Cal Hacks 4.0 Berkeley, CA, USA The worlds largest collegiate hackathon held at UC Berkeley $172,386 in prizes Oct 6 – 8, 2017 719 participants
TreeHacks 2017 Stanford, CA, USA Come hack with us in sunny, beautiful California! $73,540 in prizes Feb 17 – 19, 2017 373 participants
SB Hacks III Isla Vista, CA, USA Project Submission $5,000 in prizes Jan 21 – 22, 2017 134 participants
Cal Hacks 3.0 Berkeley, CA, USA Cal Hacks - The Biggest Collegiate Hackathon in the World $49,930 in prizes Nov 9 – 13, 2016 717 participants
SB Hacks II Isla Vista, CA, USA SB Hacks is an event in which hundreds of talented programmers compete for 36 hours to make amazing projects. The projects are then judged by tech professionals from the industry and from academia. $6,250 in prizes Apr 22 – 24, 2016 66 participants
HackingEDU San Mateo, CA, USA Invent the Future $100,800 in prizes Oct 22 – 25, 2015 613 participants
HSHacks II San Jose, California, USA The Original High School Hackathon is Back. $38,050 in prizes Feb 7 – 8, 2015 372 participants
Hacking Generation Y Redwood City, CA, USA Today's youth's hacking tomorrow's future. $74,700 in prizes Jan 24 – 31, 2015 228 participants
Tino Local Hack Day Cupertino, CA, USA Cupertino High School's premier Hackathon. Show us all you got and code like never before. $455 in prizes Dec 6, 2014 21 participants
Cal Hacks Berkeley, CA, USA Cal Hacks is the first major collegiate hackathon in the Bay Area. Non-monetary prizes Oct 3 – 5, 2014 473 participants
HSHacks San Jose, California, USA A Huge Hackathon for High Schoolers! No experience needed! Join us at Paypal HQ in the Silicon Valley March 8-9! $2,250 in prizes Mar 8 – 9, 2014 308 participants