Electro Optic Systems Holdings Limited develops, manufactures, and sells telescopes and dome enclosures, laser satellite tracking systems, and electro-optic fire control systems in Australia, the United States, Singapore, the Middle East, Germany, and internationally. It operates through Defense Systems, Space Systems, and Communication Systems segments. The Defense Systems segment develops, manufactures, and markets fire control, surveillance, and weapon systems to military customers. It also provides sensors; and fire control software products. The Space segment designs, manufactures, and delivers sensors and systems for space situational awareness and space control. Its products include debris management space systems, defense missiles, optical communications systems, surveillance systems, and space products, such as observatories, telescopes, and laser products and electronics. This segment also manufactures and sells microwave satellite dishes and receivers. The Communication Systems segment offers optical, microwave, and on-the-move radio, and satellite products. Electro Optic Systems Holdings Limited was founded in 1983 and is based in Hume, Australia.