Samsung Makers Against Drought Challenge Online Makers Against Drought $210,500 in prizes Winners announced 547 participants
DCHacks Tysons, VA, USA Washington, D.C.'s Premier High School Hackathon $3,385 in prizes Aug 1 – 2, 2015 116 participants
HackTCNJ 2015 Ewing Township, NJ, USA The bee's knees of hackathons! $2,310 in prizes Feb 28 – Mar 1, 2015 43 participants
PennApps Winter 2015 Philadelphia, PA, USA The nation's chillest college hackathon. January 16-18, 2015 at the University of Pennsylvania. $46,060 in prizes Jan 16 – 18, 2015 595 participants
Design & Hack New York, New York, USA Designers and Developers learn from each other, collaborate, and make awesome things! $1,500 in prizes Nov 14 – 16, 2014 42 participants