Hack for Change Louisville Louisville, Kentucky, USA Hack for Change Louisville is being held as the city's formal National Day of Civic Hacking event. Non-monetary prizes May 28 – Jun 2, 2013 2 participants
NYC BigApps 3.0 Online New York City challenged software developers to create apps that use city data to make NYC better. $50,000 in prizes Winners announced 633 participants
NYC BigApps Ideas Online New York City challenged the public to share ideas for apps for residents, businesses, and visitors. $5,000 in prizes Winners announced 354 participants
NYC BigApps 2.0 Online To help New York City become more transparent, accessible, and accountable. $40,000 in prizes Winners announced 83 participants
NYC BigApps Online In the inaugural NYC BigApps challenge, the City of New York challenged software developers to create apps to improve NYC. $20,000 in prizes Winners announced 81 participants