Tech to Treasure Hackathon San Jose, CA, USA Code for a greener future. $450 in prizes Mar 3 – 10, 2027 82 participants
Cal Hacks 13.0 San Francisco, CA, USA This year's Cal Hacks is presented by Anthropic, Annapurna Labs, Spacetime, and Hyphenate! Together we'll assemble in SF for a weekend of hacking, friendship, and crazy ideas. $204,408 in prizes Oct 23 – 25, 2026 1917 participants
Synthesis Hacks Sunnyvale, CA, USA A hackathon for bay area highschoolers at Google's campus! $398 in prizes May 23, 2026 92 participants
Los Altos Hacks X Sunnyvale, CA, USA The world's largest high school hackathon. Non-monetary prizes Apr 11 – 12, 2026 278 participants
Los Altos Hacks 8 Sunnyvale, CA, USA The world's largest high school hackathon $4,134 in prizes Apr 6 – 7, 2024 216 participants
