This routing service for transit app developers aggregates open data on transport information from across the globe. Transitland is described as "a community-edited data service aggregating transit networks across metropolitan and rural areas around the world."
Based in the San Francisco Bay Area, the startup is able to map travel in over 200 regions in the world. Transitland "makes sense of the jumble" by cleaning data sets and uploading them to Mapzen, a public mapping platform. Their latest expansion is a transport planning tool called Turn-by-Turn that encourages people to contribute by adding data streams, sharing apps or offering analysis. The routing service is also in charge of all licensing related to using this data.