“Backs conviction and radical ideas at the intersection of intelligence, autonomy and infrastructure. A family-office-style holding company, not a classic fund, with 120+ portfolio companies and LP positions in 60+ other funds.”
Sector split covers the eight named portfolio companies visible on bigbrain.holdings against a stated total of 120+; treat the split as a sample, not the full book. Stage is not explicitly published; the array here reflects the fund's own description of "concentrated, long-term positions" spanning seed through growth rather than a stated policy. Chain split covers only the four companies whose chain we could verify (Grass on Solana, Wormhole multichain, Flashbots and Panoptic on Ethereum).
Big Brain Holdings, usually shortened to BBH, describes itself less as a classic venture fund and more as a holding company: it names over 120 portfolio companies, LP positions in more than 60 other funds, and exposure across 40-plus countries. The thesis is stated as backing "conviction and radical ideas" at the intersection of intelligence, autonomy and infrastructure, language that maps closely onto AI x crypto, decentralized compute and physical infrastructure networks.
The eight companies named on the site give a reasonably clear picture even against the much larger total. Grass, an AI-training-data DePIN network on Solana, was an early BBH position and one of the defining Solana DePIN breakouts of the last cycle. Hyperbolic and Ritual are AI x crypto compute and inference plays. Aethir is DePIN compute. Wormhole and Flashbots are core cross-chain and MEV infrastructure. Panoptic is a DeFi options protocol. Exo Labs rounds out the AI side.
Because BBH is an LP in 60-plus other funds, it sits structurally close to a large share of the funds in this directory, which means a founder who already has a relationship with one of those funds may be able to get a warm BBH introduction rather than cold-applying. Absent that, the site's contact form, with a dedicated "Investment" category, and a listed email are the verified cold path.
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Individual partner names were not verified on the site in this session. Use the site's contact form or hello@bigbrain.holdings; the fund did not surface named investment staff at last check.