Thales Air Defence
 Thales Air Defence Limited formerly Shorts Missile Systems is a defence contractor based in Belfast Northern Ireland producing short-range or close air defence missiles. The company has a turnover of approximately £70m and pre-tax profits of £7m.Shorts Missile Systems (SMS) was established as a joint venture between Shorts' owners Bombardier and Thomson-CSF in 1993. In 2000 Thomson-CSF bought Bombardier's 50% share to become the sole owner.