McDonald's is an American fast food company, founded in 1940 as a restaurant operated by Richard and Maurice McDonald, in San Bernardino, California, United States. It is the world's largest restaurant chain by revenue, serving over 69 million customers daily in over 100 countries across approximately 36,900 outlets as of 2016. According to a BBC report published in 2012, McDonald's is the world's second largest private employer (behind Walmart with 1.9 million employees), 1.5 million of whom work for franchises.