xAI Hackathon 2025 Palo Alto, CA, USA Join us for a 24-hour hackathon to build the next generation of AI applications Non-monetary prizes Dec 7, 2025 352 participants
TreeHacks 2024 Stanford, CA, USA The largest collegiate hackathon in the U.S. $213,100 in prizes Feb 16 – 18, 2024 1124 participants
TreeHacks 2023 Stanford, CA, USA Stanford University's Premier Hackathon - Join us to build apps, machines, and communities on Stanford Campus. $133,080 in prizes Feb 17 – 19, 2023 1033 participants
PennApps XXII Online Come soar to greater heights with PennApps! $41,159 in prizes Winners announced 316 participants
HackCMU Online Annual hackathon organized by ACM@CMU Non-monetary prizes Winners announced 88 participants
PennApps XXI Online The Original College Hackathon: Now Online! $49,069 in prizes Winners announced 588 participants
Los Altos Hacks IV Sunnyvale, CA, USA Los Altos's fourth annual high school hackathon $2,179 in prizes Mar 23 – 24, 2019 222 participants
TinoHacks II Fremont, CA, USA TinoHacks II, the second edition of Cupertino High School's largest hackathon $39,340 in prizes Apr 21 – 22, 2018 66 participants
Whose Hacks? Our Hacks! Berkeley, California, USA Creating innovative solutions to the biggest challenges in energy and climate. $2,000 in prizes Nov 17 – 18, 2017 68 participants
GunnHacks 4.0 Palo Alto, CA, USA Make, Build, Create & Learn. It’s GunnHacks 4.0, Gunn’s 24-hour high school hackathon. Non-monetary prizes Oct 27 – 28, 2017 74 participants
Mountain View Hacks Santa Clara, CA, USA 1 Day, 120 Hackers - Bay Area High School Hackathon $14,910 in prizes Oct 21, 2017 99 participants
WilHacks Santa Clara, CA, USA A free 24 hour event in which any high school student can attend and create a computer based application. $10,120 in prizes Oct 13 – 14, 2017 93 participants
MobileMonday Presents: Mobile, Bots and API First Hackathon with IBM San Francisco, CA, USA API-First Hackathon with IBM Watson | LoopBack | Bluemix $8,600 in prizes Sep 8 – 10, 2017 110 participants
TinoHacks 2017 Fremont, CA, USA TinoHacks, a project of Hacker Fund, is a two day long, 350 person hackathon hosted by Cupertino High School students. $19,200 in prizes Apr 15 – 16, 2017 118 participants
HSHacks III Fremont, CA, USA 1000-student, 24-hour high school hackathon in the Bay Area $36,691 in prizes Mar 25 – 26, 2017 275 participants
Los Altos Hacks II Redwood City, CA, USA Los Altos Hacks II is here! $1,750 in prizes Feb 4 – 5, 2017 185 participants