| Rank | Abbreviation | Meaning |
|---|
| ***** | EFSL | Emace Foundation of Sri Lanka
| |
| **** | EFSL | Electra Financial Services Ltd
| |
| **** | EFSL | Evangelical Fellowship of Sierra Leone
| |
| *** | EFSL | Emergency Food Security and Livelihood
| |
| *** | EFSL | Elements of Federal Securities Law
| |
| *** | EFSL | European Forum for Sign Language
| |
| *** | EFSL | English as a Foreign or Second Language
| |
| *** | EFSL | Embedded File System Library
| |
| *** | EFSL | Ethics as the Foundation for Supervision and Leadership
| |
| *** | EFSL | European Forces Swim League
| |
| *** | EFSL | Education for Sustainable Living
| |
| *** | EFSL | European Financial Services Law
| |
| ** | EFSL | Eagle Flag Supply Ltd
| |
| ** | EFSL | Executive Fire Service Leadership
| |
| ** | EFSL | Elite Futures Soccer League
| |
| ** | EFSL | Elma Form Specification Language
| |
| * | EFSL | Elite Flight Solutions, Inc.
| |
| * | EFSL | Extended French Second Language
| |
| * | EFSL | Edmonton Finacial Slo-Pitch League
| |
| * | EFSL | Extended French as a Second Language
| |
| * | EFSL | End of Functional Service Life
| |