CAAS stands for;
CAAS Civil Aviation Authority of Singapore
CaaS Communications-as-a-Service (outsourcing model for enterprise communications)
CAAS Classical Association of the Atlantic States (est. 1907)
CAAS Commission on Accreditation of Ambulance Services
CAAS Common Avionics Architecture System
CAAS Crimeware as a Service (computing)
CAAS Center for Alcohol and Addiction Studies
CAAS Cognition-as-a-Service
CAAS Chet Atkins Appreciation Society (Nashville, TN)
CAAS Chinese Academy of Agricultural Science
CAAS Central Arkansas Astronomical Society
CAAS Cardiovascular Angiography Analysis System
CaaS Compiler-as-a-Service
CAAS Canadian Association of African Studies
CAAS Centre for Academic and Administrative Studies (India)
CaaS Compute-as-a-Service (Verizon)
CAAS Criticality Accident Alarm System (nuclear)
CAAS Center for Afro-American and African Studies
CAAS Contractor Advisory and Assistance Services
CAAS Cruise Agent Accreditation Scheme (PSARA; United Kingdom)
CAAS Common Aviation Architecture System (US DoD)
CAAS Contract Advisory Assistance Services
CAAS Chloride Aqueous Actinide Separation