| Abbreviation | Definition |
|---|---|
| DPR | Department of Petroleum Resources |
| DRM | Device Resource Management |
| DU | Deutsch Connectors |
| DV | Delavan |
| DW | Dwyer Instruments |
| DWOI | Detective Working On India |
| EASO | European Aviation Suppliers Organisation |
| EC | ESC Electronics |
| ECTS | European Ceramic Technology Suppliers |
| ED | Edison Daven |
| EG | E G & G |
| EH | ETS- Hokin, Galvan, & Hood |
| EISS | European Image Salon Suppliers |
| EJ | E. F. Johnson |
| EL | ElectroMotive |
| EM | ElectroMechanical |
| EN | Electro Nuclear |
| ER | Erie |
| ESMA | Essential Service Management Act |
| ESSG | Event and Stadium Suppliers Group |