High Quality Content by WIKIPEDIA articles! The Big Bus Company is a London based open-top bus sightseeing company. A family owned company, Big Bus started in central London in June 1991 with 4 buses and now operates over 100 buses worldwide. With its bus livery of Burgundy and cream, the company has since expanded to Dubai, UAE, Hong Kong and Philadelphia, Pennsylvania, USA with a franchise operation in Baltimore, Maryland, USA. The London operation has twice won the 'Visit London' award for Best Sightseeing Tour of the Year in 2001 and 2004.