- ISIS
- Institute for Science and International Security (Community » Non-Profit Organizations)**** Institute of Strategic and International Studies (Community » Non-Profit Organizations)**** Institute for Software Integrated Systems (Academic & Science » Universities)*** Integrated Student Information System (Academic & Science » Universities)** International Species Information System (Academic & Science » Botany)** International Species Information System (Medical » Veterinary)** International Security Information Service (Governmental » US Government)* Integrated Scientific Information System (Computing » General)* Internet Student Information System (Community » Educational)* Image and Scanner Interface Specification (Computing » Hardware)* Image and Scanner Interface Specification (Computing » Software)* International Spa Importing Specialists (Business » Firms)* Integrated Surface Irradiance Study (Academic & Science » Ocean Science)* Independent Schools Information Service (Community » Educational)* Intelligent Sensing for Innovative Structures (Academic & Science » Architecture)* Internet Service Information System (Business » General)* Integrated Spatial Information System (Computing » General)* Innovative Student Information Services (Academic & Science » Universities)* Iowa Student Information Services (Community » Educational)* Interactive Student Information System (Academic & Science » Universities)* International Spline Interface Standard (Computing » Software)* Integrated Signals Intelligence System (Governmental » Military)* Independence Square Income Securities (Business » NASDAQ Symbols)* Integrated Systems for Installation Support (Governmental » Military)* International Studies for Indiana Schools (Community » Educational)* Integrated Strategic Investment System (Business » General)
Abbreviations dictionary. 2012.