| 1 | EY | Mayan World Airlines | ICAO: MYN, Callsign: Mayan World, Ceased operations. Designator EY recalled by IATA | GCA | AVCODES |
| 2 | EY | EAS Europe Airlines | ICAO: EYT, Callsign: Euroservice, Ceased operations. Name changed from Europe Aero Service | F | AVCODES |
| 3 | EY | Eagle Air Ltd. | ICAO: EFL, Callsign: Flying Eagle, Designator EY* reinstated by IATA | EAT | AVCODES |
| 4 | EY | Europe Aero Service | ICAO: EYT, Name changed to EAS Europe Airlines | F | AVCODES |
| 5 | EY | Etihad Airways | ICAO: ETD, Callsign: Etihad, IATA Prefix: 607, Name changed to Etihad Airways d/b/a Etihad. | UAE | AVCODES |
| 6 | EY | Etihad Airways d/b/a Etihad | ICAO: ETD, Callsign: Etihad, IATA Prefix: 607, Name changed from Etihad Airways. | UAE | AVCODES |
| 7 | EYAK | EYAK TRUCKING | | | SCAC3 |
| 8 | EYB | EYRE BUS SERVICE INC | | | SCAC4 |
| 9 | EYC | Elytra Charter GmbH & Co KG. | Name changed to AIR X Executive Jets GmbH. | D | AVCODES |
| 10 | EYC | AIR X Executive Jets GmbH | Name changed from Elytra Charter GmbH & Co KG.. | D | AVCODES |
| 11 | EYDK | EYERS, DOUGLAS K | | | SCAC3 |
| 12 | EYDK | ENERGY SOLUTIONS INSULATION INC | | | SCAC4 |
| 13 | EYE | F.S. Air Service, Inc. | IATA: 4A, Callsign: Sockeye, | USA | AVCODES |
| 14 | EYE | F.S. Air Service | | | ICAO1 |
| 15 | EYEB | EYEBROWZ DESIGNS INC | | | SCAC4 |
| 16 | EYES | EYES FOR THE WILD ART | | | SCAC4 |
| 17 | EYET | EYE THINK INC | | | SCAC4 |
| 18 | EYFA | EASYFAST TRANSPORT INC | | | SCAC4 |
| 19 | EYFI | EDDY FOODS INC | | | SCAC4 |
| 20 | EYIU | Triton Container International | | | RSRV |
| 21 | EYIU | TRITON CONTAINER INTERNATIONAL CORP | | | SCAC4 |
| 22 | EYKC | EASY TRUCKING CORP | | | SCAC4 |
| 23 | EYKM | EARLY TRUCKING COMPANY | | | SCAC4 |
| 24 | EYMI | E Y M Instalaciones s.a. | | ES | VKM |
| 25 | EYML | EYMIL TRANSPORT CORP | | | SCAC4 |
| 26 | EYMS | East Yorkshire Motor Services | | GB | TRAFFIC |
| 27 | EYN | Europe Aero Service National | | F | AVCODES |
| 28 | EYPI | E Y PROGRES INC | | | SCAC4 |
| 29 | EYRE | Eyre Bus Service | | USA | TRAFFIC |
| 30 | EYRG | EYRING, EDWARD & SONS, INC | | | SCAC3 |
| 31 | EYRG | ESQUIVIAS YEE, ARTURO AND GEORGE JA | | | SCAC4 |
| 32 | EYRK | EPPERLY, RAY & KAREN INC | | | SCAC4 |
| 33 | EYS | Flygtransporter Nykoping AB | Callsign: Extrans, | S | AVCODES |
| 34 | EYSA | EYSA DEL PACIFICO S DE RL | | | SCAC4 |
| 35 | EYSL | EYSA LOGISTICS INC | | | SCAC4 |
| 36 | EYST | EASY STREET | | | SCAC4 |
| 37 | EYT | EAS Europe Airlines | IATA: EY, Callsign: Euroservice, Ceased operations. Name changed from Europe Aero Service | F | AVCODES |
| 38 | EYT | Europe Aero Service | IATA: EY, Name changed to EAS Europe Airlines | F | AVCODES |
| 39 | EYT | Etihad Flight College | Callsign: Zayed, ICAO callsign changed to Jernas. | UAE | AVCODES |
| 40 | EYT | Etihad Flight College | Callsign: Jernas, ICAO callsign changed from Zayed. | UAE | AVCODES |
| 41 | EYTD | ETERNITY TRANSPORT LTD | | | SCAC4 |
| 42 | EYTI | EASY TRANSPORT INC | | | SCAC3 |
| 43 | EYTL | EMBASSY TRANSPORT LLC | | | SCAC4 |
| 44 | EYTR | EASTERLY TRANSFER SERVICES INC | | | SCAC3 |
| 45 | EYTU | HARBIN EYT TECH&TRADE SHARE CO., LTD | | PRC | BIC |
| 46 | EYUS | EXPRESSW | | | SCAC4 |
| 47 | EYXC | EBONY TRANSPORTATION LLC | | | SCAC4 |
| 48 | EYXS | ENERGY TRANSPORT SOLUTIONS INC | | | SCAC4 |
