| Abbreviation | Definition |
|---|---|
| ESI | Express Scripts Inc |
| ESIC | Early Stage Innovation Company |
| ESIC | EasyLink Services International Corporation |
| ESIC | Economic and Social Inclusion Corporation |
| ESIG | Environmental And Societal Impacts Group |
| ESIG | Epscor Science Information Group |
| ESIS | Executive Search Information Services |
| ESL | Eighteenth Street Lounge |
| ESM | Electrical Systems Management, Ltd. |
| ESMA | European Sports Medicine Associates |
| ESMC | Eastern Seaboard Models Corporation |
| ESML | Essar Steel Minnesota LLC |
| ESMT | Equine Sports Massage Therapists |
| ESN | European Services Network |
| ESO | Excel Sports Officiating |
| ESOC | Environmental and Social Oversight Consultant |
| ESP | Easy Software Products |
| ESP | Electric Sound Products |
| ESP | Enterprise Services Partner |
| ESP | Eric Shinn Productions |