The fastest way to get a Taxi Cab in LA. GPS based location detector, Under a minute, you can have all the necessary information about your trip sent and without delay, a taxi cab from United Taxi will be speeding away to pick you up. Los Angeles-based Taxi Service, United Taxi is one of the largest and most trusted Taxi Companies in town. Serving most of the greater LA including Beverly Hills and West Hollywood, San Fernando Valley, Burbank, Culver City, Long Beach, Pasadena, South Bay and Santa Clarita.