| Abbreviation | Definition |
|---|---|
| C-E | Combustion Engineering, Inc. |
| CEA | Concord Estate Agency |
| CEACBA | Cost-Effectiveness Analysis and Cost-Benefit Analysis |
| CEAI | China Education Alliance Inc |
| CEAI | Coggeshall Engineering Associates Inc |
| CEAT | Cavi Electrici Affini Torino |
| CEBC | Canadian Electric Boat Company |
| CEBR | California Engine & Body Repair |
| CEC | Claus Ettensberger Corporation |
| CEC | Communications Engineering Company |
| CEC | Continental Engineering Corporation |
| CEC | Corrective Education Company |
| CEC | Creative Edge Corporation |
| CECCA | Cat Ellington Centaur Casting Agency |
| CECG | Continental Education Consultancy Group |
| CECO | Compressor Engineering Corporation |
| CEDC | Cabrillo Economic Development Corporation |
| CEDC | Central European Development Corporation |
| CEDC | Central European Distribution Corporation |
| CEDC | Clark Electric Distribution Corporation |