| Acronym | Definition |
|---|
| ECPI | East Coast Polytechnic Institute (various locations) |
| ECPI | European Council for Plasticisers and Intermediates (European plasticiser trade association) |
| ECPI | Exxon Chemical Patents, Inc. |
| ECPI | Entreprise Cléonnaise Plastiques Industriels (French: Cléonnaise Industrial Plastics Company; Cléon, France) |
| ECPI | Electronic Crime Partnership Initiative |
| ECPI | EasyCall Communications Philippines Inc. |
| ECPI | Electronic Computer Programming Institute |
| ECPI | Early Career Principal Investigator |
| ECPI | Electronic College of Process Innovation |
| ECPI | Electronic Corporate Pages, Inc. |
| ECPI | Environmental Construction Products International, Inc. |
| ECPI | Enhanced Proliferation Control Initiative |
| ECPI | Echinochloa Picta |
| ECPI | East Coast Pinochle Invasion |
| ECPI | Electronics, Communications, Programming and Information |
| ECPI | Electronics, Communications, Programming and Information Systems |
| ECPI | Equitable Classroom Practices Institute |