| CASB | Cake At Stake Battle 
| Others |
| CASB | California School of Business
| Others |
| CASB | California Southern Bankruptcy Court (U.S. Bankruptcy Court for the Southern District of California)
| Others |
| CASB | Canadian Aviation Safety Board
| Others |
| CASB | Catholic Apologetics Study Bible
| Others |
| CASB | Chinese Academy of Sciences Beijing
| Others |
| CASB | Chinese Association for Science and Business
| Others |
| CASB | Citizen's Association of Sunset Beach
| Others |
| CASB | Citizens Accounting Standards Board (Ohio)
| Others |
| CASB | Civil Aviation Safety Bureau
| Others |
| CASB | Cloud Access Security Broker
| Others |
| CASB | Cloud Access Security Brokers
| Others |
| CASB | Cloud App Security Broker
| Others |
| CASB | Cloud App Service Broker
| Others |
| CASB | Cloud Assess Security Broker
| Others |
| CASB | College of Arts Sciences and Business
| Others |
| CASB | Colorado Association of School Boards
| Others |
| CASB | Corel Approved Service Bureau
| Others |
| CASB | Cost Accounting Standards Board
| Others |
| CASB | Council of Agencies Serving the Blind
| Others |