Idle Speed Control Actuator - Automotive engineering
Independent Safety Consultants Association (DBA)
Independent Schools Classical Association (SAUO)
Indiana State Chiropractic Association (EARSL)
Industrial Specialty Chemical Association (EA)
Information Systems Consultants Association (NTPA)
Integrated Systems Control Architecture (SAUO)
Intelligent Synchronous Communication Adapter (SAUS)
Interest Standby Credit Arrangement
Interlake Sailing Class Association (EA)
International Sailing Craft Association - Exeter, Devonshire, England (EAIO)
International Scientific Collectors Association (EA)
International Secretariat of Christian Artists (SAUO)
International Senior Citizens Association (EA)
International Shooting Coaches Association (EA)
International Show Car Association (EA)
International Society of Copier Artists (EA)
International Specialty Car Association (EA)
International Speedway Corp. - NASDAQ symbol (SAG)
International Stamp Collectors Association (SAUO)
International Standards Coordination Association (SAUO)
International Standards Steering Committee for Consumer Affairs (SAUO)
International Stewards and Caterers Association (SAUO)
International Sunfish Class Association (EA)
International Symposium on Computer Architecture (SAUS)
International Symposium on Computer Arithmetic (SAUS)
Inter-Society Committee on Methods for Ambient Air Sampling and Analysis (SAUO)
Ionization Spectroscopy for Chemical Analysis (DB)
Iowa Student Computer Association (SAUO)
Irish Setter Club of America (EA)