| 1 | TSS | Tropical Sea Airlines | Callsign: Tropical Sea, | T | AVCODES |
| 2 | TSS | Tri-State Aero, Inc. | Callsign: Tri-State, | USA | AVCODES |
| 3 | TSS | Tri-State Aero | | | ICAO1 |
| 4 | TSS | Traťová strojní společnost, a.s. | | CZ | VKM |
| 5 | TSSA | Tramwaje Slaskie S.A. | City: Chorzow | PL | TRAFFIC |
| 6 | TSSB | TRANSPORTATION SYSTEMS INC | | | SCAC4 |
| 7 | TSSC | TRANSPORT SALES & SERVICE | | | SCAC4 |
| 8 | TSSC | TSS Cargo | | CZ | VKM |
| 9 | TSSD | TRANSPORTES SAUCEDA | | | SCAC4 |
| 10 | TSSE | TWO SIPSTERS STUDIO | | | SCAC4 |
| 11 | TSSF | TWO SEVEN FOUR SIX-FIVE FIVE | | | SCAC4 |
| 12 | TSSJ | TRANSPORTES SJ | | | SCAC4 |
| 13 | TSSL | TSS TRANSPORT LLC | | | SCAC4 |
| 14 | TSSO | TRANSPORTES SERGIO GONZALEZ O | | | SCAC4 |
| 15 | TSSR | TEISSIER TRUCKING | | | SCAC4 |
| 16 | TSSRL | Technical Services S.r.l. | | I | TRAFFIC |
| 17 | TSSS | THREE ZERO NINE FIVE-SIX SIX SEVEN | | | SCAC4 |
| 18 | TSST | TROIS SEVEN (7) TRANSPORT INC | | | SCAC4 |
| 19 | TSSTT | TSS GRADE, a.s. | | SK | VKM |
| 20 | TSSU | T.S. LINES LTD | | RC | BIC |
| 21 | TSSU | TRANSAFE SERVICES LIMITED | | | SCAC4 |
| 22 | TSSV | TODD SPECIAL SERVICES INC | | | SCAC4 |
| 23 | TSSX | U.S. Dept. of Energy, Albuquerque Operations Office | added 10/1984; 1/1994; eliminated 10/1997; 7/2000-7/2005 (not listed) | | NAKINA |
| 24 | TSSX | U.S. Dept. of Energy, Albuquerque Operations Office | added 10/84; 1/94; eliminated 10/97; 7/2000 | | NRHS |
| 25 | TSSX | U.S.DEPT. OF ENERGY, ALBUQUERQUE OPERATIONS OFFICE | | | PWRC |
| 26 | TSSX | US Department of Energy Albuquerque Operations Office | | | RSRV |
| 27 | TSSX | U S DEPT OF | | | SCAC4 |
| 28 | TSSZ | TAL International (BNSF Railway) | | | RSRV |
| 29 | TSSZ | TRANSAMERICA LEASING INC | | | SCAC4 |
