Startup Idea : app that simplifies travelling through cities

I am writing to you because I am looking for an experienced company with which I could cooperate on spreding my application.I have got TakeMeApp - Android App on Google Play (still refining). It simplifies travelling through towns and cities.The idea of this app is that people, who are rigistered, share themselves into two groups: those who have got cars and those who need a ride (a group can be changed). Registered users allow automatically the access to gps. Active users are seen on a map. It means that one group sees only the second one. The area of the map with marked users is around 15 km (it can be changed). A passenger activates this app and sees on the map all the users with cars that are in his/her area. She or he chooses one and asks about the possibility of a ride. The costs depend on users - they set a price individually.This application is ideal for students and tourists visiting big cities.With good advertisement can be more popular than uber