| CCEI | Cameron County Education Initiative 
| Others |
| CCEI | Canadian Certified Electrical Inspector
| Others |
| CCEI | Catalysis Center for Energy Innovation
| Others |
| CCEI | Child Care Education Institute
| Others |
| CCEI | Closed Circuit Economic Initiative
| Others |
| CCEI | Connecticut Center for Entrepreneurship and Innovation
| Others |
| CCEI | Coolant Controlled Idle Enrichment
| Others |
| CCEI | Councils on Chiropractic Education International
| Others |
| CCEI | Coupled Cluster Effective Interaction
| Others |
| CCEI | Craftmaster Contour Equipment Inc
| Others |
| CCEI | Crown Crisp Experiential Index
| Others |
| CCEI | Crown Crisp Experimental Index
| Others |
| CCEI | Curriculum Culture and Educational Inquiry
| Others |