SITA is a multinational information technology company providing IT and telecommunication services to the air transport industry.

The company provides its services to around 400 members and 2,500 customers worldwide, which it claims is about 90% of the world's airline business.

SITA or Société Internationale de Télécommunications Aéronautiques, was founded in February 1949 by eleven airlines in order to bring about shared infrastructure cost efficiency by combining their communications networks.

[8][9] In 1989 computer reservations systems, aerospace manufacturers, tour operators, airfreight forwarders, airport authorities, and other organizations in the air transport industry began joining SITA as members.

SITA presently operates in over two hundred countries and territories, and its customers include airlines, airports, airfreight — international freight forwarders, travel and distribution — global distribution systems, governments, aerospace, ground handlers and air traffic control.

[10] CHAMP became a fully owned SITA subsidiary at the start of 2022, as an IT company working solely in the air cargo industry, providing services for carriers and distributors.