Founded in 1902, Lamar Advertising Co. is one of the largest outdoor advertising companies in the United States. The company operates more than 150 outdoor advertising companies and 63 transit companies. It serves customers across the United States, Canada and Puerto Rico through a comprehensive range of outdoor advertising modes, such as billboards, digital billboards, bus shelters, benches and buses. Lamar Advertising Company is also one of America s leading companies in the highway logo sign business, with operations in 19 states and the Province of Ontario, Canada.