| EISA | Edge Internet Services Australia 
| Others |
| EISA | Electoral Institute of Southern Africa
| Others |
| EISA | Electronic Interconnection Security Agreement
| Others |
| EISA | Energy Independence and Security Act
| Others |
| EISA | European Imaging and Sound Association
| Others |
| EISA | European Imaging Sound Association
| Others |
| EISA | European Initiative for Sustainable Development in Agriculture
| Others |
| EISA | Everton Independent Supporters Association
| Others |
| EISA | Expanded International Standards Association
| Others |
| EISA | Experiencias Industriales, S. A.
| Others |
| EISA | Extended Industry Standard Archetecture
| Others |
| EISA | Extended Industry Standard Architecture
| Others |