| 1 | MNF | Man-air.com Ltd. | Callsign: Pennine, Name changed to Man-air.com Ltd. t/a AV8 Air | GB | AVCODES |
| 2 | MNF | Man-air.com Ltd. t/a AV8 Air | Callsign: Pennine, ICAO callsign changed to Ringway. Name changed from Man-air.com Ltd. | GB | AVCODES |
| 3 | MNF | Man-air.com Ltd. t/a AV8 Air | Callsign: Ringway, Ceased operations in 2004. ICAO callsign changed from Pennine. Name changed from Man-air.com Ltd. | GB | AVCODES |
| 4 | MNF | MOREHEAD & NORTH FORK RAILROAD CO. | | | PWRC |
| 5 | MNF | MOREHEAD & NORTH FORK | | | SCAC4 |
| 6 | MNFD | MANSFIELD EXPRESS LLC | | | SCAC4 |
| 7 | MNFE | M&S TRANSFER, Daro Associates, INC | | | SCAC1 |
| 8 | MNFF | MODERN TRAFFIC SERVICES, INC | | | SCAC1 |
| 9 | MNFG | MANATOR FREIGHT, Hawk Pacific Corp | | | SCAC1 |
| 10 | MNFI | MARTEL & FILS INC MARTEL & SONS INC | | | SCAC4 |
| 11 | MNFM | MONIER FARMS TRUCKING | | | SCAC4 |
| 12 | MNFO | MANSFIELD OIL CO INC | | | SCAC4 |
| 13 | MNFP | MANOR FUEL COMPANY INC | | | SCAC4 |
| 14 | MNFR | MANUFACTURERS TRANSPORT LLC | | | SCAC4 |
| 15 | MNFS | MAIN FILTER INC | | | SCAC4 |
| 16 | MNFZ | MONFORT | | | PWRC |
