| 1 | MMM | Meridian Air Company | Callsign: Aviameridian, | RUS | AVCODES |
| 2 | MMM | MAM Aviation Ltd. | IATA: MF, Callsign: Mamair, Name changed to Marine and Aviation Management International | GB | AVCODES |
| 3 | MMM | Marine and Aviation Management International | IATA: MF, Callsign: Mamair, Name changed from MAM Aviation Ltd. | GB | AVCODES |
| 4 | MMM | Aviation Company Meridian | | | ICAO1 |
| 5 | MMM | Myanmar Airways International | IATA: 8M | | ICAO1 |
| 6 | MMMB | MID MARYLAND MACHINE INC | | | SCAC4 |
| 7 | MMME | MARTHA MCLEAN MINIATURES | | | SCAC4 |
| 8 | MMMG | MODION MARITIME MANAGEMENT SA | | | SCAC4 |
| 9 | MMML | MARTINEZ MARIN, MA LORENA | | | SCAC4 |
| 10 | MMMM | MARM | | | SCAC4 |
| 11 | MMMO | MAMM | | | SCAC4 |
| 12 | MMMP | METAL MANAGEMENT MISSISSIPPI INC | | | SCAC4 |
| 13 | MMMQ | MARCUM & MARCUM TRUCKING LLC | | | SCAC4 |
| 14 | MMMR | MARTINEZ MARTINEZ, MARIO | | | SCAC4 |
| 15 | MMMT | TRIPLE M TRANSPORTATION | | | PWRC |
| 16 | MMMT | MAMM | | | SCAC4 |
| 17 | MMMU | MCCAUGHRIN MARITIME MARINE SYSTEMS INC. | | USA | BIC |
| 18 | MMMU | FESCO PACIFIC LINES | | | PWRC |
| 19 | MMMU | Fesco Pacific Lines | | | RSRV |
| 20 | MMMU | V/O SOVINFOLT | | | SCAC3 |
| 21 | MMMU | MACCA | | | SCAC4 |
| 22 | MMMV | MID-MISS | | | SCAC4 |
| 23 | MMMW | M & M MOTORWAYS INC | | | SCAC4 |
| 24 | MMMX | Minnesota Mining & Manufacturing d/b/a 3M | 7/2000-7/2005 (not listed) | | NAKINA |
| 25 | MMMX | Minnesota Mining & Manufacturing d/b/a 3M | Jul-00 | | NRHS |
| 26 | MMMX | MINNESOTA MINING & MANUFACTURING CO. d/b/a 3M | | | PWRC |
| 27 | MMMX | Minnesota Mining and Manufacturing (3M) | | | RSRV |
| 28 | MMMX | MINNESOTA MINING & MANUFACTURING | | | SCAC4 |
