IrvineHacks 2026 Irvine, CA, USA Create. Connect. Inspire. $10,200 in prizes Feb 27 – Mar 1, 2026 388 participants
UC Berkeley AI Hackathon 2025 Berkeley, CA, USA Come join us at the world's largest AI Hackathon hosted by Cal Hacks! $41,564 in prizes Jun 21 – 22, 2025 1036 participants
FullyHacks 2025 Fullerton, CA, USA CSUF's premier 24-hour hackathon, uniting 300+ students to build impactful projects, network with industry pros, and compete for prizes. Non-monetary prizes Apr 12 – 13, 2025 192 participants
DiamondHacks 2025 San Diego, CA, USA San Diego's Fastest Growing Hackathon $2,853 in prizes Apr 5 – 6, 2025 302 participants
IrvineHacks 2025 Irvine, CA, USA Create. Connect. Inspire. $7,509 in prizes Jan 24 – 26, 2025 290 participants
Hack the Planet Danville, CA, USA Building Solutions for a Brighter Tomorrow $5,425 in prizes Apr 27, 2024 38 participants
