| Abbreviation | Definition |
|---|---|
| CGE | Consultant Group of Experts |
| CHCG | Capitol Hill Consulting Group |
| CIC | Consultant in Charge |
| CIE | Certified Indoor Environmentalist |
| CIGC | Chartered Industrial Gas Consultant |
| CIPDC | Center for Industry Promotion and Development Consultancy |
| CIPI | Consulting In the Public Interest |
| CITS | Consultant Invoice Transmittal System |
| CLAAS | Consulting Learning as a Service |
| CLCI | Creative Leadership Consultants Inc |
| CLP | Consultant Liaison Program |
| CLP | Consultant Liaison Programs |
| CM | the Consulting Market |
| CMC | Creative Memories Consultant |
| CMCG | California Management Consultant Group |
| CMCG | Contingency Management Consulting Group |
| CMEC | COX McLain Environmental Consulting |
| CMFC | Chartered Mutual Fund Consultant |
| CMID | Consulting, Management, Inspection and Design |
| CMTP-LLC | Coweta MedTech Partners, LLC |