| Abbreviation | Definition |
|---|---|
| EFSB | Entrepreneurship, Family, and Small Business |
| EFSC | Electronic Financial Services Council |
| EFSC | Enterprise Financial Services Corporation |
| EFSI | Embedded Flight Systems Inc |
| EFSL | Eagle Flag Supply Ltd |
| EFSL | Electra Financial Services Ltd |
| EFU | The Eastern Federal Union Insurance |
| EG | Excel General Construction |
| EG&G | Edgerton, Gemerhausen, and Grier |
| EG&G-M | EG&G (Edgerton, Germeshausen, and Grier) Mound Applied Technologies, Incorporated |
| EG&G-M | EG&G Mound Applied Technologies, Incorporated |
| EGC | Electrical Guitar Company |
| EGC | Emerging Growth Company |
| EGCB | Electricity Generation Company of Bangladesh |
| EGCC | Emerging Growth Company Council |
| EGCL | East Gas Company Limited |
| EGCL | Electricity Generation Company Limited |
| EGCO | Thailand's Electricity Generating Public Company Ltd |
| EGDS | Electro Gaz Distribution Services |
| EGG | Edgerton, Gemerhausen, and Grier |