The company's first route began in Hibbing, Minnesota in 1914, and the company adopted the Greyhound name in 1929. Since October 2007, Greyhound has been a subsidiary of British transportation company FirstGroup, but continues to be based in Dallas, Texas, where it has been headquartered since 1987. Greyhound and its sister companies in FirstGroup America are the largest motorcoach operators in the United States and Canada.
Greyhound operates 123 routes serving over 2,700 destinations across the United States. Greyhound's scheduled services compete with the private automobile, low-cost airlines, Amtrak, and other intercity coach bus companies.
According to wikipedia