PT. SAS Aero Sishan is a holding company for the defense industry engaged in the development of aerospace and defense systems which was founded in 2011.SAS combines expertise from founders’ expertise, previous experience, and newly recruited aerospace experts to tackle challenges in the Indonesian aerospace & defense industry. PT. SAS Aero Sishan oversees several subsidiaries companies engaged in various sectors. The subsidiaries include PT. SAS Andalan Sinergi, PT. SAS Segara Rekateknik, dan PT. SAS Intereka Sistem.