture PartnersBright Success CapitalCatalio Capital Management, LP+13 more
BIOAGE develops therapies targeting the molecular pathways that drive aging to increase healthspan and address age-related chronic diseases.
BiotechHealthtechLongevityRichmond, US
Kristen Fortney, PhD(Co-Founder, CEO)Eric Morgen, MD(Co-Founder, COO)Kristen Fortney(Founder)inEric Morgen(Founder)inDov Goldstein(Executive Officer)in
BoardPatrick Enright(Director)in
Co-investorsAndreessen HorowitzElad GilFelicis VenturesGreen Sands EquityIA Seed VenturesLongitude Capital+19 more
Maximus provides technology, operational services, and human-centered design to government agencies, supporting programs across health, human services, veteran support, citizen experience, defense, and national security.
Defense TechGovTech
Co-investorsBlue Delta CapitalElectric AntShrug Capital
2AB BioscienceS develops first-in-class small molecule therapeutics targeting the 5-HT2A receptor for ophthalmology and central nervous system disorders.
BiotechDeep TechDigital HealthEdTechHealthtechMedical DevicesSanta Monica, US
Alex Speiser(Co-Founder & Chief Executive Officer)inCharles Nichols, PhD(Co-Founder & Chief Science Officer)David Nichols, PhD(Co-Founder & Head of Chemistry)Tim Foster, PhD(Co-Founder & Head of Translational Discovery)
BoardGopal Das(Director)
PartnerStephen Hays· solo GP
Co-investorsGaingelsLIONHEART VENTURESPalo Santo VCTabula Rasa Ventures
Aeon Industrial designs and builds weapon systems and targeting software for military operators, combining warfighter experience with engineering.
AI & Machine LearningDeep TechDefense TechHardware
Naweed Tahmas(Chief Executive Officer)inBill Parodi(Chief Engineer)inDean Love(Chief Strategy Officer)inWes Shover(Chief Growth Officer)in
PartnerStephen Hays· solo GP
Co-investorsAntiMaC Venture CapitalNKECHI IREGBULEMSilent CapitalVintheraFeenix Venture Partners LLC+4 more
Affect Therapeutics operates an app-based digital treatment provider offering care for substance use disorders (alcohol, cannabis, opioid) and mental health conditions like depression and anxiety, using methods such as contingency management, CBT, medication-assisted treatment, and peer support.
Digital HealthHealthtechMental HealthNew York, US
Jeff DeFlavio(Co-founder)inKristin Muhlner(Executive Officer, Director)in
BoardKevin Ryan(Director)inJeff Rinehart(Director)in
PartnerStephen Hays· solo GP
Co-investorsArtis VenturesCity LightAlleyCorpGaingelsKapor CapitalLifeArc Ventures+3 more
Allen Control Systems develops autonomous precision weapon systems designed to counter unmanned aerial threats for military and allied forces.
AI & Machine LearningDefense TechRobotics
Mike Wior(Founder)Steve Simoni(Founder)inLuke Allen(Founder)Steven Simoni(Founder)
PartnerStephen Hays· solo GP
Co-investorsCapital FactoryCoalitionCraft VenturesForum VenturesInspired CapitalLitquidity Ventures+5 more
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Alto Pharmacy is a full-service pharmacy that offers patients medication delivery, cost transparency, and pharmacist access.
ConsumerDigital HealthHealthtechSan Francisco, US
James Karraker(Executive Officer, Director)Mattieu Gamache-Asselin(Founder)inNichola Eliovits(Director)inNathaniel Kan(Director)Robert Spinner(Director)Jamie Karraker(Founder)
PartnerStephen Hays· solo GP
Co-investorsAidenlair CapitalAvego BioScience CapitalBantam GroupCalm VenturesCSC UpshotEvolution VC Partners+17 more
Amyriad Therapeutics develops disease-modifying therapies for Alzheimer's disease, with a lead candidate called Ismidenon that employs novel cholinergic enhancement mechanisms.
BiotechDigital HealthLongevity
Anil K. Ratty(CEO & Founder)in
PartnerStephen Hays· solo GP
Co-investorsElevat3 Capital
Applied Cognition develops neuroscience-based therapeutics and diagnostics, leveraging AI and deep expertise in drug development and clinical research for neurological disorders.
AI & Machine LearningBiotechDeep TechHealthtech
Paul Dagum(CEO & Co-founder)inJake Winebaum(Executive Chairman & Co-founder)in
PartnerStephen Hays· solo GP
Co-investorsGreyMatterMayfield FundSupermoon Capital
HealthtechSaratoga Springs, US
Daniel T. Pickett III(Executive Officer, Director)Timothy Koehler(Executive Officer)Greg Stephen(Executive Officer)
BoardHolly Benson(Director)Mary Langowski(Director)Peter Dorsman(Director)
PartnerStephen Hays· solo GP
Co-investorsClaritas CapitalOlive Tree VenturesPivotal Life SciencesTakeda VenturesVista Equity Partners
AtaiBeckley develops rapid-acting and durable mental health treatments for patients with difficult-to-treat mental health conditions.
BiotechMedical DevicesMental Health
Christian AngermayerCosmo Feilding Mellen(Founder)inSrinivas Rao
PartnerStephen Hays· solo GP
Co-investorsBailey Venture PartnersFJ LabsIter InvestmentsLeafy TunnelMaiora Rebel VenturesNoetic+4 more
Developing microscale robots to deliver therapies locally to targeted brain disease areas.
PartnerStephen Hays· solo GP
Co-investorsAlumni VenturesBlue Ivy VenturesBold Capital PartnersCompoundDeep InsightDolby Family Ventures+9 more
Firehawk Aerospace manufactures solid rocket motors, energetic materials, and propellant using additive (3D printing) manufacturing to produce propellant grains and hybrid rocket engine components.
Defense TechHardwareSpace TechWilmington, US
Will Edwards(Cofounder)inAndrew Wills Edwards(Executive Officer)
PartnerStephen Hays· solo GP
Co-investorsBackswing VenturesCathexis VenturesCubit CapitalDecisive PointDraper AssociatesGaingels+6 more
Gilgamesh Pharmaceutical develops novel chemical entities for psychiatric disorders using medicinal chemistry and AI-powered translational platforms to design rapid-acting therapies targeting neurobiological mechanisms rather than symptom management.
AI & Machine LearningBiotechDigital HealthHealthtechNew York City, US
Jonathan Sporn(Founder)inAndrew Kruegel(Founder)inDalibor Sames(Founder)inAndrew Kruegel, Ph.D.(Executive Officer)Thomas Kevin Murphy, Ph.D.(Executive Officer)JONATHAN SPORN(Founder)in
Co-investorsAera VCAlumni VenturesAwareness VentureFrontera Technology VenturesFrontier Path VCGaingels+26 more
Maximus is an online telehealth clinic offering clinically-validated, personalized prescription protocols and lab testing focused on health optimization ("performance medicine") for men and women, covering areas like testosterone optimization, medical weight loss, hair regrowth, and stress/sleep support.
Digital HealthHealthtechLongevityWellness & FitnessLos Angeles, US
Saviz Sepah(Executive Officer, Director)S. Cameron Sepah(Founder & CEO)Cameron Sepah(Founder)in
Co-investors10X Capital8VCFounders FundAbstract VenturesCarnrite VenturesChamaeleon+9 more
Ora is an AI-native medical education platform that provides study tools including question banks, flashcards, and content libraries for medical students preparing for licensing exams like the USMLE.
AI & Machine LearningEdTechHealthtechSan Francisco, US
Ryan Phelps(Founder)inKevin Bastoul(Founder)inJacob Caccamo(Founder)inRyan Phelps MD during(Founder)
Co-investorsY CombinatorGeneral CatalystPioneerGoodFin VenturesPeterson Venture PartnersRed Rooster Ventures+2 more
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Osmind is a public benefit corporation developing technology and research infrastructure to accelerate evidence-based mental health treatments, including therapies like ketamine, and to improve patient access to care.
AI & Machine LearningBiotechDigital HealthHealthtechMedical DevicesMental HealthSaaSSan Francisco, US
Lucia Huang(Founder)inJimmy Qian(Founder)inJacob Anstey(Operations Associate)Sam Kennedy(Head of Engineering)Rachel Rosenberg(Customer Operations Lead)Mapolo Buessing(Product Manager)
Co-investorsAble PartnersFelicis VenturesGaingelsGeneral CatalystGold House VenturesMVP Ventures+16 more
Perseus Defense builds autonomous defense systems.
Advanced ManufacturingAI & Machine LearningDefense TechHardwareRoboticsAustin, US
Jason Cornelius(CEO)inSteve Messinger(CTO)inJason Cornelius Steve Messinger(Founder)
Co-investorsAlumni VenturesBow CapitalGaingelsLobster CapitalMaiora Rebel VenturesOlive Tree Capital+17 more
Q.bio provides quantitative biology assessments and longitudinal health monitoring for preventive care, offering comprehensive measurable exams at the scale of premium care providers.
AI & Machine LearningBiotechDigital HealthHealthtechSan Carlos, US
Jeffrey Kaditz(Executive Officer, Director, Promoter)Clarissa Shen(Executive Officer)Jeff Kaditz(Founder)
BoardTerry Doyle(Director)Vijay Pande, Ph.D.(Director)
Co-investorsAlumni VenturesAndreessen HorowitzBeast VenturesEvolution VenturesGaingelsMana Ventures
Raven Space Systems develops Microwave Assisted Deposition (MAD) 3D printing technology to manufacture aerospace-grade thermoset and ceramic composite structures, thermal protection, and related parts.
Advanced ManufacturingDefense TechSpace Tech
Ryan Cowdrey(Cofounder)inBlake Herren(Cofounder)in
Co-investorsCapital FactoryFortySix Venture CapitalGaingelsBackswing VenturesMana Ventures
Reliable AI develops tools and solutions for responsible and ethical artificial intelligence applications, serving researchers and organizations seeking to understand how language models represent and process information.
AI & Machine LearningEdTechEnterprise SoftwareLegalTechSaaSOslo, NO
Markus Kreutzer(CEO, Co-Founder)inHalvor Tyseng(CTO, Co-Founder)inJonas Timmann Mjaaland(CPO, Co-Founder)inTor Ole Bigton Odden(Co-Founder)Anders Malthe-Sørenssen(Co-Founder)
Co-investorsSondo CapitalCalm VenturesCoatue ManagementEclipseGaingelsIsland Green Capital+7 more
Terray is a drug discovery company that combines proprietary hardware, large-scale experimental datasets, and AI through its EMMI platform to design small molecule medicines.
AI & Machine LearningBiotechDeep TechPasadena, US
Eli Berlin(Founder)inJacob Berlin, Ph.D.(Chief Executive Officer)Jacob Berlin(Founder)Jacob Berlin Eli Berlin(Founder)Nathan Collins(Founder)
BoardChris Picardoin
Co-investorsDeviation CapitalDigitalis VenturesGaingelsMadrona Venture GroupMana VenturesNVIDIA+6 more
TMRW Life Sciences builds an FDA-cleared automated platform for managing and storing frozen eggs and embryos, using RFID tracking and an "ivfOS" digital database to monitor and secure specimens.
Digital HealthFemTechHealthtechMedical DevicesNew York, US
Joshua Abram(Director)inTara Comonte(Director)inAlan Murray(Director)in
BoardAndrew Schwab(Director)Vinay Shah(Director)Emily Drabant Conley(Director)in
Co-investorsGV (Google Ventures)5AM VenturesTRANSFORMATION CAPITAL
Umbra designs, builds, tests, and operates satellite systems with precision radar imagery capabilities for space-based missions and intelligence applications.
Deep TechDefense TechSpace TechSanta Barbara, US
David Langan(Founder)Gabe Dominocielo(Founder)in
BoardJohn Burbank(Director)
PartnerStephen Hays· solo GP
Co-investors7BC Venture CapitalChampion Hill VenturesCrosscut VenturesDefense AngelsHemisphere Ventures LLCNimble Partners+9 more
Vitalize provides an AI platform for health systems that unifies staffing, scheduling, and capacity management to optimize labor operations.
AI & Machine LearningEnterprise SoftwareHealthtechSaaSSan Francisco, US
Veeraj Shah(Founder)inSanketh Andhavarapu(Founder)inNikhil D'SouzaMel Condos(Head of Talent)Ryan Jordan(Talent)Brandon Yu(Product)
Co-investors.406 VenturesDorm RoomMemorialCare Innovation FundOak HC/FTY CombinatorAnorak Ventures+15 more
Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.