datahack Austin, TX, USA Use data to make a social impact $7,250 in prizes Apr 21, 2018 23 participants
Amazon Alexa Skills Challenge Online You code, Alexa comes to life. Create new Skills for Alexa, the brain behind Amazon Echo. $43,620 in prizes Winners announced 4430 participants
EARTHACK Dallas, TX, USA The world's largest environmental hackathon, hosted at Earth Day TX. $55,200 in prizes Apr 21 – 23, 2017 255 participants
