| 1 | EFE | Ermolino Flying Test Research Enterprise | Callsign: Ermolino Air, | RUS | AVCODES |
| 2 | EFE | E-Freight International Ltd | Callsign: Efreight Sudan, | SUD | AVCODES |
| 3 | EFE | Empresa de los Ferrocarriles del Estado | | RCH | TRAFFIC |
| 4 | EFEA | Empresa Ferrocarriles del Estado Argentino | | RA | TRAFFIC |
| 5 | EFEF | ESMERALDA, F ENTERPRISES | | | SCAC4 |
| 6 | EFEI | EFFICIENCY ENTERPRISES OF TAMPA LLC | | | SCAC4 |
| 7 | EFEQ | EFFINGHAM EQUITY | | | SCAC3 |
| 8 | EFEQ | EFFINGHAM EQUITY | | | SCAC4 |
| 9 | EFES | EFICAS TRANSFER SA DE CV | | | SCAC4 |
| 10 | EFET | E F E TRUCKING | | | SCAC3 |
| 11 | EFEU | EVER FORTUNE ENTERPRISE (H.K.) CO., LTD | | HK | BIC |
