NPO Energomash
The USAF signed a contract at that time with SpaceX for two launches in 2014 and 2015 to serve as proving flights to support the certification process for the Falcon 9 v1.1 and Falcon Heavy. In April 2014, after the launches were contracted, SpaceX sued the United States Air Force, arguing that the RD-180 engines, produced in Russia by the government owned NPO Energomash and used by the Atlas V, violated sanctions against the Russian government. The USAF and SpaceX settled the lawsuit in Jan 2015 by opening up more launches to competitive bidding. The USAF certified the Falcon 9 in May 2015, and in 2016 SpaceX won a contract under the EELV program to launch a GPS Block III satellite payload to MEO.