| 1 | DTM | Deutsches Technikmuseum Berlin | Berlin | D | privat-bahn.de |
| 2 | DTM | DETROIT, TOLEDO & MILWAUKEE RAILROAD CO. | | | PWRC |
| 3 | DTMA | DILETON MARITIME S A | | | SCAC4 |
| 4 | DTMD | DTM DISTRIBUTORS INC | | | SCAC4 |
| 5 | DTME | DANACA TRANSPORT MONTREAL LTEE | | | SCAC4 |
| 6 | DTMI | D T M INC | | | SCAC4 |
| 7 | DTML | DONNELLY TANKER MANAGEMENT LTD | | | SCAC4 |
| 8 | DTMN | D TODO IMPORTACIONES | | | SCAC4 |
| 9 | DTMO | DIRT MOVERS INC | | | SCAC4 |
| 10 | DTMP | DETROIT TOOL METAL PRODUCTS COMPANY | | | SCAC4 |
| 11 | DTMR | Denver Terminal R.R. Co. | added 10/1987; eliminated 4/1990 | | NAKINA |
| 12 | DTMR | Denver Terminal R.R. Co. | added 10/87; eliminated 4/90 | | NRHS |
| 13 | DTMR | DENVER TERMINAL RAILROAD CO. | | | PWRC |
| 14 | DTMT | DUNN THE MOVER LTD | | | SCAC4 |
| 15 | DTMV | DATAMARK DE MEXICO SA DE CV | | | SCAC4 |
