Fundraising FoxB4 Capital — 2026 Investments
4 investments dated 2026 · listed companies and verified rows first · show all
Goodfire is an AI interpretability research lab that develops methods to reverse-engineer, debug, and control neural networks' internal representations.
AI & Machine LearningDeep TechDeveloper ToolsEnterprise SoftwareSan Francisco, US
Tom McGrath(Founder)inEric Ho(Founder)inDaniel Balsam(Founder)inArcha JaininDaniel Kang(Director)Dan Balsam(Founder)
Board seatYan-David Erlich· per SEC Form D
Co-investorsB Capital GroupCompoundJuniper Ventures Management, LlcLightspeed Venture PartnersMenlo VenturesMythos Ventures Management, Llc+8 more
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Numerion Labs develops machine learning algorithms for drug discovery, combining computational chemistry, structural biology, and medicinal chemistry.
AI & Machine LearningBiotechDeep TechHealthtechMedical DevicesSan Francisco, US
Alex Levy(Founder)inIzhar Wallach(Founder)inSteve Worland(CEO)inPamela Tsuruda(VP, Biology)Mark Sabat(VP, Medicinal Chemistry)inKate Stafford(VP, Machine Learning)in
Board seatAdam SeabrookRobert Mittendorff· per SEC Form D
Co-investorsB Capital GroupColorcon VenturesDCVC (Data Collective)Dolby Family VenturesNEXT CanadaY Combinator+12 more
4AM is a skincare brand offering all-in-one products designed to replace multi-step routines for people with busy, low-maintenance lifestyles.
ConsumerDirect to ConsumerWellness & Fitness
SabrinaJade
Co-investorsCAVU Consumer PartnersType Capital
Star Catcher builds a space-based power grid that uses optical power beaming to transmit concentrated solar energy directly to satellites' existing solar arrays, increasing their available power without hardware modifications.
Deep TechEnergySpace TechJacksonville, US
Michael Snyder(Executive Officer, Director)inAndrew Rush(Executive Officer, Director)inBryan Lyandvert(Founder)inNathan O'Konek(Executive Officer)in
BoardDavid Rothzeid(Director)inJeff Johnson(Director)
Co-investorsAurelia FoundryB Capital GroupFJ LabsGreatPoint VenturesInitialized CapitalMVP Ventures+8 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.