| Acronym | Definition |
|---|
| CESI➣Centro Elettrotecnico Sperimentale Italiano (Italy) |
| CESI➣Chauffe-Eau Solaire Individuel |
| CESI➣Canadian Educational Standards Institute |
| CESI➣Centre d'Etudes Superieures Industrielles (French) |
| CESI➣Confédération Européenne des Syndicats Indépendants (French: European Confederation of Independent Trade Unions |
| CESI➣Critical Ecosystem Studies Initiative |
| CESI➣Catalytica Energy Systems Inc |
| CESI➣Computer Education Society of Ireland |
| CESI➣Community Empowerment and Social Inclusion |
| CESI➣Cat Eye Syndrome International |
| CESI➣Center for Education and Counselling of Women |
| CESI➣Centro di Scienze dell'Invecchiamento (Italian) |
| CESI➣Cardiac Electrophysiological Simulation |
| CESI➣Clinical Evaluation and Services Initiative |
| CESI➣Cervical Epidural Steroid Injection |
| CESI➣Collarini Energy Staffing, Inc. (Houston, TX) |
| CESI➣Council of Elementary Science International |
| CESI➣Chinese Electronic Standardization Institute |
| CESI➣Center for Economic and Social Information (UN) |
| CESI➣Committee on Environmental and Social Impacts |
| CESI➣Computerized Enrollment System for Instructors |
| CESI➣Capitol Environmental Services Inc. |
| CESI➣Communications-Electronics Standing Instruction |
| CESI➣Center for Economic and Social Inclusion |
| CESI➣Computer Educational Support Initiative (Lagos, Nigeria) |
| CESI➣Certification Exhaust System Inspector |
| CESI➣Continuing Education Services Inc. |
| CESI➣Communications and Electrical Supplies Inc. |
| CESI➣Centre d'Exploitation des Services Internet (French) |
| CESI➣Capitol Exhibit Services, Inc. (Manassas, VA) |