| CSSCS | Certified in Social Security Claiming Strategies 
| Others |
| CSSCS | Colorado Springs Scholastic Chess Series
| Others |
| CSSCS | Combat Service Support Control System
| Others |
| CSSCS | Computer Security Software Consulting Services
| Others |
| CSSCS | Corporation for Social Security Claiming Strategies
| Others |
| CSSCS | Crawford Square Secret Cigar Society
| Others |