| Abbreviation | Definition |
|---|---|
| RUFCU | Rochester Ukrainian Federal Credit Union |
| RVFFCU | Roanoke Virginia Firemen Federal Credit Union |
| SACCO | Savings And Credit Cooperative Organisation |
| SACU | Scott Associates Credit Union |
| SAFE | Secure and Fair Enforcement for Mortgage Lending |
| SBCU | South Bay Credit Union |
| SBSEFCU | San Bernardino School Employees Federal Credit Union |
| SCCU | Sangamo Community Credit Union |
| SCCU | Scotland Community Credit Union |
| SCCU | Shelby County Credit Union |
| SCCU | Simpson Community Credit Union |
| SCFCU | Services Center Federal Credit Union |
| SECU | State Employees' Credit Union |
| SFCU | Saugus Federal Credit Union |
| SFCU | Schools Federal Credit Union |
| SFCU | Schools Financial Credit Union |
| SFCU | Seaford Federal Credit Union |
| SFCU | Sears Federal Credit Union |
| SFCU | Secure First Credit Union |
| SFCU | Sidney Federal Credit Union |