/Investor DB

Capital B Private Holdings — 2025 Investments

2 investments dated 2025 · listed companies and verified rows first · show all

Lightning AIlightning.aiin𝕏Dec 2025

Lightning AI, creator of PyTorch Lightning, runs an end-to-end AI development cloud and merged with GPU provider Voltage Park in 2026.

San Francisco, US

William Falcon(Founder)inSaurabh Giri(Executive Officer)inOzan Kaya(Executive Officer, Director)Luca Antiga(Founder)

BoardAmit Mukherjee(Director)inSam Yagan(Director)in

Co-investorsBain Capital VenturesCisco InvestmentsCoatue ManagementIndex VenturesK5 GlobalSherpalo Ventures+23 more

NewLimitnewlimit.com𝕏May 2025

NewLimit develops epigenetic reprogramming medicines to extend healthspan and treat age-related diseases at the intersection of computer science and biotechnology.

AI & Machine LearningBiotechLongevitySouth San Francisco, US

Brian Armstrong(Founder)inBlake Byers(Founder)inJacob Kimmel(Founder)inMichael Polansky(Executive Officer)

BoardZavain Dar(Director)in

Co-investorsS32Valor Equity Partners8VCAbstract Venturesage1Beyond Capital+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.