| Abbreviation | Definition |
|---|---|
| ECDI | Editorial Code and Data Inc |
| ECDI | Elizabeth City Downtown Inc |
| ECDS | Emmanuel Constructions and developments Limited |
| ECE | Educational Credential Evaluators |
| ECE | Excelsior College Exams |
| ECEMS | East Coast Electronic Material Supply |
| ECG | East Central Group |
| ECGC | East Caribbean Group of Companies |
| ECGC | East Coast GigaPoP Consortium |
| ECGC | Essex County Gas Company |
| ECGC | Export Credit and Guarantee Corporation |
| ECGC | Export Credit Guarantee Corporation |
| ECGC | Export Credit Guarantee Corporation of India, LTD. |
| ECGL | Ecolodge Company Ghana Ltd |
| ECH | Electronic Computer Headquarters |
| ECI | Eastern Computers Inc |
| ECI | eCommerce Industries, Inc. |
| ECI | Electrical Consultants Inc |
| ECI | Electrical Consultants, Inc. |
| ECI | Electronics Corporation of Israel |