| Abbreviation | Definition |
|---|---|
| EM | Elite Merit |
| EM | emergency management |
| EMA | Extended Maintenance Agreement |
| EMAC | Economic Management Advisory Committee |
| EMAS | Electronic Mail Alerting System |
| EMAS | Electronic Managed Automated Solution |
| EMBOK | Engineering Management Body Of Knowledge |
| EMC | Early Management Control |
| EMC | Everyone Meets Customers |
| EMC | Experiential Marketing Communications |
| EMCS | Energy Management Control Systems |
| EMER | Emergency |
| EMG | Enterprise Management Group |
| EMI | Electrical Musical Industries |
| EMI | Electronic and Musical Industries |
| EMIS | Environmental Management Information System |
| EMM | Enterprise Marketing Management |
| EMMA | Enterprise Monitoring and Management of Accounts |
| EMO | Engineering Management Office |
| EMO | Extended Merchandise Overrun |