| 1 | TS | Air Transat | ICAO: TSC, Callsign: Transat, IATA Prefix: 649, | CDN | AVCODES |
| 2 | TS | Aloha Airlines, Inc. | ICAO: AAH, Callsign: Aloha, IATA designator changed to AQ | USA | AVCODES |
| 3 | TS | Air Benin | ICAO: TSB, Callsign: Air Benin, | DY | AVCODES |
| 4 | TS | Tidewater Southern Ry. Co. | 10/1957-1/1980; eliminated 10/1987 | | NAKINA |
| 5 | TS | Union Pacific R.R. Co. | added 10/1987; eliminated 4/1988 | | NAKINA |
| 6 | TS | Tidewater Southern Ry. Co. | 10/57-1/80; eliminated 10/87 | | NRHS |
| 7 | TS | Union Pacific R.R. Co. | added 10/87; eliminated 4/88 | | NRHS |
| 8 | TS | UNION PACIFIC RAILROAD CO. {TEXAS SOUTHERN RY.; TIDEWATER SOUTHERN RY.] | | | PWRC |
| 9 | TS | Tidewater Southern Railway | | | RSRV |
| 10 | TS | Torralba Soria | | E | TRAFFIC |
| 11 | TS | Tiefbau Sommerfeld GmbH | | DE | VKM |
| 12 | TSA | Transair France | Callsign: Airtraf, | F | AVCODES |
| 13 | TSA | Transair France | | | ICAO1 |
| 14 | TSA | Tidewater Southern Railway Company | Real: TS | USA | TRAFFIC |
| 15 | TSAA | TRIMSA | | | SCAC4 |
| 16 | TSAB | TRANSPORT SABY INC | | | SCAC4 |
| 17 | TSAD | TEAM SALSON AIR DOCK SYSTEMS INC | | | SCAC4 |
| 18 | TSAE | TRANS-STATES EXPRESS, INC | | | SCAC1 |
| 19 | TSAE | TRANS-STATES EXPRESS INC | | | SCAC4 |
| 20 | TSAG | TRANSPORTES SANIGAR | | | SCAC4 |
| 21 | TSAH | TRISA COMERCIAL S A DE C V | | | SCAC4 |
| 22 | TSAI | TSA TRUCKING LLC | | | SCAC4 |
| 23 | TSAL | TRANSPORTES SALINAS | | | SCAC4 |
| 24 | TSAN | TOTAL SITE AND RECOVERY SERVICES LL | | | SCAC4 |
| 25 | TSAO | TRANSPORTES S A O L | | | SCAC4 |
| 26 | TSAQ | TRANSPORT SAMMIK INC | | | SCAC4 |
| 27 | TSAR | TRANSPORTES ALEBRY | | | SCAC4 |
| 28 | TSAU | TRISTAR CONTAINER SERVICES (ASIA) PVT. LTD. | | IND | BIC |
| 29 | TSAU | ROYAL WOLF CONTAINERS | | | SCAC4 |
| 30 | TSAV | TRANSPORTES SAL-AVE S A DE C V | | | SCAC4 |
| 31 | TSAX | All Star Trading | added 1/2006; eliminated 7/2007 | | NAKINA |
| 32 | TSAX | ALL STAR TRADING | | | PWRC |
| 33 | TSAX | ALL STAR TRADING | | | SCAC4 |
| 34 | TSB | Transports Aériens Du Benin (T.A.B.) | Callsign: Air Benin, | DY | AVCODES |
| 35 | TSB | Air Benin | IATA: TS, Callsign: Air Benin, | DY | AVCODES |
| 36 | TSB | Taunusbahn | | D | TRAFFIC |
| 37 | TSB | Taunusbahn | | DE | VKM |
| 38 | TSBAU | TS BAU GMBH | | DE | VKM |
| 39 | TSBB | TRANSPORTES BAR-MON SA DE CV | | | SCAC4 |
| 40 | TSBD | TRIPLE R SCOREBOARDS | | | SCAC4 |
| 41 | TSBE | TRANSPORT SOUTH BEC EXPRESS INC | | | SCAC4 |
| 42 | TSBI | TIGER TRANSPORTATION LLC | | | SCAC4 |
| 43 | TSBJ | TRANTHAM SERVICES INC | | | SCAC4 |
| 44 | TSBK | TRIANGLE MOVERS INC | | | SCAC4 |
| 45 | TSBM | TWO STAR TRUCKING | | | SCAC4 |
| 46 | TSBO | THUNDERBOLT SERVICES LLC | | | SCAC4 |
| 47 | TSBP | TORRES & SONS LLC | | | SCAC4 |
| 48 | TSBR | TUSCOLA & SAGINAW BAY RAILWAY CO. | | | PWRC |
| 49 | TSBR | TSBD CANADA PRODUCTIONS INC | | | SCAC4 |
| 50 | TSBS | TRANSPORT SPECIALISE BP INC | | | SCAC4 |
| 51 | TSBV | TRANSPORTES SIBERIA SA DE CV | | | SCAC4 |
| 52 | TSBY | Tuscola and Saginaw Bay Ry. Co., Inc. | added 1/1978; 1/1980-7/2005; eliminated 4/2007 | | NAKINA |
| 53 | TSBY | Great Lakes Central Rd. | added 4/2007 | | NAKINA |
| 54 | TSBY | Tuscola and Saginaw Bay Ry. Co., Inc. | added 1/78; 1/80-7/2000 | | NRHS |
| 55 | TSBY | GREAT LAKES CENTRAL RR [TUSCOLA & SAGINAW BAY RAILWAY CO.] | | | PWRC |
| 56 | TSBY | Tuscola and Saginaw Bay Railway | | | RSRV |
| 57 | TSC | Air Transat | IATA: TS, Callsign: Transat, IATA Prefix: 649, | CDN | AVCODES |
| 58 | TSC | Air Transat | IATA: TS | | ICAO1 |
| 59 | TSC | TULSA-SAPULPA UNION RAILWAY CO. | | | PWRC |
| 60 | TSCA | TRELLES CONTRERAS, ANA OLAYA | | | SCAC4 |
| 61 | TSCC | TRANSPORT CONSOLIDATION CORP | | | SCAC4 |
| 62 | TSCD | TRI-STATE COMMODITIES INC | | | SCAC4 |
| 63 | TSCF | TRANSPORTES CRUZ CHAVEZ FERNANDEZ | | | SCAC4 |
| 64 | TSCG | TRI-STAR CARGO INC. | | | SCAC4 |
| 65 | TSCH | TSCHUDI SHIPPING COMPANY | | | SCAC4 |
| 66 | TSCI | T.S. EXPEDITING SERVICES, INC. | | | SCAC1 |
| 67 | TSCI | T S EXPEDITING SERVICES INC | | | SCAC4 |
| 68 | TSCL | TYNE SHIPPING COMPANY LIMITED CYPRU | | | SCAC4 |
| 69 | TSCM | TRAILER SERVICE CO INC | | | SCAC4 |
| 70 | TSCN | TRANSCON INC | | | SCAC4 |
| 71 | TSCO | TEXAS TRANSPORT & TERMINAL CO INC | | | PWRC |
| 72 | TSCO | TSC MOVING & STORAGE LTD | | | SCAC4 |
| 73 | TSCR | TEXAS STERLING CONSTUCTION | | | SCAC4 |
| 74 | TSCS | TSC NURSERY SALES LIMITED | | | SCAC4 |
| 75 | TSCT | TRANS COURIER SYSTEMS LLC II | | | SCAC4 |
| 76 | TSCU | TRANS-SERVICE-1 LLC | | UA | BIC |
| 77 | TSCU | THOMPSON SHIPPING CO. | | | SCAC1 |
| 78 | TSCU | TRULSEN SCHIFFAHRT GMBH | | | SCAC4 |
| 79 | TSCW | TROPICAL SHIPPING COMPANY | | | PWRC |
| 80 | TSCW | TROPICAL SHIPPING & CONSTRUCTION CO | | | SCAC1 |
| 81 | TSCW | TROPICAL SHIPPING & CONSTRUCTION CO | | | SCAC4 |
| 82 | TSCX | The Steel Company of Canada, Ltd. | 7/1935-10/1966; eliminated 10/1969 | | NAKINA |
| 83 | TSCX | The Steel Company of Canada, Ltd. | 4/38-10/66; eliminated 10/69 | | NRHS |
| 84 | TSCX | *STEEL COMPANY OF CANADA, LTD. | | | PWRC |
| 85 | TSCX | *RETIRED 08-15-91 ATP (0990) | | | PWRC |
| 86 | TSCY | TAMAI STEAMSHIP COMPANY LTD | | | SCAC4 |
| 87 | TSD | TAF Linhas Aereas S.A. | IATA: R9, Callsign: Tafi, Operations suspeneded on 15 June 2010. AOC revoked by authorities on 07 February 2013. Name changed from T�xi A�reo Fortaleza w.e.f. 17 March 1996. | BR | AVCODES |
| 88 | TSD | TAF-Linhas Aereas | | | ICAO1 |
| 89 | TSD | Transport - Schienen - Dienst GmbH | Kirnitzschtal | D | privat-bahn.de |
| 90 | TSD | Transport-Schienen-Dienst GmbH | | D | TRAFFIC |
| 91 | TSD | Transport-Schienen-Dienst GmbH | | DE | VKM |
| 92 | TSDE | TSF TRANSPORT LLC | | | SCAC4 |
| 93 | TSDF | TSD TRANSPORTATION LP (DIVISION INT | | | SCAC4 |
| 94 | TSDG | TRANSPORTES SG DE MEXICO SA DE CV | | | SCAC4 |
| 95 | TSDH | TSD TRANSPORTATION LP (DIVISION INT | | | SCAC4 |
| 96 | TSDP | THOMAS, DON PETROLEUM INC | | | SCAC4 |
| 97 | TSDQ | TRANSPORTES DE CARGA EN GENERAL | | | SCAC4 |
| 98 | TSDS | TRANSPORTES RESENDEZ | | | SCAC4 |
| 99 | TSDT | TRANSPORTES LOS SABINOS DIVISON ESP | | | SCAC4 |
| 100 | TSDV | TRI-STATE DELIVERY INC | | | SCAC4 |
