| 1 | DOS | Icec Tour Ltd. | | CZ | AVCODES |
| 2 | DOS | U.S. Department of State, International Narcotics and Law Enforcement Affairs (INL Air Wing) | Callsign: Dosair, | USA | AVCODES |
| 3 | DOS | DELAWARE OTSEGO CORP. | | | PWRC |
| 4 | DOS | Delaware Otsego Corp. | | USA | TRAFFIC |
| 5 | DOSC | DALIAN OCEAN SHIPPING COMPANY | | | SCAC4 |
| 6 | DOSE | DOUBLE 'S' EXPRESS, INC | | | SCAC1 |
| 7 | DOSF | DOSS-FUELCO INC | | | SCAC4 |
| 8 | DOSG | DALE OLD SPECIALIZED HAULING | | | SCAC4 |
| 9 | DOSK | DOSKOVA, TANYA FINE ART | | | SCAC4 |
| 10 | DOSL | DYNAMITE OILFIELD SERVICES | | | SCAC4 |
| 11 | DOSR | TRANSPORTE DE RIOS | | | SCAC3 |
| 12 | DOSR | DOSS, RICH INC | | | SCAC4 |
| 13 | DOSU | DYNAMIC OCEAN SHIPPING LINE UK LTD | | | SCAC4 |
| 14 | DOSW | DELTA OCEAN SPECIAL MARITIME ENTERP | | | SCAC4 |
