| Acronym | Definition |
|---|
| ISCS | Integrated Secure Communications System |
| ISCS | Information Security Consulting Services (Versatile Solutions Ltd.) |
| ISCS | Integrated Supply Chain Solutions (various locations) |
| ISCS | International Symposium on Compound Semiconductors |
| ISCS | International Symposium on Circuits and Systems (IEEE) |
| ISCS | International Solar Cycle Studies (study group for solar variability, climate, and space weather) |
| ISCS | International Satellite Communications System |
| ISCS | Income Support Computer System (UK Benefits Agency) |
| ISCS | Interval Specific Congenic Strains |
| ISCS | International Sand Collectors Society |
| ISCS | Integrated Sensor Control System |
| ISCS | Integrated Submarine Communications System |
| ISCS | Integrated Satellite Control System (US Navy MILSATCOM) |
| ISCS | Improved Saturn Communication System (military avionics) |
| ISCS | Integrated Shipboard Communications System |
| ISCS | Intelligent Supply Chain Services (VeriSign) |