Subsidiary of state-owned Rostec.
"Rostec Helicopters was also in talks with Iran to sell new Russian medical helicopters. Rostec will also repair and upgrade a fleet of 50 Russian helicopters now operating in Iran." (AFP, "Work on new Russian nuclear reactors in Iran 'to start next week,'" 12/22/15)
"The Russian Helicopters Company has signed contracts with the Iranian Helicopter Support and Renewal Company (PANHA) on upgrading its maintenance and overhaul facility for Mi-17 helicopters, the Russian company's deputy head said Wednesday. Two contracts have been reached to 'in compliance with the memorandum signed in October 2015 with the PANHA factory on its retrofitting,' Alexander Shcherbinin told RIA Novosti at the Dubai Airshow in the United Arab Emirates." (Tehran Times, "Russia, Iran sign deal on Mi-17 helicopter service center upgrade," 11/12/15)