Marshall Bus was an English builder of bus and coach bodies based in Cambridge. It was owned by the Marshall Group until sold in a management buyout in 2001.

Mulliners Limited of Birmingham was a British coachbuilding business in Bordesley Green, with factories in Bordesley Green and Cherrywood Roads. It made standard bodies for specialist car manufacturers. In the 19th century there were family ties with founders Mulliners of Northampton and the businesses of other Mulliner brothers and cousins but it became a quite separate business belonging to Herbert Mulliner.