| 1 | MEI | Merlin Express, Inc. | Callsign: Avalon, Name changed to Merlin Airways, Inc. | USA | AVCODES |
| 2 | MEI | Merlin Airways, Inc. | Callsign: Avalon, Name changed from Merlin Express, Inc. Fedex-Feeder | USA | AVCODES |
| 3 | MEI | Merlin Airways | | | ICAO1 |
| 4 | MEI | Meitetsu: Nagoya Railroad Co. | | J | TRAFFIC |
| 5 | MEIA | MEIER BROTHERS FARMS | | | SCAC4 |
| 6 | MEIB | MORKEN EXPRESS INC | | | SCAC4 |
| 7 | MEID | MNM EMPIRE INC | | | SCAC4 |
| 8 | MEIDB | Meidenbauer Reiobus | | D | TRAFFIC |
| 9 | MEIE | MEIER TRUCKING COMPANY, INC. | | | SCAC1 |
| 10 | MEIG | Mitteldeutsche Eisenbahninfrastrukturgesellschaft mbH | | DE | VKM |
| 11 | MEIJ | MEIJER LOGISTICS LLC | | | SCAC4 |
| 12 | MEIK | MARTIN ENTERPRISE INC | | | SCAC4 |
| 13 | MEIKB | Meitetsu Kanko Bus | | J | TRAFFIC |
| 14 | MEIKIN | Meihan Kintetsu Bus | Meihan Kintetsu Bus is a subsidiary of Mie Kotsu Group Holdings , an affiliate of Kintetsu Group Holdings | J | TRAFFIC |
| 15 | MEIM | MEI MEE LIMITED | | | SCAC4 |
| 16 | MEIO | MEIER OIL SERVICE INC | | | SCAC4 |
| 17 | MEIP | MEI EQUIPMENT INC | | | SCAC4 |
| 18 | MEIR | MECIAS IBARRA, ROGELIO | | | SCAC4 |
| 19 | MEIS | MEISLER TRAILER RENTALS INC | | | SCAC4 |
| 20 | MEIU | MESSER ITALIA SPA | | | SCAC4 |
| 21 | MEIV | MASTERLINE EXPRESS INC | | | SCAC4 |
| 22 | MEIY | MENES ENTERPRISES INC | | | SCAC4 |
