English abbreviations from isa to isba
- ISA (International Standard Atmosphere)
- ISAAA (International Service for the Acquisition of Agri-biotech Applications)
- ISAC (International Schools Athletic Conference)
- ISAF (International Sailing Federation)
- ISAM (Indexed Sequential Access Method)
- ISAP (Individual System Automation Plan)
- ISAPI (Internet Server Application Programming Interface)
- ISAR (Inverse SAR (Synthetic Aperture Radar))
- ISAS ((organization) Institute of Space and Astronautical Science)
- ISAT-SAC (Information Service and Technology - Student Advisory Committee)
- ISB (Intermediate Staging Base)
- ISB1 (Internet Space Builder version 1)
- ISB2 (Internet Space Builder version 2)
- ISB3 (Internet Space Builder version 3)
- ISBA (International Society for Bayesian Analysis)
