This is a list of the world's bus operating companies listed by country, with countries placed alphabetically by continent and country.
Wherever possible, each country's bus operating companies are divided by the nature of their operations. Operations may be logically divided by defining attributes such as:
This list includes companies operating now. The list does not include bus manufacturers or repairers. It contains mostly public transit operators.
Refer to Bus companies in Ontario
India has several bus operators. Some are state run while others are run by municipal bodies or private companies.
There are dozens of transport companies in Bangladesh. BRTC is the only state-owned bus company; others are privately owned and run. Other large, well-known companies are included below that operate nationally and internationally.
Every state has its own bus operators in Malaysia.
Translink
The following services are all part of the South East Queensland Translink program.
Bus Queensland
Adelaide Metro service providers
There are no nationwide bus operators in Russia, as passenger operations have been traditionally conducted by the Russian Railways. Despite that, there are local bus operators (privately or state-owned) usually called PATP or ATP (literally passenger auto-transportation enterprise or auto-transportation enterprise) which send their buses to Moscow, St. Petersburg, or neighboring cities. There is no unified database of schedules of such routes, and tickets can be purchased on site only.
Public municipal transit
*[[Izletnik Celje]]] *[[Avrigo Nova Gorica]]]