| Abbreviation | Definition |
|---|---|
| CISR | Center for Insurance Studies and Research |
| CISR | Certified Insurance Service Rep |
| CISR | Certified Insurance Service Representatives |
| CISR | Certified Insurance Services Representative |
| CIU | Commercial Insurance Underwriters |
| CLHIA | Canadian Life and Health Insurance Association |
| CLIS | Canadian Labour Insurance Services |
| CLTIC | Commonwealth Land Title Insurance Company (Pennsylvania) |
| CLUE | Claim Loss Underwriting Exchange |
| CLUE | Comprehensive Liability Underwriting Exchange |
| CLUE | Comprehensive Loss Underwriting Exchange |
| CMI | Crew Maintenance and Insurance |
| CMIB | Cabinet Makers Insurance Brokers |
| CMIG | Callister Musico Insurance Group |
| CMIPC | Capital Markets Insurance and Pension Committee |
| CMPI | Custodial Money Protection Insurance |
| COB | Coordinating Of Benefits |
| COI | Costs of Insurance |
| COIN | California Organized Insurance Network |
| COLI | Company Owned Life Insurance |