Fundraising FoxWhat If Ventures — Full Portfolio
22 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)inNicholas C. Smith(Executive Officer)inMichael Hanley(Executive Officer)Nicholas Smith(Chief Financial Officer and Chief Business Officer)inAaron Weaver(Director)
PartnerStephen Hays· solo GP
Co-investorsAble PartnersAlpha Wave GlobalInVivium CapitalK2 HealthVenturesKorify CapitalNat Turner+6 more
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 Globalatai Life SciencesAtaiBeckleyCatalio Capital Management, LPFJ Labs+6 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(Executive Officer, Director)inEric Morgen(Director)inDov Goldstein(Executive Officer)in
BoardPatrick Enright(Director)in
Co-investorsAndreessen HorowitzElad GilFelicis VenturesIA Seed VenturesLongitude CapitalOrbiMed+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-investorsLIONHEART VENTURESPalo Santo VC
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 CapitalFeenix Venture Partners LLCHashkey CapitalIDG CapitalOak Grove Ventures+1 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 LightAlleyCorpKapor CapitalLifeArc VenturesSamsung Next+1 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(CEO)Steve Simoni(President)inLuke Allen(CTO)
PartnerStephen Hays· solo GP
Co-investorsCapital FactoryCoalitionCraft VenturesForum VenturesInspired CapitalRally Ventures Management, Llc+3 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 & CEO)inNichola Eliovits(Director)inNathaniel Kan(Director)Robert Spinner(Director)
PartnerStephen Hays· solo GP
Co-investorsAvego BioScience CapitalBantam GroupCalm VenturesCSC UpshotEvolution VC PartnersFlucas Ventures+10 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-investorsFJ LabsIter InvestmentsLeafy TunnelNoeticPalo Santo VCRedbus Ventures+1 more
Developing microscale robots to deliver therapies locally to targeted brain disease areas.
PartnerStephen Hays· solo GP
Co-investorsBlue Ivy VenturesBold Capital PartnersCompoundDeep InsightDolby Family VenturesFlucas Ventures+1 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 AssociatesPlains Ventures+5 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)
BoardTerry Doyle(Director)Vijay Pande, Ph.D.(Director)
Co-investorsAndreessen HorowitzBeast VenturesEvolution VenturesMana 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 CapitalBackswing 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
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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 Tech
Eli Berlin(Founder)in
BoardChris PicardoinDusan PerovicinSid ShenaiinSamuel BjorkinBassil Dahiyat, Ph.D.
Co-investorsDeviation CapitalDigitalis VenturesMadrona Venture GroupSummit Peak InvestmentsAlexandriaKdT Ventures+5 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(CEO, Co-founder)Gabe Dominocielo(Executive Officer, Director)in
BoardJohn Burbank(Director)
PartnerStephen Hays· solo GP
Co-investors7BC Venture CapitalChampion Hill VenturesCrosscut VenturesDefense AngelsHemisphere Ventures LLCNimble Partners+7 more
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
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.