- Bahamas Paradise Cruise Lines
- Balearia
- Ballerina
- Baltic Express Line
- Baltic Line
- Baltic Scandinavian Lines
- Bastø Fosen
- Belomorsk-Murmansk Regular Shipping Line Partnership
- Bequia Express
- Birka Cruises
- Bjørklids Ferjerederi
- Black Sea Shipping Company
- BLASCO
- Blidösundsbolaget AB
- Blu Jet
- BluNavy
- BlueBridge
- Blue Line
- Blue Star Ferries
- Bluferries
- Bluvia
- Boreal Sjø AS
- BornholmerFærgen
- Bornholmslinjen
- Bornholmstrafikken
- Bridgemans
- British and North American Royal Mail Steam Packet Company
- Brittany Ferries
- Budi Samudera Perkasa PT
- Buquebus