| 1 | ATX | Warwickshire Aerocentre Ltd. | Callsign: Airtax, Formerly Birmingham Aviation Ltd. ? | GB | AVCODES |
| 2 | ATX | Jet Options Ltd. | Callsign: Airtax, Formerly Birmingham Aviation Ltd. / Warwickshire Aerocentre Ltd. | GB | AVCODES |
| 3 | ATX | AirSWIFT Transport, Inc. | IATA: T6, Callsign: Airswift, Name changed from Island Transvoyager, Inc. ICAO Designator changed from ITI. ICAO Callsign changed from Trans Voyager. w.e.f. October 2015. | RP | AVCODES |
| 4 | ATX | Warwickshire Aerocentre Ltd. | | | ICAO1 |
| 5 | ATX | The American Tank Line | 8/1920-7/1936 | | NAKINA |
| 6 | ATX | E.I. du Pont de Nemours & Co., Inc. (The American Tank Line) | 7/1937 (not listed) | | NAKINA |
| 7 | ATX | E.I DUPONT DE NEMOURS (THE AMERICAN TANK LINE) | | | PWRC |
| 8 | ATXB | AMERICAN TAXI | | | SCAC3 |
| 9 | ATXD | ALS TAXI & DELIVERY | | | SCAC3 |
| 10 | ATXE | ATLANTIC TRANSIT EXPRESS INC | | | SCAC3 |
| 11 | ATXF | AIR TIGER EXPRESS (ASIA) INC | | | SCAC4 |
| 12 | ATXI | AST TRANSPORT LLC | | | SCAC4 |
| 13 | ATXK | ATX INTERNATIONAL SRL | | | SCAC4 |
| 14 | ATXL | AUTOMAX LEASING INC | | | SCAC4 |
| 15 | ATXM | ATL | | | SCAC4 |
| 16 | ATXN | ARTEX INC | | | SCAC3 |
| 17 | ATXO | AMERITEX TRANSPORTATION INC | | | SCAC3 |
| 18 | ATXP | ACCELERATED TRANSPORT SERVICE INC | | | SCAC3 |
| 19 | ATXP | AG TRUCK XPRESS LLC | | | SCAC4 |
| 20 | ATXQ | ATLANTA CARTAGE EXPRESS | | | SCAC3 |
| 21 | ATXQ | ATMA LOGISTICS CO | | | SCAC4 |
| 22 | ATXR | AMERICAN TRANSIT EXPRESS INC | | | SCAC3 |
| 23 | ATXS | ALTRANS EXPRESS CALIFORNIA INC | | | SCAC3 |
| 24 | ATXS | A T EXPRESS | | | SCAC4 |
| 25 | ATXT | ARKLATEX TRANSPORT INC | | | SCAC3 |
| 26 | ATXT | ATX | | | SCAC4 |
| 27 | ATXU | ANDERSON TRUCKING SERVICES | | USA | BIC |
| 28 | ATXV | ATX LOGISTIC LTD | | | SCAC4 |
