bryan altman

i invest as an angel and build startups, based in toronto but often in san francisco or montreal. i founded chainvine, a slow-backed marketing software company, and built setter — a sequoia-backed home-services marketplace we scaled to ~$12m/year and we sold to thumbtack. earlier i was at mckinsey. these days i build AI products, help others build theirs as a consultant/advisor, and back early-stage founders.

building. some projects: teahose, an automated podcast, newsletter & paper summarizer with a startup-intelligence layer · endless reply, 24/7 AI customer service for SMB service businesses · forktab, open-source trip expense-splitting for friends. earlier i built orbit.city, a solar-powered campervan from an empty mercedes cargo van. 3,201 contributions on github in the last year (07/26) — recent: claude-research-skill · due-diligence-skill.

investing. i angel invest and have done so in 15+ companies like — flex, causal labs, foundry robotics, alloy river, power, paradigm, rocketable, lotly, kiro health — and i led SPVs into rocket doctor (now public, TSX:AIDR) and participated in a confidential series b buyout. across the book that's worked out to 5.6× tvpi at a 61% irr, over an average 2.7-year hold (06/26).

thinking. i write maybetheway, and i recently put together claude code 101 for founders, a hands-on intro to building with claude code.

fitness. outside of work i race and train — 7,322 km logged running on strava (07/26), at a 64 vo₂ max (06/26). i run ultramarathons, compete in 70.3 triathlons, and frequent barry's. i also love to kitesurf, and have chased wind in tarifa, mui ne, playa del carmen, el medano, paros, sardinia, aruba, and more.

say hello. if you're fundraising — particularly in physical AI or deeptech — or if you could use my help in some way, drop me a note.