| Rank | Abbreviation | Meaning |
|---|
| ***** | INSC | inscuteable
| |
| **** | INSC | Indonesian Society of Cinematographers
| |
| *** | INSC | Integrated Network Solutions Corporation
| |
| *** | INSC | International Nuclear Safety and Cooperation
| |
| *** | INSC | is a non-selective cation current
| |
| *** | INSC | Island National Swim Center
| |
| *** | INSC | Inland Navigation Section Conference
| |
| *** | INSC | Intelligent Network Service Center
| |
| *** | INSC | Interoperable Networks for Secure Communications
| |
| ** | INSC | Instrument for Nuclear Safety Cooperation
| |
| ** | INSC | Inland Northwest Sprint Cars
| |
| * | INSC | International Nonlinear Sciences Conference
| |
| * | INSC | Intelligent Network Server Centers
| |
| * | INSC | International Nuclear Safety Center
| |
| * | INSC | Initiative for Nonprofit Sector Careers
| |
| * | INSC | Iver Nature Study Centre
| |
| * | INSC | International Nathiagali Summer College
| |
| * | INSC | Internet Network Storage Company
| |
| * | INSC | INTERACTIVE SOLUTIONS CORP.
| |
| * | INSC | inscription
| |
| * | INSC | International Nuclear Society Council
| |
| * | INSC | Israeli National Security Council
| |
| * | INSC | Indonesian National Shippers Council
| |
| * | INSC | Istituto di Nostra Signora del Carmelo
| |
| * | INSC | International Nuclear Safety Centre
| |