| Abbreviation | Definition |
|---|---|
| ERR | Engineering Release Record |
| ERS | Engineering and Research & Development (R&D) Services |
| ERSA | Engineering of Reconfigurable Systems and Algorithms |
| ERSC | Engineering Resources of Southern California |
| ERSG | Engineering Research Staff Group |
| ES | Engineering Sciences |
| ES | Engineering Special |
| ESAC | Engineering Staff Advisory Council |
| ESAS | Engineering Semantic Agent Systems |
| ESC | Early Strength Concrete |
| ESC | Engineering Systems Consultants |
| ESCN | Engineering and Science Career Network |
| ESCN | Engineering Science Career Network |
| ESD | Engineering Systems Division |
| ESDC | Engineering Services for Design and Construction |
| ESDC | Engineering Student Design Center |
| ESDES | Expert System for Design |
| ESDI | Engineering Synthesis Design Inc |
| ESDU | Engineering and Scientific Data Unit |
| ESDU | Engineering Science Data Units |