Singleton, now assisted by Roberts, continued in acquiring new companies. In 1967, one of the largest of these was Brown Engineering, a firm with about 3,500 employees headquartered in Huntsville, Alabama. With NASA and DoD contracts for engineering services and research, Brown Engineering added a new line of business for Teledyne. Ryan Aeronautical in San Diego, was acquired in 1968. Continental Motors was primarily owned by Ryan, and this acquisition brought Teledyne into the piston-powered engine business with both commercial and military customers.