•
Independent Television Authority, the regulator for commercial television in the UK from 1954 until 1972 •
Independent Testing Authority, a certified voting system test laboratory • Indian Television Academy, organization that administers the
Indian Television Academy Awards •
Information Technology Agreement, a treaty on tariff regulation with a committee under the World Trade Organisation •
Institute of Technology Assessment, a research unit of the Austrian Academy of Sciences, Vienna •
Instituto Tecnológico de Aeronáutica or Technological Institute of Aeronautics, a Brazilian engineering college •
Integrated Transport Authority, the UK organisation overseeing Passenger Transport Executives •
Intercollegiate Tennis Association, an organization of coaches and collegiate tennis players •
International Tape Association, former name of the International Recording Media Association •
International Technology Alliance, a research program initiated by the UK Ministry of Defence and the US Army Research Laboratory •
International Testing Agency, an independent anti-doping organisation •
Internationaal Theater Amsterdam, the biggest theatre company of the Netherlands •
International Track Association, an American professional track and field league of the mid-1970s •
International Trade Administration, an agency of the United States Department of Commerce •
Italian Trade Agency, an agency of the Italian Republic that fosters the export of Italian products •
International Trombone Association •
International Tunneling and Underground Space Association •
ITA Airways, an Italian airline that replaced Alitalia (ICAO airline designator) •
ITA Software, a travel industry software company acquired by Google in 2011 •
ITA Transportes Aéreos, a Brazilian airline == Other uses ==