| 1 | DBJ | Duchess Of Brittany (Jersey) Ltd. | Callsign: Duchess, | GB | AVCODES |
| 2 | DBJ | Duchess of Britany (Jersey) Limited | | | ICAO1 |
| 3 | DBJ | De Bornholmske Jernbaner | 1935 - 1968 | DK | jernbanen.dk |
| 4 | DBJ | De Bornholmske Jernbaner | 1935 - 1968 | DK | TRAFFIC |
| 5 | DBJG | DBJ TRUCKING CO INC | | | SCAC4 |
| 6 | DBJJ | DOUBLE J TRUCKING COMPANY | | | SCAC4 |
| 7 | DBJL | DOBBS, J L INC | | | SCAC4 |
| 8 | DBJP | DOUBLE JJ TRANSPORTATION | | | SCAC4 |
| 9 | DBJR | DOUBLE J TRANSPORT INC | | | SCAC4 |
| 10 | DBJU | DENBA JAPAN CO., LTD. | | J | BIC |
