IMS

• Integrated Medical Systems International, a surgical instrument management and clinical consulting company
• Integrated Micro Solutions, a GPU manufacturer
• Intelligent Micro Software, a former developer of Multiuser DOS, REAL/32, and REAL/NG
• International Military Services, a UK Ministry of Defence owned company for selling weapons overseas
• IMS Health, Information Medical Statistics, a US company providing data services for healthcare, ticker symbol NYSE:IMS
• IMS Associates, Inc., an early computer manufacturer
• IMS Bildbyrå, a Swedish stock photograph agency

• IMS International Medical Services, of the State University Medical Center Freiburg, Germany
• Indian Mathematical Society
• Indian Medical Service, a military medical service in British India
• Indian Missionary Society, an Indian Catholic Religious Institute (Varanasi)
• Insight Meditation Society, a Buddhist organization in Barre, Massachusetts
• Institute of Mathematical Statistics
• International Magicians Society
• International Micropatrological Society
• International Military Staff, the executive body of the NATO Military Committee
• International Mountain Society, for mountain research, Bern, Switzerland
• International Musicological Society, a learned society for musicology in Basel, Switzerland
• Irish Marching Society, Rockford, Illinois, US
• Irish Mathematical Society
• Iranian Mathematical Society

• IMS Unison University, formerly Institute of Management Studies
• Institute of Management Studies, Devi Ahilya University, Devi Ahilya University, India
• Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
• Iowa Mennonite School, Iowa, US

• International Military Staff, a body of North Atlantic Treaty Organization.
• International Monitoring System, a division of the Comprehensive Nuclear-Test-Ban Treaty Organization

• IEEE MTT-S International Microwave Symposium, an annual conference
• Immunomagnetic separation, a laboratory technique
• Indian Mini Satellite bus, Indian Space Research Organisation (ISRO)
• Industrial methylated spirit
• Insulated metal substrate, for power electronics
• Intelligent maintenance system, to predict machine failure
• Intelligent Munitions System, American smart mine
• Intermediate shaft, of a car transmission; see Porsche Intermediate Shaft Bearing issue
• Intermediate syndrome, in organophosphate poisoning
• Intramuscular stimulation or dry needling
• Ion mobility spectrometry
• Irritable male syndrome, an annual behavior in some mammals

• IBM Information Management System
• Internet Map Server
• Internet Medieval Sourcebook
• IP Multimedia Subsystem, a framework for delivering services over mobile networks

• Indianapolis Motor Speedway, Speedway, Indiana, US
• Integrated master schedule, a US DoD planning tool
• International Measurement System, a handicapping system used in sailboat racing
• International Music Summit, a yearly dance conference held in Ibiza

• Ims, Norwegian surname

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