| 1 | ATZ | Alarmond Limited | Callsign: Astel, | GB | AVCODES |
| 2 | ATZ | Ace Air | Callsign: Ace Taxi, | ROK | AVCODES |
| 3 | ATZA | ALTIZA DISTRIBUIDORES | | | SCAC4 |
| 4 | ATZB | ATLANTIC TRUCK BROKERS INC | | | SCAC4 |
| 5 | ATZC | A TO Z INC | | | SCAC3 |
| 6 | ATZC | ATZ SHIPPING TRADE & TRANSPORT PVT | | | SCAC4 |
| 7 | ATZD | A TWO Z (A2Z) EXPRESS TRANSFERS INC | | | SCAC4 |
| 8 | ATZF | ALLNITE TRUCKING LTD | | | SCAC4 |
| 9 | ATZH | ATZ SHIPPING TRADE & TRANSPORT PRIV | | | SCAC4 |
| 10 | ATZI | ATZ TRUCKING COMPANY | | | SCAC3 |
| 11 | ATZI | ACT LOGISTICS INC | | | SCAC4 |
| 12 | ATZJ | ATLAS CHARTERING CORPORATION | | | SCAC4 |
| 13 | ATZK | AMMEX TAX AND DUTY FREE | | | SCAC4 |
| 14 | ATZL | ATLANTIC TRANSPORT CO. LTD | | | SCAC3 |
| 15 | ATZL | ALLIANCE MOTORSPORTS LLC | | | SCAC4 |
| 16 | ATZM | A TO Z TOWING INC | | | SCAC3 |
| 17 | ATZN | AMERICAN TRANSPORTAION | | | SCAC3 |
| 18 | ATZN | ATCO TRANSPORT INC | | | SCAC4 |
| 19 | ATZO | A TO Z CARTAGE CO | | | SCAC3 |
| 20 | ATZO | AUTO | | | SCAC4 |
| 21 | ATZP | A TO Z PETROLEUM COMPNY | | | SCAC3 |
| 22 | ATZQ | A TO Z TRANSPORTATION INC | | | SCAC4 |
| 23 | ATZR | ABLE TRANZ LLC | | | SCAC4 |
| 24 | ATZS | ADVANCED TRANSPORTATION SYSTEMS INC | | | SCAC3 |
| 25 | ATZT | A TO Z TIRE INC | | | SCAC3 |
| 26 | ATZT | A TO Z TRANSPORT | | | SCAC4 |
| 27 | ATZV | A-TWO-Z (A-2-Z) MOVING & STORAGE | | | SCAC4 |
| 28 | ATZW | AMOCO TRANSPORT COMPANY | | | SCAC3 |
| 29 | ATZY | ASHMEL TRANSPORTATION LLC | | | SCAC4 |
