Taxi's Hamburgers Taxi's Restaurants International Inc. owns and operates 6 fun and exciting Taxi's Restaurants in the San Francisco Bay Area. In addition, we are the franchisor of Taxi's Hamburgers throughout California and nine western states. Taxi's has taken the casual dining restaurant concept and successfully blended it into smaller quick service restaurants. Taxi's created a new segment in the restaurant industry, Fast Casual. The concept incorporates high quality food and friendly, prompt, service, in an exciting and creative themed atmosphere.