Uber - Uber is a website and mobile app that allows you to get a ride similar to a taxi service from your phone.
Car2Go - Hourly car rental without designated pickup / drop off
Lyft - Lyft is a mobile app that lets you get rides from pace to place for a fee. If you want to be a Lyft driver, you can go to their website and easily sign up to start driving for them. Read more about Lyft.
SocialCar - SocialCar is the first peer to peer car rental service operating in Spain.
GO-JEK - Home & Family and Online Services
ZipCar - ZipCar is a free mobile app that connects you with rental vehicles just about anywhere in the world. You can instantly reserve a vehicle, and even unlock it directly from the app.