| Abbreviation | Definition |
|---|---|
| ETCO | Enjoy The Company Of |
| ETCOM | Efficiency Through COMfort |
| ETD | Effective Training and Development, LTD. |
| ETDC | Environmental Technologies Development Corporation |
| ETDI | Employment Training Designs Inc |
| ETDL | Elevation Training and Development Ltd |
| ETEC | Electric Transportation Engineering Corporation |
| ETEL | Electron Tubes Enterprises, Ltd |
| ETFC | E TRADE Financial Corporation |
| ETFL | 185 Ltd. |
| ETGI | Enforcement Technology Group Inc |
| ETGI | Enhanced Technologies Group Inc |
| ETGI | Environmental Transport Group Inc |
| ETHL | Essar Tele Holding Ltd |
| ETI | Educational Tours Inc |
| ETI | Edwards Technologies Inc |
| ETI | Electron Technologies Inc |
| ETI | Electron Technoloiges, Inc. |
| ETI | Engineering Technologies Inc |
| ETI | Enterprise Technologies Inc |