| Acronym | Definition |
|---|
| ICGS➣Integrated Coast Guard Systems (Lockheed Martin/Ingalls joint venture) |
| ICGS➣International Center for Graduate Studies (University of Hamburg; Germany) |
| ICGS➣Intelligent Computer Graphics System (Verizon) |
| ICGS➣Irish Chemists Golf Society |
| ICGS➣International Centre for Geopolitical Studies (Switzerland) |
| ICGS➣International Classification of Goods and Services (World Intellectual Property Organization) |
| ICGS➣International Catholic Girls' Society |