| Rank | Abbreviation | Meaning |
|---|
| ***** | CASG | Canadian Apheresis Study Group
| |
| ***** | CASG | Clinical Audit Steering Group
| |
| ***** | CASG | Campus Academic Standards Group
| |
| ***** | CASG | Central Asia Services Group
| |
| ***** | CASG | Civil Aviation Safety Group
| |
| ***** | CASG | Catalogs and Surveys Group
| |
| ***** | CASG | CANADIAN AEROSPACE GROUP INTERNATIONAL, INC.
| |
| ***** | CASG | CNAD Ammunition Safety Group
| |
| **** | CASG | Custom Automated Systems Group
| |
| **** | CASG | Coordinamento Assistenti Sociali Giustizia
| |
| **** | CASG | Carleton Academic Student Government
| |
| **** | CASG | Central Asian Studies Group
| |
| **** | CASG | Commercial Activities Study Guide
| |
| **** | CASG | Columbus Area Sports Guide
| |
| **** | CASG | Computer Audit Specialist Group
| |
| **** | CASG | Chicagoland Association of S Gaugers
| |
| *** | CASG | Collaborative Antiviral Study Group
| |
| *** | CASG | Civil Avionics Support Group
| |
| *** | CASG | Controlled Address Space for Gateways
| |
| ** | CASG | Canadian Aerospace Group Interna (OTC Bulletin Board [OTCBB])
| |
| ** | CASG | Central Australian Stolen Generations
| |