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.
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.