HackDavis 2026 Davis, CA, USA // create for social good_ Non-monetary prizes May 9 – 10, 2026 429 participants
Citrus Hack 2026 Riverside, CA, USA Mission Accepted | Citrus Hack XI at UC Riverside Non-monetary prizes Apr 18 – 19, 2026 140 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
BitHacks 2025 Irvine, CA, USA UCI's first ever Embedded Systems hackathon! With a focus on hardware projects, come out and show us what you got! $4,457 in prizes Apr 11 – 13, 2025 105 participants
DiamondHacks 2025 San Diego, CA, USA San Diego's Fastest Growing Hackathon $2,853 in prizes Apr 5 – 6, 2025 302 participants
HackPrinceton Spring 2025 Princeton, NJ, USA Collaborate and build out brilliant, innovative, and impactful ideas $1,050 in prizes Mar 28 – 30, 2025 264 participants
IrvineHacks 2025 Irvine, CA, USA Create. Connect. Inspire. $7,509 in prizes Jan 24 – 26, 2025 290 participants
