TreeHacks 2026 Stanford, CA, USA The largest collegiate hackathon in the US. $1,030,875 in prizes Feb 14 – 15, 2026 1097 participants
Cal Hacks 12.0 San Francisco, CA, USA This year's Cal Hacks is co-hosted by Claude, Fetch AI, AppLovin, and Amazon's Annapurna Labs! Together we'll assemble in SF for a weekend of hacking, friendship, and crazy ideas. $58,100 in prizes Oct 24 – 26, 2025 2164 participants
DubHacks '25 Seattle, WA, USA DubHacks is a tech and entrepreneurship non-profit in Seattle run by students at the University of Washington. $50,000 in prizes Oct 18 – 19, 2025 751 participants
E-Med Hacks Fremont, CA, USA An in-person medical-themed hackathon in Fremont, Bay Area. September 28th @ SFBU Campus! 2k prize pool and several tracks available! $875 in prizes Sep 28, 2024 27 participants
Spring Hacks by Code4TheFuture Online Powered by Code4TheFuture to give beginners an intro to the world of engineering and computer programming. It is a great beginner to intermediate hackathon. Non-monetary prizes Winners announced 2091 participants
Milpitas Hacks Milpitas, CA, USA Create innovative projects for social good while competing for prizes at Milpitas Hacks! Sign up at milpitashacks.com!! $1,610 in prizes May 25, 2024 75 participants
Meta Quest Presence Platform Hackathon 2024 Online Next Generation Quest MR Applications $30,985 in prizes Winners announced 2164 participants
Unite Hack II Oakland, CA, USA Unite Hacks aims to introduce students from ages 14-19 to a wide range of possibilities to create something larger for their community with tech and code $1,100 in prizes Sep 9 – 10, 2023 22 participants