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
TreeHacks 2025 Stanford, CA, USA The largest collegiate hackathon in the U.S. $255,600 in prizes Feb 14 – 16, 2025 827 participants
TreeHacks 2024 Stanford, CA, USA The largest collegiate hackathon in the U.S. $213,100 in prizes Feb 16 – 18, 2024 1124 participants
Square Unboxed Hackathon Online Build or extend an app with new features using Square’s new Bookings API release, Cash App Pay, Checkout API, or Terminal API. $85,000 in prizes Winners announced 808 participants
Azure AI Hackathon Online Build AI-powered apps with pre-trained models or create your own machine learning models $25,500 in prizes Winners announced 1917 participants
AngelHacks 2.0 Online Choose your workshop, speed-meet your team, and have ALL the tools needed for your project! $14,000 in prizes Winners announced 880 participants
CruzHacks 2021 Online CruzHacks brings together a diverse and inclusive group of students and professionals to develop innovative solutions to solve real-world challenges. $54,170 in prizes Winners announced 116 participants
HackTable2020 Online Event is now closed - visit hacktable.everstem.org for new events $89,850 in prizes Winners announced 319 participants
Facebook Hackathon: AI Online Build AI voice interactions with Wit.ai $7,000 in prizes Winners announced 2377 participants