This is the Official mobile app of Union Cab of Madison, in Madison, Wisconsin. Book a ride in as few as 3 clicks! Use the app and skip the telephone queue, which is nice during peak hours. See where your taxi is with live tracking. Get a notification when the cab is near. Set up future rides. Save your common locations for quick access. The GPS on your mobile device gives us your location so you don’t have to enter it. You can fine tune it on the map, too. Type a note for the driver to help them find you. Call us straight from the app by tapping “Call Operator”. Use this for parties larger than 4, or for special needs or requests. Union Cab operates the largest taxi fleet in Madison. Our experienced staff and drivers provide over 400,000 rides annually. Drivers must complete the city approved disability & sensitivity training program, our defensive driving course, and pass an MPD driver background check. Union Cab is a worker cooperative; each worker shares a vested interest as a member owner. Our Mission: “To create living wage jobs in a safe, humane, & democratic environment while providing quality transportation services.