| 1 | DBR | Dutchbird | IATA: 5D, Callsign: Dutchbird, | NL | AVCODES |
| 2 | DBR | LLC "Dobrolet" | IATA: QD, Callsign: Dobrolet, Ceased opeations on 04 August 2014. Founded in October 2013. Low cost subsidiary of Aeroflot. | RUS | AVCODES |
| 3 | DBR | Dutchbird | | | ICAO1 |
| 4 | DBRA | DOUBLE R TRANSPORT | | | SCAC4 |
| 5 | DBRB | DRO BROKERAGE | | | SCAC4 |
| 6 | DBRBM | DB Regio Bus Mitte | | D | TRAFFIC |
| 7 | DBRBO | DB Regio Bus Ost | | D | TRAFFIC |
| 8 | DBRC | DUBEAU, RAY TRUCKING INC | | | SCAC4 |
| 9 | DBRD | DELATTRE, BRUNO | | | SCAC4 |
| 10 | DBRH | DBR INC | | | SCAC4 |
| 11 | DBRI | Dominion Bridge | | CDN | TRAFFIC |
| 12 | DBRL | DUFFY BOX & RECYCLING INC | | | SCAC4 |
| 13 | DBRM | DONKIN, BRYAN RMG CANADA LTD | | | SCAC4 |
| 14 | DBRN | DBR TRANSPORT | | | SCAC4 |
| 15 | DBRR | DOUBLE R TRANSPORT INC | | | SCAC4 |
| 16 | DBRS | DANNEBROG REDERI AS | | | SCAC4 |
| 17 | DBRT | DOUBLE R TRUCKING INC | | | SCAC4 |
