B
- Bowmans Coaches (Mull)
- Bowyers Coaches, Peterchurch
- BR Shreeve & Sons Ltd (Leiston)
- Brackley Cars
- Bradies
- Bradshaw's Executive Travel
- Brady's Mini Travel
- Brass's Buses
- Brecks International
- Brecon Mountain Railway
- Bremners Coaches
- Bretherton Gold Line Tours
- Brian Jones Coaches
- Briggs Coaches
- Bright Bus (MAS Special Engineering Ltd)
- Brighton & Hove Bus and Coach Company
- Brijan Tours
- Bristol Ferry Boat Company
- Brodyr James
- Bromyard Omnibus Co.