| 1 | DLN | Dalmatian d.o.o. | Callsign: Dalmatian, Ceased trading 24 June 2014. Operations never started. | HR | AVCODES |
| 2 | DLNC | D & L TRANSPORT LLC | | | SCAC4 |
| 3 | DLNL | DALEY, NOEL RACING STABLES LLC | | | SCAC4 |
| 4 | DLNM | DELANEY MOVING AND STORAGE INC | | | SCAC4 |
| 5 | DLNN | D LINES, INC | | | SCAC1 |
| 6 | DLNN | D LINES INC | | | SCAC4 |
| 7 | DLNO | DEKLEYNE, JOHN | | | SCAC4 |
| 8 | DLNR | DILLNER, W J TRANSFER CO | | | SCAC4 |
| 9 | DLNT | DILLON TRANSPORTATION LLC | | | SCAC4 |
| 10 | DLNV | DALNAVE NAVIGATION INC | | | SCAC4 |
| 11 | DLNW | GREAT WESTERN RAILWAY OF COLORADO [DENVER, LARAMIE AND NORTH WESTERN RAILROAD} | | | PWRC |
| 12 | DLNW | Denver, Laramie and North Western Railroad (Great Western Railway of Colorado) | | | RSRV |
