| 1 | TSH | Trans-Sahel | Callsign: Trans-Sahel, | RMM | AVCODES |
| 2 | TSH | Regional 1 Airlines Ltd. | Callsign: Transcanada, Name changed to R1 Airlines. | CDN | AVCODES |
| 3 | TSH | R1 Airlines Ltd. | Callsign: Transcanada, Name changed from Regional 1 Airlines Ltd. | CDN | AVCODES |
| 4 | TSH | Regional 1 | | | ICAO1 |
| 5 | TSH | Tshiuetin Rail Transportation, Inc. | 7/2005 | | NAKINA |
| 6 | TSH | TSHIUETIN RAIL TRANSPORTATION, INC. | | | PWRC |
| 7 | TSH | TSHIUETIN RAIL TRANSPORTATION INC | | | SCAC4 |
| 8 | TSH | Tshiuetin Rail Transportation, Inc. | | USA | TRAFFIC |
| 9 | TSHA | TRANSPORTES SALINAS HINOJOSA | | | SCAC4 |
| 10 | TSHC | THAVMA SHIPPING CORPORATION | | | SCAC4 |
| 11 | TSHD | TS EXPRESS LOGISTICS INC | | | SCAC4 |
| 12 | TSHE | TRANSPORTE SANCHEZ INC | | | SCAC4 |
| 13 | TSHH | TRANSPORTES H & H | | | SCAC4 |
| 14 | TSHI | TRANSPORT P HACHE INC | | | SCAC4 |
| 15 | TSHL | TRANSPORTES SHIELS | | | SCAC4 |
| 16 | TSHR | TRANSPORTES HUERTA | | | SCAC4 |
| 17 | TSHU | TSB Brasil Ltda – ME | | BR | BIC |
| 18 | TSHX | Tshiuetin Rail Transportation, Inc. | 7/2005 (not listed) | | NAKINA |
| 19 | TSHX | *TEXAS STATE RAILROAD HISTORICAL PARK | | | PWRC |
| 20 | TSHX | +TSHIUETIN RAIL TRANSPORTATION, INC. | | | PWRC |
| 21 | TSHX | Tshiuetin Rail Transportation | | | RSRV |
