Abbreviations beginning with i

ITRTInternational Thesaurus of Refugee Terminology (est. 1988; UN High Commissioner for Refugees)
Miscellaneous

ITRUIdentity Theft Recovery Unit (various companies)
Business

ITRUIntertrust Technologies Corporation
Business » NASDAQ Symbols

ITRUInstructional Technology Resource Unit (University of Dar Es Salaam; Tanzania)
Community

ITRUInformation Technology Research Unit
Computing » Technology

ITRUItel Containers International Corporation
Regional » Railroads

ITRUSInformation Technology Reuse
Academic & Science

ITRUSInformation Technology Reuse & Software Reuse Program
Academic & Science

ITRVIncome Tax Return Verification
Business » Tax

ITRWIn The Real World
Computing » IT

ITRWIn The Real World
Miscellaneous

ITRWISCA Tutorial and Research Workshop
Miscellaneous » Unclassified

ITRZInterrail Transport
Regional » Railroads

ITSImagery Transfer Server
Academic & Science

ITSImpactor Target Sensor (Deep Impact cometary probe)
Academic & Science

ITSIncompatible Time-Sharing System
Academic & Science

ITSIndex of Thermal Stress
Academic & Science

ITSIndirect Tensile Strength
Academic & Science

ITSInfecciones de Transmisión Sexual (Spanish: Sexually Transmitted Infections)
Academic & Science