IRSI

AcronymDefinition
IRSIIstituto Ricerche Sicurezza Industriale (Italian: Industrial Safety Research Institute; est. 1974; Milan, Italy)
IRSIIntelligent Reasoning Systems, Inc. (software)
IRSIIllinois Retirement Security Initiative (Chicago, IL)
IRSIInvestor Relations Services, Inc. (New Smyrna Beach, FL)
IRSIInstituto de Robótica y Sistemas Inteligentes (Spanish: Institute of Robotics and Intelligent Systems; Universidad de Guadalajara; Mexico; also seen as IRIS)
IRSIInstitute of Regional Studies Islamabad (Pakistan)