Thales Group is a French multinational company that designs and builds electrical systems and provides services for the aerospace defence, transportation, and security and identification markets. Thales is a leader in flight avionics and, in the defence segment, specialises in ground radar systems, weapon coordination and missile defence, and air force optronics. In 2018, Thales generated EUR 15.9 billion in revenue. About 36% of revenue comes from aerospace equipment sales and services; 51% comes from defence and security; and transport generates the remainder.