| 1 | ATE | Atlantis Transportation Services, Ltd. | Callsign: Atlantis Canada, | CDN | AVCODES |
| 2 | ATE | Servicio Mericano de Vuelose de Fletamento, S.A. de C.V. | Callsign: Amtravel, | MEX | AVCODES |
| 3 | ATE | Al-Atheer Aviation | | SA | AVCODES |
| 4 | ATE | Atlantis Transportation Services, Ltd. | | | ICAO1 |
| 5 | ATEB | ATE LOGISTIC CO LTD | | | SCAC4 |
| 6 | ATEC | ASCOTECH SA DE CV | | | SCAC4 |
| 7 | ATED | ASSOCIATED SAFETY INC | | | SCAC4 |
| 8 | ATEG | ATEN, GEORGE M | | | SCAC3 |
| 9 | ATEG | AUTO TRANSPORTES ESPECIALIZADOS G M | | | SCAC4 |
| 10 | ATEH | ARTECH | | | SCAC3 |
| 11 | ATEH | ARTECH INC | | | SCAC4 |
| 12 | ATEK | AMG TRANSPORT EXPRESS INC | | | SCAC4 |
| 13 | ATEL | ATLANTIC EXPRESS LINES INC | | | SCAC3 |
| 14 | ATEL | ANYTIME EXPRESS LTD | | | SCAC4 |
| 15 | ATEM | ATTEMA, HARLAN | | | SCAC4 |
| 16 | ATEN | ATKINS ENTERPRISES LLC | | | SCAC4 |
| 17 | ATEO | ACE TANK & EQUIPMENT | | | SCAC3 |
| 18 | ATEQ | ACME TRUCK LINE INC | | | SCAC3 |
| 19 | ATEQ | ACME TRUCK LINE INC | | | SCAC4 |
| 20 | ATER | ATENHAN TRUCKING INC | | | SCAC3 |
| 21 | ATES | ACTIVE TRANSPORT SERVICE INC | | | SCAC3 |
| 22 | ATET | AT & E TRUCKING | | | SCAC3 |
| 23 | ATEV | A T R ENTERPRISES INC | | | SCAC3 |
| 24 | ATEV | A TWO (2) B TRUCKING & LOGISTICS | | | SCAC4 |
| 25 | ATEW | A THREE RIVERS FORWARDING INC | | | SCAC3 |
| 26 | ATEX | Asplundh Tree Expert Co., R.R. Division | 1/1994-7/2005 (not listed) | | NAKINA |
| 27 | ATEX | Andrews Tanning Extract Co. | 7/1935 | | NAKINA |
| 28 | ATEX | Teas Extract Co. | 7/1937-7/1954; eliminated 7/1956 | | NAKINA |
| 29 | ATEX | Teas Extract Co. | 4/38-1/52; eliminated 7/56 | | NRHS |
| 30 | ATEX | Asplundh Tree Expert Co., R.R. Division | 1/94-7/2000 | | NRHS |
| 31 | ATEX | *TEAS EXTRACT CO. | | | PWRC |
| 32 | ATEX | +ASPLUNDH TREE EXPERT COMPANY | | | PWRC |
| 33 | ATEX | Asplundh Tree Expert | | | RSRV |
| 34 | ATEX | ASPLUNDH TREE EXPERT COMPANY | | | SCAC4 |
| 35 | ATEZ | ATLANTIC ENERGY | | | PWRC |
