Hackathons for founders in San Francisco

18 upcoming hackathons for founders & investors in San Francisco. Curated events in the US.

September through October is the densest stretch of the SF founder year. YC's S26 Demo Day lands Sep 10, invite-only and still the benchmark every other accelerator aims at. SF Tech Week starts Oct 5, a16z-led and in its fourth year, spreading across investor sessions, hackathons, and dinners citywide. The AI Conference (Sep 29) and TechCrunch Disrupt (Oct 13) sit between those two. South Park Commons runs a post-training forum Sep 9, and Antler hosts an SF After Dark hackathon Sep 17.

One email every Monday: the San Francisco events worth planning around. Hand-filtered, with the fine print. Nothing else, ever.

US August 2026
Type
All Meetup Conference Demo Day Hackathon Pitch Workshop Dinner
Topic
AI
18 events

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