The “Tretiy park” public company was founded in 1960. By the early 21st century, the company has become the largest non-governmental transport operator in St. Petersburg. “Tretiy park” includes a parent enterprise, four major divisions in different parts of the city, its own diagnostic station to control the transport condition with 2 German MAHA lines, which maintain all the categories of vehicles. It also provides 5 000 positions of employment. The company takes an active part in charity work providing transport without charge to non-commercial organizations as well as for social events.