DevilsInvent.IoT Tempe, AZ, USA Come delve into the world of internet of things (even if you are new to the field)! $1,000 in prizes Nov 4 – 6, 2016 34 participants
Atlassian Codegeist 2016 Online Atlassian Codegeist Hackathon 2016 $100,000 in prizes Winners announced 901 participants
Knurld Hackathon Online Add cutting-edge Voice Authentication technology to your existing Android, iOS, or IoT application $12,950 in prizes Winners announced 332 participants
Java Tools Challenge Online Extend Visual Studio Team Services for Java Developers or Build a Java App Using Eclipse or IntelliJ Plugins. $80,900 in prizes Winners announced 250 participants
Watson Developer Challenge: Conversational Applications Online Enable natural interaction with your app using a conversational interface powered by the Watson Developer Cloud APIs. $6,750 in prizes Winners announced 426 participants
USDA Innovation Challenge Online Help build a sustainable US food system by putting USDA data into the hands of farmers, researchers, and consumers. $63,000 in prizes Winners announced 312 participants
Create Context-Aware Applications with Alohar Mobile's SDK Online Build context-aware apps that automatically understand where the user is and can trigger certain events $40,000 in prizes Winners announced 185 participants
Opportunity Hack 2015 Arizona Chandler, AZ, USA Build. Connect. Empower. $9,500 in prizes Oct 10 – 11, 2015 209 participants
Hacks for Humanity Tempe, AZ, USA Free 36-hour community hackathon for the social good! Non-monetary prizes Oct 2 – 4, 2015 8 participants
Nexmo & Pubnub Online Mash up Nexmo and Pubnub in this month's developer contest. Non-monetary prizes Winners announced 34 participants
Splunk Apptitude App Challenge Online The Splunk Apptitude App Contest is an online competition designed to find the next big app in big data. We want your big ideas, and will give you more than just bragging rights. We’ll give you cash. $160,170 in prizes Winners announced 172 participants