AETOS was established in 2004 following the strategic merger of three very experienced and matured key Auxiliary Police Forces – PSA Corporation (PSA) (1947), Singapore Technologies Kinetics (ST Kinetics) (1967) and Changi International Airport Services (CIAS) (1981). Together, these three entities brought to AETOS more than 50 years of experience in providing security solutions to Singapore’s key maritime, aviation and infrastructure installations. Over the years, AETOS grew from strength to strength with professionals from the police force, the civil defence force, the military and the public service entities, all bringing with them years of operational experience and know-how.