| COLLECTION PROFESSIONALS INC (Illinois) | 43 | 0 | 95.3% | Debt collection |
| Collection Professionals, Inc. | 161 | 54 | 96.9% | Debt collection |
| Collection Professionals, Inc. (Macomb, IL) | 73 | 31 | 93.2% | Debt collection |
| Collection Receivables, Inc. | 171 | 84 | 98.8% | Debt collection |
| Collection Resources, Inc. | 56 | 6 | 78.6% | Debt collection |
| Collection Service Center, Inc. | 84 | 1 | 98.8% | Debt collection |
| Collection Service of Nevada | 112 | 31 | 92.9% | Debt collection |
| Collection Service, Inc. | 17 | 3 | 70.6% | Debt collection |
| Collection Services of Athens, Inc. | 183 | 0 | 80.3% | Debt collection |
| Collection Services, Inc. | 27 | 0 | 70.4% | Debt collection |
| Collection Technology Incorporated | 62 | 1 | 85.5% | Debt collection |
| Collections Acquisition Company, Inc. | 245 | 44 | 97.6% | Debt collection |
| Collections Inc | 21 | 0 | 95.2% | Debt collection |
| Collections Unlimited of Texas Inc | 47 | 1 | 70.2% | Debt collection |
| Collections USA, Inc. | 177 | 48 | 95.5% | Debt collection |
| College Assist | 44 | 3 | 100% | Student loan |
| College Ave Student Loan Servicing, LLC | 183 | 54 | 99.5% | Student loan |
| College Foundation, Inc. | 128 | 17 | 100% | Student loan |
| College Loan Corporation | 30 | 0 | 86.7% | Student loan |
| Collins Asset Group, LLC | 242 | 3 | 82.6% | Debt collection |
| Colony Brands, Inc. | 2,678 | 460 | 81.4% | Credit reporting, credit repair services, or other personal consumer reports |
| Colony Ridge Inc. | 13 | 8 | 84.6% | Mortgage |
| Colorado Housing and Finance Authority | 141 | 14 | 95% | Mortgage |
| Colten Mortgage, LLC | 11 | 1 | 90.9% | Mortgage |
| Columbia Banking System, Inc. | 277 | 99 | 100% | Checking or savings account |
| Columbia Collection Service, Inc. | 80 | 16 | 56.3% | Debt collection |
| Columbia Collectors Inc | 36 | 9 | 50% | Debt collection |
| Columbia Recovery Group LLC | 70 | 0 | 55.7% | Debt collection |
| Comerica | 7,908 | 1,322 | 99.7% | Credit card or prepaid card |
| Commerce Bank | 991 | 162 | 98.3% | Checking or savings account |
| Commerce Home Mortgage, Inc | 51 | 4 | 84.3% | Mortgage |
| Commercial Acceptance Company | 351 | 89 | 94.3% | Debt collection |
| Commercial Credit Counseling Services Inc. | 12 | 3 | 58.3% | Debt or credit management |
| Commercial Industries Services Company, Inc. | 21 | 5 | 81% | Debt collection |
| Commercial Recovery Systems | 214 | 0 | 46.3% | Debt collection |
| Commercial Services Group, Inc. | 17 | 5 | 88.2% | Debt collection |
| Commercial Trade, Inc. | 102 | 8 | 100% | Debt collection |
| Common Wealth Mortgage Services | 22 | 1 | 95.5% | Mortgage |
| CommonBond, Inc. | 41 | 1 | 73.2% | Student loan |
| Commonwealth Financial Systems, Inc. | 4,136 | 0 | 95.2% | Debt collection |
| Commonwealth Health Corporation | 74 | 19 | 95.9% | Debt collection |
| Community Cash Management Corp. | 52 | 7 | 90.4% | Debt collection |
| Community Choice Financial, Inc. | 1,203 | 0 | 93.4% | Debt collection |
| Community Financial System, Inc. | 196 | 37 | 98% | Checking or savings account |
| Community Health Investment Company, LLC. | 208 | 17 | 100% | Debt collection |
| Community Loan Servicing, LLC (formerly known as Bayview Loan Servicing, LLC) | 4,013 | 23 | 98.6% | Mortgage |
| Community Reinvestment Fund | 20 | 3 | 95% | Credit reporting, credit repair services, or other personal consumer reports |
| Como Law Firm P.A. | 15 | 0 | 93.3% | Debt collection |
| Compass Recovery Group, LLC | 66 | 10 | 98.5% | Debt collection |
| Compattia Roccia Management Group, LLC | 10 | 2 | 80% | Debt collection |