ISAT

• I.Sat
• Idaho Standards Achievement Test
• Illinois Standards Achievement Test
• In Situ Adaptive Tabulation
• In Stars and Time
• Innovative Space-based Radar Antenna Technology
• Institut supérieur de l'automobile et des transports
• International Schools Association of Thailand
• International Student Admissions Test
• International Subarachnoid Aneurysm Trial
• Internet Security Awareness Training
• Iodine Satellite
• Isat Buchanan