Los Altos Hacks X Sunnyvale, CA, USA The world's largest high school hackathon. Non-monetary prizes Apr 11 – 12, 2026 279 participants
VikingHacks 2026 Fremont, CA, USA Viking Hacks is Irvington High School's very own annual hackathon, bringing students from around the bay to build innovative projects and present their work to the community. Non-monetary prizes Mar 28, 2026 121 participants
Deep Agents Hackathon San Francisco, CA, USA We’ve stacked real infra and real AI so your hack ships as a product, not a slide. In one sprint, build agents, copilots, and autonomous systems that actually work end to end. $43,901 in prizes Mar 27, 2026 154 participants
LancerHacks IX Mountain View, CA, USA LancerHacks IX is the ninth annual twelve-hour hackathon. This year, LancerHacks will take place in person from 7:45 AM to 10 PM on a Saturday March 21, 2026. Non-monetary prizes Mar 21, 2026 43 participants
BISV Hacks 2026 San Jose, CA, USA Let's build a better world, one hack at a time. $800 in prizes Mar 8, 2026 138 participants
BullHacks III Ross, CA, USA Create websites and apps around a theme that will be announced at the hackathon! $1,000 in prizes Mar 1, 2025 – Feb 28, 2026 7 participants