Laidlaw International, Inc.
- Holding company for North America’s largest providers of school, public transit, and inter-city bus transportation services, including Greyhound and Laidlaw Educational and Transit divisions. Corporate news and information.
- http://www.laidlaw.com/

American Bus Association (ABA)
- Represents approximately 950 motorcoach and tour companies in the United States and Canada.
- http://www.buses.org

Trailways.
- Association of independent motorcoach companies providing public scheduled route, charter and tour transportation services in the United States and Canada.
- http://www.trailways.com/

Greyhound Bus Line
- Fares, schedules, and ticketing for more than 3,700 destinations across North America.
- http://www.greyhound.com/