| Sequoia Financial Services | 386 | 42 | 96.4% | Debt collection |
| Servatus Corporation | 167 | 23 | 100% | Debt collection |
| Service 1st Mortgage, Inc. | 13 | 1 | 92.3% | Mortgage |
| Service Bureau, Inc. | 19 | 0 | 89.5% | Debt collection |
| Service Finance Holdings, LLC | 170 | 0 | 99.4% | Payday loan, title loan, or personal loan |
| Servicelink Loss Mitigation Services | 15 | 0 | 93.3% | Mortgage |
| Servicemac, LLC | 362 | 129 | 100% | Mortgage |
| Servicer under contract with Federal Student Aid | 4,105 | 3,090 | 0% | Student loan |
| Servicing Solutions, LLC | 193 | 144 | 94.8% | Credit reporting or other personal consumer reports |
| Servion, Inc. | 27 | 10 | 92.6% | Mortgage |
| Servis One, Inc., Titusville, PA Branch | 1,255 | 0 | 97.3% | Mortgage |
| Servisfirst Bancshares, Inc. | 11 | 1 | 100% | Credit reporting or other personal consumer reports |
| Sessoms & Rogers, P.A. | 82 | 0 | 98.8% | Debt collection |
| SET Financial Corporation | 42 | 9 | 97.6% | Debt collection |
| Seterus, Inc. | 4,489 | 0 | 99.7% | Mortgage |
| SettlementOne Valuation, LLC | 26 | 8 | 57.7% | Credit reporting or other personal consumer reports |
| Sezzle Inc. | 1,037 | 576 | 91.1% | Credit reporting or other personal consumer reports |
| Sf Vago, LLC | 126 | 26 | 99.2% | Credit reporting or other personal consumer reports |
| Sfmc L.P. | 34 | 8 | 70.6% | Mortgage |
| SFS, Inc | 65 | 0 | 96.9% | Payday loan |
| SG and Associates | 389 | 152 | 62.7% | Debt collection |
| Shabana Motors | 43 | 22 | 100% | Credit reporting or other personal consumer reports |
| Shapeshift Ag | 10 | 0 | 50% | Money transfer, virtual currency, or money service |
| Shapiro, DiCaro & Barak, LLC | 26 | 0 | 80.8% | Mortgage |
| Shellpoint Partners, LLC | 17,447 | 3,760 | 99.3% | Mortgage |
| Shepherd Outsourcing, LLC | 437 | 286 | 99.8% | Debt collection |
| Sher & Shabsin PC | 14 | 6 | 100% | Debt collection |
| Sherloq Group, Inc | 105 | 8 | 98.1% | Debt collection |
| Shermeta Law Group, PLLC | 125 | 15 | 100% | Debt collection |
| SHM Holdings, LLC | 14 | 1 | 100% | Mortgage |
| ShoulderTap Technologies, Inc. d/b/a Fizz | 31 | 31 | 100% | Credit card |
| Sierra Credit Corp | 22 | 1 | 68.2% | Credit reporting, credit repair services, or other personal consumer reports |
| Sierra Holdings LLC | 118 | 2 | 74.6% | Credit reporting, credit repair services, or other personal consumer reports |
| Sierra Pacific Mortgage | 147 | 4 | 95.2% | Mortgage |
| Siggi LLC | 234 | 0 | 99.1% | Credit reporting, credit repair services, or other personal consumer reports |
| Signature Bank (NY) | 48 | 0 | 100% | Checking or savings account |
| Sigue Corp. | 260 | 3 | 61.5% | Money transfer, virtual currency, or money service |
| Silvergate Capital Corporation | 23 | 0 | 100% | Money transfer, virtual currency, or money service |
| Silverman Theologou, LLP | 54 | 10 | 100% | Debt collection |
| SIMM Associates, Inc. | 540 | 87 | 94.8% | Debt collection |
| Simmons First National Corporation | 331 | 66 | 98.8% | Checking or savings account |
| Simon's Agency, Inc. | 469 | 24 | 90.4% | Debt collection |
| Simple Cash Loans, Inc., | 10 | 0 | 80% | Payday loan, title loan, or personal loan |
| Simpson Law Firm, P.A. | 20 | 3 | 100% | Debt collection |
| SinglePoint GI | 568 | 164 | 99.1% | Debt collection |
| Siwell Inc | 92 | 6 | 92.4% | Mortgage |
| Skagit Bonded Collectors, LLC | 50 | 2 | 100% | Debt collection |
| Sklar Law LLC | 28 | 5 | 78.6% | Debt collection |
| SKO Brenner American, Inc. | 70 | 0 | 100% | Debt collection |
| Skopos Financial, LLC | 428 | 141 | 88.1% | Credit reporting or other personal consumer reports |