EADS 3 Sigma is the name since 2002 (when its majority was acquired by the European EADS Group) of the Greek3 Sigma aerospace company. It was founded in 1987 with headquarters in Athens and production facilities in Chania, Crete. It has designed, produced and exported a variety of Unmanned Aerial Vehicles - including the Iris, Alkyon, Perseas (also available with single- and twin-jet engines), and Nearchos types - as well as various electronics; its areas of research and development, in collaboration with Greek Universities, have included engine and remote control technologies.