| 1 | HAC | Henebury Aviation Co. | | AUS | AVCODES |
| 2 | HAC | Henebury Aviation | | | ICAO1 |
| 3 | HAC | Hokkaido Air System | Real: NTH, 6L | J | TRAFFIC |
| 4 | HACA | HAINAULT LLC | | | SCAC4 |
| 5 | HACC | HAWK TRANSPORTATION INC | | | SCAC4 |
| 6 | HACD | HADLEY SEED FARM | | | SCAC4 |
| 7 | HACE | HAAG TRANSPORT INC | | | SCAC4 |
| 8 | HACH | HACHE EXPRESS INC | | | SCAC4 |
| 9 | HACK | HACK & SONS TRUCKING | | | SCAC4 |
| 10 | HACK | Hackney Community Transport | | GB | TRAFFIC |
| 11 | HACL | HARTWIG TRUCKING INC | | | SCAC4 |
| 12 | HACO | HALLCO TRANSPORT SYSTEMS INC | | | SCAC4 |
| 13 | HACR | H & A EXPRESS INC | | | SCAC4 |
| 14 | HACT | HAMMOND AIR CONDITIONING LTD | | | SCAC4 |
| 15 | HACU | HAIAN TRANSPORT & STEVEDORING JSC | | VN | BIC |
| 16 | HACU | CONTENEMAR SA | | | SCAC4 |
| 17 | HACV | HARRIS AIRCRAFT SERVICES INC | | | SCAC4 |
| 18 | HACX | Canada Packers Ltd. | eliminated 4/1971 | | NAKINA |
| 19 | HACX | Canada Packers Ltd. (The Harris Abbatoir Co., Ltd.) | 7/1935-4/1970 | | NAKINA |
| 20 | HACX | The Harris Abbatoir Co., Ltd. (Canada Packers Ltd.) | 7/1932 | | NAKINA |
| 21 | HACX | Canada Packers Ltd. (The Harris Abbatoir Co., Ltd.) | 4/38-4/70 | | NRHS |
| 22 | HACX | Canada Packers Ltd. | eliminated 4/71 | | NRHS |
| 23 | HACX | CANADA PACKERS LTD. [HARRIS ABBATOIR CO., LTD.] | | | PWRC |
