| 1 | ALZ | Alta Flights (Charters) Ltd. | | CDN | AVCODES |
| 2 | ALZ | Alliance Airlines | Callsign: Alliance Air, | USA | AVCODES |
| 3 | ALZ | Azure Aviation Ltd. | Callsign: Azure, | BS | AVCODES |
| 4 | ALZ | Alta Flights (Charters) Ltd. | | | ICAO1 |
| 5 | ALZA | AL & LYD TRANSPORT INC | | | SCAC4 |
| 6 | ALZA | Alza Cargo | | PL | TRAFFIC |
| 7 | ALZB | ALBANY TRANSPORT LLC | | | SCAC4 |
| 8 | ALZC | AMERICAN LIMOUSINE INC | | | SCAC3 |
| 9 | ALZF | ALONZO FARMS, INC | | | SCAC3 |
| 10 | ALZG | ALLEN BOYS TRUCKING | | | SCAC4 |
| 11 | ALZH | ALMQUIST LOGISTICS | | | SCAC4 |
| 12 | ALZJ | ALLEN, TYLER TRUCKING | | | SCAC4 |
| 13 | ALZM | ALADDIN MILLS INC | | | SCAC3 |
| 14 | ALZP | ALPHECCA SHIPPING CO. LTD. | | | SCAC3 |
| 15 | ALZP | ALONSO TRANSPORT | | | SCAC4 |
| 16 | ALZQ | ARMADORES LARA, S.A. | | | SCAC3 |
| 17 | ALZQ | A L D SERVICES INC | | | SCAC4 |
| 18 | ALZS | ALLIED SYSTEMS, LTD | | | SCAC3 |
| 19 | ALZS | ALLIED SYSTEMS LTD | | | SCAC4 |
| 20 | ALZU | AIR LIQUIDE NEW ZEALAND | | NZ | BIC |
| 21 | ALZU | ADVANCED LINER PACKAGING LTD | | | SCAC4 |
| 22 | ALZV | ALVELOS SHIPPING CORP. | | | SCAC3 |
| 23 | ALZY | ALL-CONNECT | | | SCAC4 |
