| Abbreviation | Definition |
|---|---|
| EIS | Enterprise Information System |
| EISS | Eauthentication Integration Services Support |
| EKM | Enterprise Knowledge Management |
| EL | Enhanced Latency |
| EL | External Linkages |
| ELAN | Emulated Local Area Network |
| ELAN | European Local Area Network |
| ELAN | Extended Local Area Network |
| ELLB | Every Laptop Left Behind |
| ELMDS | Electronic License Management and Distribution System |
| ELS | Entry Level System |
| ELU | External Loop Unrolling |
| EMA | External Model Access |
| EMB | Extended Multicast Beaming |
| EMF | E-Mail Filtering |
| EMIR | Easy Management for Internet Routers |
| EMM | Enterprise Mobile Messaging |
| EMS | Enhanced Messaging Service |
| EMS | Enhanced Mobile Solution |
| EMS | Enterprise Mobility Server |