ITIS
ITIS is best known as the Integrated Taxonomic Information System, a global database of species names, while the acronym also crops up for several technology‑focused service providers and testing tools.
Miscellaneous
Information Techniques For Irrigation Systems
Integrated Transport Information System
Internal Trouble In Stomach
Istituto Tecnico Industriale Statale
Community
Governmental
Interim Test Item Simulator
Institute Traditional Islamic Studies
International Trade Institute of Singapore
Computing
Industry Technology Intelligence Services
Integrated Taxonomic Information System
Industrial Technology Information Services
Industrial Technology Intelligence Services
Information Technology Infrastructure Services