| 1 | TOM | Thomsonfly Limited | IATA: BY, Callsign: Tomson, IATA Prefix: 754, Name changed to Thomson Airways Limited w.e.f. 27 October 2008. Name changed from Britannia Airways Limited w.e.f. 01 November 2005 | GB | AVCODES |
| 2 | TOM | TUI Airways Limited | IATA: BY, Callsign: TUI Air, IATA Prefix: 754, Name changed from Thomson Airways Limited w.e.f. 02 October 2017. ICAO Callsign changed from Tomson. ICAO callsign changed to Tomjet. | GB | AVCODES |
| 3 | TOM | Thomson Airways Limited | IATA: BY, Callsign: Tomson, IATA Prefix: 754, Name changed to TUI Airways Limited w.e.f. 02 October 2017. Name changed from Thomsonfly Limited w.e.f. 27 October 2008. | GB | AVCODES |
| 4 | TOM | TUI Airways Limited | IATA: BY, Callsign: Tomjet, IATA Prefix: 754, Name changed from Thomson Airways Limited w.e.f. 02 October 2017. ICAO Callsign changed from Tomson. ICAO callsign changed from TUI Air. | GB | AVCODES |
| 5 | TOM | Thomsonfly | IATA: BY | | ICAO1 |
| 6 | TOMC | THOMAS CHARTERS | | | SCAC4 |
| 7 | TOMH | TOMASOS BROTHERS INC | | | SCAC4 |
| 8 | TOMI | TRANSPORT OIRAM INC | | | SCAC4 |
| 9 | TOMJ | TOMORROW TRANSPORT LLC | | | SCAC4 |
| 10 | TOMK | TOMPKINS PETROLEUM TRANSPORT INC | | | SCAC4 |
| 11 | TOML | PKS Tomaszów Lubelski | | PL | TRAFFIC |
| 12 | TOMM | TRANSPORT ROMM | | | SCAC4 |
| 13 | TOMQ | TOMBARELLO AND SONS INC | | | SCAC4 |
| 14 | TOMS | TODD MARITIME SERVICES | | | SCAC4 |
| 15 | TOMU | {SIA "JAUNMĪLGRĀVJA OSTAS KOMPĀNIJA"};ZIPCODE=LV-1034 | | LV | BIC |
| 16 | TOMU | MTP-MULTITRANSPOOL SA | | | SCAC4 |
| 17 | TOMV | THINGS TO MOVE INC | | | SCAC4 |
| 18 | TOMW | TOMPKINS AND WEEKS INC | | | SCAC4 |
| 19 | TOMX | Terminal Oil Mill Co. | 8/1920 | | NAKINA |
| 20 | TOMX | Terminal Oil Mill Co. (Southport Mill, Ltd.) | 7/1923 | | NAKINA |
| 21 | TOMX | Snyder Brothers' Car Line | 1/1941 | | NAKINA |
| 22 | TOMX | *SOUTHPORT MILL, LTD. [TERMINAL OIL MILL CO.] | | | PWRC |
| 23 | TOMX | *SNYDER BROTHERS' CAR LINE | | | PWRC |
| 24 | TOMZ | TRADER'S OIL MILL | | | PWRC |
