List of bus operating companies

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. It does not include bus manufacturers or repairers. It contains mostly public transit operators.
The Americas.
Canada.
Ontario.
Refer to Bus companies in Ontario
Asia.
India.
India has several bus operators. Some are privately run while others are run by state governments municipal bodies or private companies. State government buses ply not only in their states but also in neighbouring states. Municipal body buses ply in their own city as well as in neighbouring cities or towns. Here only list of government operated buses are there.
Malaysia.
Every state has its own bus operators in Malaysia.
Australasia.
Australia.
Queensland.
Translink
The following services are all part of the South East Queensland Translink program.
Europe.
Russia.
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.