| Abbreviation | Definition |
|---|---|
| CRTS | Commercial Recreation and Tourism Section |
| CRVI | Clinch River Valley Initiative |
| CRVI | Crystal Run Village Inc |
| CS | Capital Sum |
| CS | Clearing System |
| CS | Consulting Skill |
| CS | Consumer Spending |
| CS | Control Supplies |
| CSA | Canadian Standard Association |
| CSA | Canadian Standards Association |
| CSA | Continental Security Agency |
| CSA | Conway Steuernagel And Ahern |
| CSAA | Cabral Saraiva Associated Architects |
| CSAA | Cabral & Saraiva Associated Architects |
| CSAA | Central Station Alarm Association |
| CSAB | Cadbury Schweppes Americas Beverages |
| CSAC | Canal Shipping Agencies Company |
| CSAG | Canal Shipping Agencies Group |
| CSAG | Conflict Securities Advisory Group |
| CSAH | Computer Solutions @ Home |