| Acronym | Definition |
|---|
| CCSI➣Canon Computer Systems, Inc. |
| CCSI➣Cisco Certified Systems Instructor (training qualification) |
| CCSI➣Checkpoint Certified Security Instructor |
| CCSI➣Computer & Control Solutions, Inc |
| CCSI➣Certified Crime Scene Investigator (International Association for Identification) |
| CCSI➣Contact Center Satisfaction Index |
| CCSI➣Citicorp Credit Services, Inc. (Citibank) |
| CCSI➣Center for Comprehensive School Improvement (McGraw-Hill Companies) |
| CCSI➣Creative Computing Solutions Inc (Rockville, MD) |
| CCSI➣Commission for Social Care Inspection (UK) |
| CCSI➣Canadian Centre for Swine Improvement |
| CCSI➣Company Core Safety Information |
| CCSI➣Child Care Spaces Initiative (British Columbia Assembly of First Nations; Canada) |
| CCSI➣Contemporary Control Systems, Inc |
| CCSI➣Channel Coding with Side Information |
| CCSI➣Consortium for Computational Signal Interpretation |
| CCSI➣Climate Change Science Initiative |
| CCSI➣Coordinating Council for School Improvement |
| CCSI➣Custom Cable Solutions Inc. (Salisbury, MD) |
| CCSI➣Crown Collectors Society International (Fairfax, VA bottle cap collectors club) |