| 1 | FEM | Flywell Airlines Private Limited | Callsign: Flywell, ICAO callsign changed to Zim Airlink | ZW | AVCODES |
| 2 | FEM | Flywell Airlines Private Limited t/a Zimbabwe Airlink | IATA: YZ, Callsign: Zim Airlink, Designator YZ recalled by IATA. ICAO callsign changed from Flywell | ZW | AVCODES |
| 3 | FEMC | FARMERS ELEVATOR INC OF MERCER COUN | | | SCAC3 |
| 4 | FEMG | FEDERAL EXECUTIVE MOVING SYSTEMS IN | | | SCAC3 |
| 5 | FEMK | FREER, MIKE TRUCKING | | | SCAC3 |
| 6 | FEML | FEDERAL MOTOR LINES INC | | | SCAC3 |
| 7 | FEMM | FREEDOM MOVERS | | | SCAC3 |
| 8 | FEMQ | FRIEDMAN MOTORS | | | SCAC3 |
| 9 | FEMS | FENNIMORE MILK SERVICE INC | | | SCAC3 |
| 10 | FEMS | FLANDERS ELECTRIC MOTOR SERVICE INC | | | SCAC4 |
| 11 | FEMU | FEDERAL EMERGENCY MANAGEMENT AGENCY | | USA | BIC |
| 12 | FEMX | Freight Equipment Management Co. | added 7/1978; 1/1980; eliminated 4/1989 | | NAKINA |
| 13 | FEMX | Freight Equipment Management Co. | added 7/78; 1/80; eliminated 4/89 | | NRHS |
| 14 | FEMX | FREIGHT EQUIPMENT MANAGEMENT CO. | | | PWRC |
| 15 | FEMX | Freight Equipment Management | | | RSRV |
