OpenDataPhilly is a portal that provides access to over 175 data sets, applications, and APIs related to the Philadelphia region. Built by Azavea, a Philadelphia-based Geographic Information Systems (GIS) software firm, it is now operated by the Philadelphia Public Interest Information Network, a Philadelphia-based non-profit organization. OpenDataPhilly is based on the idea that providing free and easy access to data information encourages better and more transparent government and a more engaged and knowledgeable citizenry.