| 1 | TOW | Tower Air, Inc. | IATA: FF, Callsign: Tee Air, Ceased operation 10 October 2000. Designator FF recalled by IATA | USA | AVCODES |
| 2 | TOW | AirTanker Ltd | IATA: 9L, Callsign: Towline, ICAO designator changed from FST | GB | AVCODES |
| 3 | TOW | Tower Air | | | ICAO1 |
| 4 | TOWA | Towada Kanko Electric Railway | | J | TRAFFIC |
| 5 | TOWE | TOWNE AIR FREIGHT, INC | | | SCAC1 |
| 6 | TOWE | TOWNE AIR FREIGHT INC | | | SCAC4 |
| 7 | TOWF | TRANSPORTES OSCAR WATSON | | | SCAC4 |
| 8 | TOWN | TOWN OIL CO | | | SCAC4 |
| 9 | TOWP | TITLETOWN OIL TRANSPORT INC | | | SCAC4 |
| 10 | TOWQ | TOWER GROUP INTERNATIONAL | | | SCAC4 |
| 11 | TOWR | TOWERSCAN | | | SCAC4 |
| 12 | TOWS | TOWNSEND TRUCKING LLC | | | SCAC4 |
| 13 | TOWX | Titusville Oil Works | 8/1920-7/1930 | | NAKINA |
| 14 | TOWX | Town & Country Co-op Inc. | added 1/2004; 7/2005 | | NAKINA |
| 15 | TOWX | *TITUSVILLE OLI WORKS | | | PWRC |
| 16 | TOWX | +TOWN & COUNTRY CO-OP INC. | | | PWRC |
| 17 | TOWX | TOWN & COUNTRY CO-OP INC | | | SCAC4 |
