EFSI
| Acronym | Definition |
|---|---|
| EFSI | Enterprise Financial Solutions, Inc. (equipment leasing) |
| EFSI | Eagle Financial Services, Inc. (Berryville, VA) |
| EFSI | Educational Funding Services, Inc. (student loans) |
| EFSI | Enron Federal Solutions Inc. |
| EFSI | Estimer la Fiabilité d'un Site Internet (French: Estimate the Reliability of a Website) |
| EFSI | Emerald Feng Shui Institute (Seattle, WA) |
| EFSI | Electrical and Fire Safety Inspection |