| CECS | Candle Electronic Customer Support 
| Others |
| CECS | Canine Epileptoid Cramping Syndrome
| Others |
| CECS | Casualty Evacuation Control Ship
| Others |
| CECS | Certified Exhaust Cleaning Specialist
| Others |
| CECS | Certified Expert Cloud Security
| Others |
| CECS | Chronic Exertional Compartment Syndrome
| Others |
| CECS | Civil Engineering Consulting Services
| Others |
| CECS | College of Engineering and Computational Sciences
| Others |
| CECS | College of Engineering and Computer Science
| Others |
| CECS | College of Engineering and Computer Sciences
| Others |
| CECS | College of Engineering and Computer Studies
| Others |
| CECS | College of Engineering Computational Sciences
| Others |
| CECS | College of Engineering Computer Science
| Others |
| CECS | College of Engineering Computing Services
| Others |
| CECS | Community Engagement and Constituent Services
| Others |
| CECS | Computer Engineering and Computer Science
| Others |
| CECS | Computer Engineering Computer Science
| Others |
| CECS | Computers in Education and Cognitive Systems
| Others |
| CECS | Connecticut Educator Certification System
| Others |
| CECS | Construction Electrician Senior Chief Petty Officer
| Others |
| CECS | Convenience Efficiency Comfort And Security
| Others |
| CECS | Crankcase Emission Control System
| Others |
| CECS | Critical Ethnic and Community Studies
| Others |
| CECS | Crom Engineering and Construction Services
| Others |