| Acronym | Definition |
|---|
| ITS | Information Technology Services |
| ITS | Information Technology Security |
| ITS | Information Technology Support |
| ITS | Information Technology Service (GSA, formerly IRMS) |
| ITS | Information Technology Solutions |
| ITS | Information Technology Service (SAIC) |
| ITS | Information Technology System |
| ITS | Intelligent Transportation System |
| ITS | Internet Transaction Server (SAP R/3) |
| ITS | Intent to Sue |
| ITS | Intelligent Transportation Society |
| ITS | Intelligent Transport System (NEC) |
| ITS | Intelligent Tutoring System |
| ITS | International Temperature Scale |
| ITS | Information Technology Society |
| ITS | Internal Transcribed Spacer (ribosomal DNA repeating unit) |
| ITS | Integrated Technology Services |
| ITS | I Thought So |
| ITS | International Tracing Service |
| ITS | Inventory Tracking System |
| ITS | Iowa Telecommunications Services Inc |
| ITS | Information Transport Systems (cabling) |
| ITS | Institute for Telecommunication Sciences |
| ITS | Infecciones de Transmisión Sexual (Spanish: Sexually Transmitted Infections) |
| ITS | Internal Tracking System |
| ITS | Integrated Truss Structure |
| ITS | Intermarket Trading System (electronic communications network linking nine markets) |
| ITS | Invitation To Send |
| ITS | International Thespian Society |
| ITS | Information Technology Studies (course) |
| ITS | International Transcription Service |
| ITS | International Travel Survey (Canada) |
| ITS | Integrated Tool Set |
| ITS | Interoperability Test Suite(s) |
| ITS | International Trade Secretariats |
| ITS | Integrated Training System |
| ITS | Interactive Training System |
| ITS | Internet Time Service |
| ITS | Information Technologies Services (Maricopa County, AZ community college system) |
| ITS | Incompatible Time-Sharing System |
| ITS | Integrated Telecom Solutions (Sprint) |
| ITS | Indirect Tensile Strength |
| ITS | International Technical Services |
| ITS | Individual Training Standards |
| ITS | Interconnected Trail System |
| ITS | IOS Telephony Service (Cisco) |
| ITS | Internet Telephony Server (Lucent) |
| ITS | International Treasury Services (US Department of the Treasury) |
| ITS | International Theological Seminary (Bradenton, FL) |
| ITS | Issues in the Theory of Security (workshop) |
| ITS | Informationstekniska Standardiseringen (Swedish: Information Technical Standards) |
| ITS | International Telecommunication Society |
| ITS | International Teleproduction Society |
| ITS | International Total Services, Inc. (service contract company) |
| ITS | International Type Search |
| ITS | Independent Tribunal Service (UK) |
| ITS | Institute of Transportation Studies, UC Berkeley |
| ITS | Internet Technology Series (IETF) |
| ITS | Individual Training System |
| ITS | Intelligence Training System (Intelligence training for branches of DOD at Goodfellow AFB, TX) |
| ITS | Insertion Test Signal (ITU-T) |
| ITS | International Telecommunication Symposium |
| ITS | Integrated Test Stand |
| ITS | International Title Service |
| ITS | Independent Target System (MILES Component) |
| ITS | Inter-Plan Teleprocessing Services (health insurance) |
| ITS | Impactor Target Sensor (Deep Impact cometary probe) |
| ITS | Initial Test Speed (tires) |
| ITS | Intellisys Technology Corporation |
| ITS | Internal Time Slot (AT&T) |
| ITS | Iowa Talent Search (Iowa State University, Ames, Iowa) |
| ITS | Inspection and Test Solutions |
| ITS | Index of Thermal Stress |
| ITS | Integrated Test Schedule |
| ITS | Information Technical Specialist |
| ITS | Integrated Testing Services |
| ITS | Integrated Teaching Systems |
| ITS | Intermediate Transfer Station |
| ITS | Interchange Transaction Scheduling |
| ITS | Intellectual Traffic System |
| ITS | Instrumented TEMPEST Survey |
| ITS | Interim Targeting Solution |
| ITS | Inner Thermal Shield |
| ITS | Inoculation Tracking System (TMIP) |
| ITS | Institute of Telecommunications Standards |
| ITS | Interferometer Thermal Sounder |
| ITS | Infinite Time Slicing |
| ITS | Interim Trainer Support |
| ITS | Information Transmittal Sheet |
| ITS | Intersectional Transportation Service |
| ITS | Imagery Transformation Services |
| ITS | International Translation System (Sprint) |
| ITS | Independent Training Solutions Ltd (UK) |
| ITS | Interagency Testing Committee Tracking System (EPA) |
| ITS | Improved Tracking and Service (USPS) |
| ITS | Interactive Training Simulation/System |
| ITS | Integrated Turf Solutions |
| ITS | Installation Telecommunications System |
| ITS | Integrated Transition Schedule |
| ITS | Information Transfer System/Service |
| ITS | Interim Transition Schedule |
| ITS | International Technology and Sensors |
| ITS | Imagery Transfer Server |
| ITS | Indianhead Transit Service |
| ITS | International Turnkey Systems (Kuwait) |
| ITS | International Tax Structures (social network group; XING) |
| ITS | In the Spotlight (Boulder, CO) |
| ITS | Internet Technology Solutions (various locations) |
| ITS | Islamic Thinkers Society (New York, NY) |
| ITS | Incidental Take Statement |
| ITS | Important To Safety |
| ITS | In The Soup |
| ITS | Infrastructure Technology Solutions (various locations) |
| ITS | Insolvency and Trustee Service (Australia and New Zealand) |
| ITS | Inmate Tracking System (wireless network; criminal justice) |
| ITS | Instructional Technology Specialist (various schools) |
| ITS | International Trade Specialist |
| ITS | Integrated Technical Solutions, Inc. (Lorton, VA) |
| ITS | Intertek Testing Services |