Clients in need of highly skilled technical and other personnel might want to take the pledge of Allegis. The group is one of the world's largest staffing and recruitment firms. Among its companies are Aerotek (engineering, automotive, and scientific professionals), Stephen James Associates (recruitment for accounting, financial, and cash management positions), and TEKsystems (information technology staffing and consulting). Other Allegis units include sales support outsourcer MarketSource. Chairman Jim Davis helped found the company (originally known as Aerotek) in 1983 to provide contract engineering personnel to two clients in the aerospace industry.