| 1 | ETX | European Air Taxi | Callsign: Neat, | GB | AVCODES |
| 2 | ETX | Elmar Tank Line Co. | 1/1945-4/1961; 7/1965 (not listed); eliminated 7/1965 | | NAKINA |
| 3 | ETX | Elmar Tank Line Co. | 1/52-7/65; eliminated 7/65 | | NRHS |
| 4 | ETX | ELMAR TANK LINE CO. | | | PWRC |
| 5 | ETX | Essex Terminal Railway | | | RSRV |
| 6 | ETXA | EAST TEXAS PETROLEUM CO INC | | | SCAC3 |
| 7 | ETXA | ELITE TRANSPORT LLC | | | SCAC4 |
| 8 | ETXC | EDWARDS, TEX COMPANY INC | | | SCAC3 |
| 9 | ETXC | EASTEX CRUDE COMPANY | | | SCAC4 |
| 10 | ETXD | EAST TEXAS DRILLING FLUID INC | | | SCAC3 |
| 11 | ETXD | ESSENTIAL TRANSPORT INCORPORATED | | | SCAC4 |
| 12 | ETXF | EAST TEX FOREST PRODUCTS | | | SCAC3 |
| 13 | ETXF | ELEETS TRANSPORTATION | | | SCAC4 |
| 14 | ETXG | EAST | | | SCAC4 |
| 15 | ETXI | ELYRIA TAXI INC | | | SCAC3 |
| 16 | ETXK | ELITE TRANSPORTATION INC | | | SCAC4 |
| 17 | ETXL | EAST TEXAS PARCEL SERVICE OF LOUISI | | | SCAC3 |
| 18 | ETXN | ETX LLC | | | SCAC4 |
| 19 | ETXO | EL TORO EXPORT | | | SCAC3 |
| 20 | ETXQ | ETHAN LOGISTICS INC | | | SCAC4 |
| 21 | ETXR | EAST TEXAS REFRIGERATED EXPRESS INC | | | SCAC3 |
| 22 | ETXS | EL TORO EXPRESS | | | SCAC3 |
| 23 | ETXS | ELLIS TRANSPORTS LLC | | | SCAC4 |
| 24 | ETXT | EAST TEXAS TRANSPORTATION INC | | | SCAC3 |
| 25 | ETXT | ESCOBAR TRANSPORTATION | | | SCAC4 |
| 26 | ETXV | ELMET TRANSPORTE SA DE CV | | | SCAC4 |
| 27 | ETXY | ECLIPSE TRANSPORTATION INC | | | SCAC4 |
