| Rank | Abbreviation | Meaning |
|---|
| ***** | ICLS | International Cash Letter Service
| |
| ***** | ICLS | Instrument Carrier Landing System
| |
| **** | ICLS | Interim Contractor Logistics Support
| |
| *** | ICLS | International Courtly Literature Society
| |
| *** | ICLS | International Congress on Logistics and SCM
| |
| ** | ICLS | Internet Corporation Listing Service
| |
| ** | ICLS | Institute of Cosmetic Laser Surgery
| |
| ** | ICLS | International Criminal Law Society
| |
| ** | ICLS | Institute for Cultural Landscape Studies
| |
| ** | ICLS | International Center for Language Studies
| |
| * | ICLS | International Conference on Learning Sciences
| |
| * | ICLS | Inter Cultural Language School
| |
| * | ICLS | Institute of Commonwealth Studies
| |
| * | ICLS | International Congregational Life Survey
| |
| * | ICLS | Immediate Cardiac Life Support
| |
| * | ICLS | International Conference on Lao Studies
| |
| * | ICLS | interstrand cross-links
| |
| * | ICLS | International Center for Legal Studies
| |
| * | ICLS | International Criminal Law Services
| |
| * | ICLS | Institute for Christian Legal Studies
| |
| * | ICLS | Imperial College London Sun
| |
| * | ICLS | DNA interstrand cross-links
| |
| * | ICLS | Inland Counties Legal Services
| |
| * | ICLS | Instrumented Collective Learning Situations
| |
| * | ICLS | Inter Cultural Leadership School
| |