| 1 | ENC | Endecots, S.A. | Callsign: Endecots, | EC | AVCODES |
| 2 | ENC | Endecots | | | ICAO1 |
| 3 | ENCA | ENFLO CANADA LTD | | | SCAC4 |
| 4 | ENCC | E & T CARTAGE CORPORATION | | | SCAC3 |
| 5 | ENCC | EB INTERNACIONAL SA DE CV | | | SCAC4 |
| 6 | ENCH | ENGLAND CHARTER & TOURS INC | | | SCAC3 |
| 7 | ENCJ | ENCON | | | SCAC4 |
| 8 | ENCK | ENACT LLC | | | SCAC4 |
| 9 | ENCL | EASTERN CONTAINER LINE | | | SCAC4 |
| 10 | ENCM | ENERCHEM MARITIME INC. | | | SCAC3 |
| 11 | ENCN | ENCON INC | | | SCAC3 |
| 12 | ENCN | EMPRESA NAVIERA ELCANO SA | | | SCAC4 |
| 13 | ENCO | ENCO MANUFACTURING CO | | | SCAC3 |
| 14 | ENCP | E & C TRANSPORT | | | SCAC3 |
| 15 | ENCQ | ENCORE TRANSPORTATION LLC | | | SCAC4 |
| 16 | ENCR | ENCORE TRANSPORT INC | | | SCAC3 |
| 17 | ENCS | E & C STATE LINERS INC | | | SCAC3 |
| 18 | ENCS | ELDON FREIGHTWAYS INC | | | SCAC4 |
| 19 | ENCT | ENCINAL TRUCKING INC | | | SCAC3 |
| 20 | ENCT | ENCINA TRANSPORT INC | | | SCAC4 |
| 21 | ENCV | ENCARGO LOGISTICS | | | SCAC4 |
| 22 | ENCW | ENVIRO-CHEM WASTE MANAGEMENT SERVIC | | | SCAC3 |
| 23 | ENCX | En Erco International, Inc. | added 7/1971; 1/1975-1/1980; eliminated 5/1983; 1/1994 (not listed) | | NAKINA |
| 24 | ENCX | En Erco International, Inc. | 1/75-1/80; eliminated 5/83; 1/94 | | NRHS |
| 25 | ENCX | EN ERCO INTERNATIONAL INC | | | PWRC |
| 26 | ENCX | EN ERCO International | | | RSRV |
| 27 | ENCY | ENTERPRISE COMPANY | | | SCAC4 |
