| 1 | HMM | Hamra Air | Callsign: Hamra, Name changed to RAK Airways. | UAE | AVCODES |
| 2 | HMM | Hamra Air | | | ICAO1 |
| 3 | HMMC | HARRIS MERCANTILE & MANAGEMENT COMP | | | SCAC4 |
| 4 | HMME | HAMM | | | SCAC4 |
| 5 | HMMH | HM & M TRUCKING INC | | | SCAC4 |
| 6 | HMMJ | Hallsberg - Motala - Mjölby Järnväg | 1873 - 1879 | S | svenska-lok.se |
| 7 | HMMK | HAMM | | | SCAC4 |
| 8 | HMML | HERON MARITIME S A OF MONROVIA-LIBE | | | SCAC4 |
| 9 | HMMN | HUERTA MENDOZA, MARIA EUGENIA | | | SCAC4 |
| 10 | HMMS | HAMM | | | SCAC4 |
| 11 | HMMT | HEMME HAY & FEED INC | | | SCAC4 |
| 12 | HMMU | HMM CO., LTD. | | ROK | BIC |
| 13 | HMMU | HYUNDAI MERCHANT MARINE | | | SCAC4 |
