| 1 | EST | Flugfelag Austurlands Ltd., Egilsstadir | Callsign: Austurflug, | IS | AVCODES |
| 2 | EST | Carga Express Internacional, S.A. de C.V. | Callsign: Cargainter, | MEX | AVCODES |
| 3 | EST | Regional Jet Ou | IATA: EE, Callsign: Reval, Nmae changed to Regional Jet Ou d/b/a Xfly. Subsidary of Nordic Aviation Group. | EST | AVCODES |
| 4 | EST | Regional Jet Ou d/b/a Xfly | IATA: EE, Callsign: Reval, Name changed from Regional Jet Ou. Subsidary of Nordic Aviation Group. | EST | AVCODES |
| 5 | EST | Carga Express Internacional | | | ICAO1 |
| 6 | EST | Chemins de fed de l'Est | | F | TRAFFIC |
| 7 | ESTA | ESTATE OF GEO S SNYDER, INC | | | SCAC3 |
| 8 | ESTB | ESTES, LARRY BODY SHOP | | | SCAC3 |
| 9 | ESTC | ESPENSCHIED TRANSPORT CORP | | | SCAC3 |
| 10 | ESTC | EISSING TRANSPORTATION INC | | | SCAC4 |
| 11 | ESTD | ESSENTIAL TRUCKING INC | | | SCAC3 |
| 12 | ESTE | Aerolíneas Estelar | Real: ETR | YV | TRAFFIC |
| 13 | ESTF | EASTERN TRANSFER | | | SCAC3 |
| 14 | ESTF | EBENISTERIE ST-TITE INC | | | SCAC4 |
| 15 | ESTG | E & S TRUCKING COMPANY | | | SCAC3 |
| 16 | ESTG | EXPRESS STORAGE CONTAINER RENTAL AN | | | SCAC4 |
| 17 | ESTI | E & S TRUCKING INC | | | SCAC3 |
| 18 | ESTK | E AND S TRUCK CAR POOL INC | | | SCAC3 |
| 19 | ESTL | ESTILL, R S (DICK) | | | SCAC3 |
| 20 | ESTL | EMSTAR ENTERPRISES | | | SCAC4 |
| 21 | ESTM | ESTES, MARSHALL M | | | SCAC3 |
| 22 | ESTM | EMERALD STONE MINING & MARKETING IN | | | SCAC4 |
| 23 | ESTN | ESTIN, BOB TRUCKING | | | SCAC3 |
| 24 | ESTO | ESTYS TRANSPORTATION INC | | | SCAC3 |
| 25 | ESTP | EASTERN STATES TRANSPORTATION CO IN | | | SCAC3 |
| 26 | ESTP | EASTERN EXPRESS | | | SCAC4 |
| 27 | ESTQ | EASTERN COLORADO TRANSPORTATION | | | SCAC3 |
| 28 | ESTR | ESTES, EARL | | | SCAC3 |
| 29 | ESTS | ESTES, MARTI TRUCKING | | | SCAC3 |
| 30 | ESTS | ESTES SPECIALIZED TRUCKLOAD SERVICE | | | SCAC4 |
| 31 | ESTT | ES TRANSPORTATION | | | SCAC4 |
| 32 | ESTU | EASTCOMTRANS LIMITED LIABILITY PARTNERS | | KZ | BIC |
| 33 | ESTU | ESTONIAN SHIPPING COMPANY | | | SCAC3 |
| 34 | ESTW | E & S TOWING INC | | | SCAC3 |
| 35 | ESTX | Energy Solutions, LLC | added 4/2009 | | NAKINA |
| 36 | ESTX | Eston Chemicals, American Potash & Chemical Corp. | added 1/1953; 7/1954-10/1957; eliminated 4/1958 | | NAKINA |
| 37 | ESTX | Eston Chemicals, Inc. | 4/1947-1/1952; eliminated 1/1953 | | NAKINA |
| 38 | ESTX | Eston Chemicals, Inc. | Jan-52 | | NRHS |
| 39 | ESTX | Eston Chemicals, American Potash & Chemical Corp. | Oct-57 | | NRHS |
| 40 | ESTX | AMERICAN POTASH & CHEMICAL CORP. [ESTON CHEMICALS, INC.] | | | PWRC |
| 41 | ESTX | ENERGYSOLUTIONS LLC | | | SCAC4 |
| 42 | ESTY | E & S TRUCKING CO | | | SCAC3 |
