| Abbreviation | Definition |
|---|---|
| ERGO | Ergo Science Corporation |
| ERICY | L. M. Ericsson Telephone Company |
| ERICZ | L. M. Ericsson Telephone Company |
| ERIE | Erie Indemnity Company |
| ERIF | Erie Family Life Insurance Company |
| ERNDY | East Rand Property Mines |
| EROX | Human Pheromone Sciences, Inc. |
| ERTE | EntrePort Corporation |
| ERTH | EarthShell Corporation |
| ERTH | Environmental Recovery Through Hydromechanics |
| ERTS | Electronic Arts, Inc. |
| ESAF | AFLINK Corporation |
| ESAF | SAFLINK Corporation |
| ESAT | Esat Telecom Group, P. L. C. |
| ESBF | E S B Financial Corporation |
| ESBFP | E S B Financial Corporation Preferred |
| ESBK | Elmira Savings Bank, F S B |
| ESCA | Escalade, Inc. |
| ESCC | Evans & Sutherland Corporation |
| ESCI | Earth Sciences, Inc. |