Charitable Incorporated Organisation

International Rainbow Clinic Network

International Revival Christian Church

International Seismological Centre

International Shadow Peace Force

International Social Health And Welfare

International Social Welfare Association (Iswa)

International Society For Biomolecular Archaeology

International Society For Equitation Science

International Society For Exercise Neuroscience

International Society For Geographical And Epidemiological Ophthalmology

International Society For The Study Of Drug Policy (Issdp)

International Society Of Economic Criminology

International Society Of Hypertension

International Society Of Qualitative Research In Sport And Exercise

International Sociology Of Sport Association

International Solidarity And Fraternity Association

International Sports Federation for Athletes with an Intellectual Impairment

International Student Mission Housing Trust

International Sustainable Energy Organisation

International Tabernacle of Praise Ministry