B
- B & E Travel
- B & J Travel
- B & N Coaches
- B Cabs (Allerdale Rural Transport)
- B L Travel
- B S Hayre
- BAA (British Airports Authority)
- BAA - free inter-terminal shuttle train at Gatwick Airport
- Baby Bluestar
- Bagnalls
- Baine's Transport
- Bains Chauffeur Drive
- Bains Coaches
- Bakerbus
- Bakers (Liskeard)
- Bakers Coaches
- Bakers Commercial Services
- Bakers Dolphin
- Bala Lake Railway
- Balls