| 1 | HTM | HTM Jet Service GmbH & Co KG | Callsign: Helitravel, Name changed to HTM Helicopter Travel | D | AVCODES |
| 2 | HTM | HTM Helicopter Travel | Callsign: Helitravel, Name changed from HTM Jet Service GmbH & Co KG | D | AVCODES |
| 3 | HTMA | HARTMANS TRUCKING COMPANY INC | | | SCAC4 |
| 4 | HTMC | HESS, T M LLC | | | SCAC4 |
| 5 | HTMF | HEMATITE MANUFACTURING | | | SCAC4 |
| 6 | HTML | HATSU MARINE LIMITED | | | SCAC4 |
| 7 | HTMM | HER-MAR TRANSPORT | | | SCAC4 |
| 8 | HTMR | HOLM, J & SONS INC | | | SCAC4 |
| 9 | HTMS | HOLLAND TRANSPORTATION MANAGEMENT S | | | SCAC4 |
| 10 | HTMU | HANSEN & TIDEMANN, INC. | | | PWRC |
| 11 | HTMU | Hansen and Tidemann | | | RSRV |
| 12 | HTMU | HANSEN & TIDEMANN INC. | | | SCAC4 |
