| 1 | TRH | Airmark Aviation, Inc. | Callsign: Transtar, | USA | AVCODES |
| 2 | TRH | Transavia Holland B.V. | IATA: HV, Callsign: Hotel Victor, ICAO callsign changed to Transavia | NL | AVCODES |
| 3 | TRH | Transavia Holland B.V. | IATA: HV, Callsign: Transavia, ICA designator changed to TRA. ICAO callsign changed from Hotel Victor | NL | AVCODES |
| 4 | TRH | Turukhan Airlines | Callsign: Turukhan, | RUS | AVCODES |
| 5 | TRH | Airmark Aviation | | | ICAO1 |
| 6 | TRHA | TRACE TRUCKING INC | | | SCAC4 |
| 7 | TRHD | TRANSPORT ROGER HALDE INC | | | SCAC4 |
| 8 | TRHG | TERRACE HEIGHTS TRUCKING INC | | | SCAC4 |
| 9 | TRHI | TRX INC | | | SCAC4 |
| 10 | TRHO | TRANSPORT RAYMOND HUDON | | | SCAC4 |
| 11 | TRHR | TRANSPORT R H REDIKER 2000 LTEE | | | SCAC4 |
| 12 | TRHS | TEXAS ROADRUNNER HOTSHOT LLC | | | SCAC4 |
| 13 | TRHU | TRITON CONTAINER INTERNATIONAL LTD | | BM | BIC |
| 14 | TRHU | Triton Container International | | | RSRV |
