| CASI | Canadian Aeronautics and Space Institute 
| Others |
| CASI | Canadian Association Of Snowboard Instructors
| Others |
| CASI | Canadian Atv Safety Institute
| Others |
| CASI | Career Award at the Scientific Interface
| Others |
| CASI | Carson Animal Services Initiative
| Others |
| CASI | Center for the Advanced Study of India
| Others |
| CASI | Ceramic Artist Studio Inc
| Others |
| CASI | Certification Assessments and Standards Interface
| Others |
| CASI | Certified Access Specialist Institute
| Others |
| CASI | Championship Auto Shows Inc.
| Others |
| CASI | Chili Appreciation Society International
| Others |
| CASI | China Aerospace Studies Institute
| Government, Military, Air Force, Organization |
| CASI | Clinical And
| Others |
| CASI | Clinical and Scientific Insights
| Others |
| CASI | Cognitive Abilities Screening Instrument
| Others |
| CASI | Cold Atom Sagnac Interferome
| Others |
| CASI | Cold Atom Sagnac Interferometer
| Others |
| CASI | Colorado Asphalt Services Inc
| Others |
| CASI | Community Action of Southern Indiana
| Others |
| CASI | Compact Airborne Spectrographic Imager
| Others |
| CASI | Companion Animal Sciences Institute
| Others |
| CASI | Complex Adaptive Systems Initiative
| Others |
| CASI | Comprehension Attitude Strategies Interests
| Others |
| CASI | Computer Aided Social Interaction
| Others |
| CASI | Computer Aided Spatial Informatics
| Others |
| CASI | Computer Assisted Self Interviewing
| Others |
| CASI | Computer Automated Systems Inspector
| Others |
| CASI | Computer-Assisted Self Interviewing
| Others |
| CASI | Conservation Agriculture Systems Innovation
| Others |
| CASI | Continental Air Services, Inc
| Others |
| CASI | The Canadian Aeronautics And Space Institute
| Others |