| 1 | ERI | Aero Servicios Regiomontanos, S.A. de C.V. | Callsign: Asergio, | MEX | AVCODES |
| 2 | ERI | Aero Servicios Regiomontanos | | | ICAO1 |
| 3 | ERIB | EARLY RISERS | | | SCAC4 |
| 4 | ERIC | ERICKSON MOVING SERVICE | | | SCAC3 |
| 5 | ERIC | ERIC TRANSPORT INTERNATIONAL | | | SCAC4 |
| 6 | ERIE | Consolidated Rail Corp. | added 4/1976; 1/1980-1/1994; eliminated 7/1999 | | NAKINA |
| 7 | ERIE | Erie Lackawanna Ry. Co., Thomas J. Patton and Ralph S. Tyler, Jr., Trustees | eliminated 4/1976 | | NAKINA |
| 8 | ERIE | Erie Lackawanna R.R. Co. | 1/1975 | | NAKINA |
| 9 | ERIE | Erie R.R. Co. (Erie Lackawanna R.R. Co.) | 10/1966 | | NAKINA |
| 10 | ERIE | Erie R.R. (Co.) | 7/1923-7/1965 | | NAKINA |
| 11 | ERIE | Erie R.R. | 4/38-7/65 | | NRHS |
| 12 | ERIE | Erie R.R. Co. (Erie Lackawanna R.R. Co.) | Oct-66 | | NRHS |
| 13 | ERIE | Erie Lackawanna R.R. Co. | Jan-75 | | NRHS |
| 14 | ERIE | Erie Lackawanna Ry. Co., Thomas J. Patton and Ralph S. Tyler, Jr., Trustees | eliminated 4/76 | | NRHS |
| 15 | ERIE | Consolidated Rail Corp. | added 4/76; 1/80-1/94; eliminated 7/99 | | NRHS |
| 16 | ERIE | *CONSOLIDATED RAIL CORP. [ERIE LACKAWANNA RAILWAY; ERIE RAILROAD] | | | PWRC |
| 17 | ERIE | *ERIE MINING COMPANY | | | PWRC |
| 18 | ERIE | Erie Railroad (Norfolk Southern) | | | RSRV |
| 19 | ERIE | Erie Railroad | | USA | TRAFFIC |
| 20 | ERIH | EASTERDAY RANCHES INC | | | SCAC4 |
| 21 | ERIJ | ERICKSON TRUCKING SERVICE INC | | | SCAC3 |
| 22 | ERIJ | ERIE JAMES EXPRESS | | | SCAC4 |
| 23 | ERIK | ERICKSON, GENE, TRUCKING, INC | | | SCAC3 |
| 24 | ERIK | ERICKSON, GENE TRUCKING INC | | | SCAC4 |
| 25 | ERIN | ERIN LIMOUSINE SERVICE INC | | | SCAC3 |
| 26 | ERIP | ERIE-PITTSBURGH MOTOR EXPRESS | | | SCAC3 |
| 27 | ERIR | ERIN TRNASPORT LTD | | | SCAC3 |
| 28 | ERIR | ERIN TRNASPORT LTD | | | SCAC4 |
| 29 | ERIS | E & R INDUSTRIAL SALES INC | | | SCAC3 |
| 30 | ERIS | ERIE SHORES TRUCKING | | | SCAC4 |
| 31 | ERIT | ERIE TRANSFER CO, INC | | | SCAC3 |
| 32 | ERIT | Eritrean railway | | | TRAFFIC |
| 33 | ERIU | ERONTRANS SP. Z.O.O | | PL | BIC |
| 34 | ERIU | ERIC INTERNATIONAL LTD | | | SCAC3 |
| 35 | ERIV | ERIEVIEW CARTAGE INC | | | SCAC3 |
| 36 | ERIX | Eric Dewayne Hopp | 7/2005 (not listed) | | NAKINA |
| 37 | ERIX | Empire Oil & Refining Co. | 7/1930-7/1937 | | NAKINA |
| 38 | ERIX | Empire Refineries, Inc. | 7/1923 | | NAKINA |
| 39 | ERIX | Producers Refining Co. (Empire Refineries, Inc.) | 8/1920 | | NAKINA |
| 40 | ERIX | *EMPIRE OIL & REFINING CO. [PRODUCERS REFINING CO.] | | | PWRC |
| 41 | ERIX | +ERIC DEWAYNE HOPP | | | PWRC |
| 42 | ERIX | ERIX Railcar | | | RSRV |
| 43 | ERIX | ERIC DEWAYNE HOPP | | | SCAC4 |
| 44 | ERIXX | erixx GmbH | Die erixx GmbH ist ein 100-prozentiges Tochterunternehmen der Osthannoversche Eisenbahnen AG | D | TRAFFIC |
| 45 | ERIXX | erixx GmbH | | DE | VKM |
| 46 | ERIY | EVEREADY INDUSTRIAL SERVICES INC | | | SCAC4 |
