do  Roupen Altiparmakian and John Matoian work in the same industry?
Roupen Altiparmakian Roupen Altiparmakian is a master of the violin and oud, born in Adana, Turkey.
Tor Olav Trøim Tor Olav Trøim (born 4 March 1963) is a Norwegian businessman and engineer. He holds a number of executive and board positions in John Fredriksen-controlled companies, and is often described as his right hand.