World's Largest Black Bus Company. Integration Destroyed It." The remarkable true story of Winston-Salem's Safe Bus Company (1926-1972), which became the largest Black-owned transportation company in the world. In 1926, city trolleys only served white neighborhoods, forcing Black tobacco workers to walk miles to work. Twenty-two Black entrepreneurs pooled $100,000 in life savings to merge 35 competing jitneys into one company. By 1935, Safe Bus transported 8,000 passengers daily with 80 drivers