- The Boeing Company [NYSE: BA] has signed an associate contractor’s agreement (ACA) with five other aerospace companies. All will work together on the Ares I upper stage. The agreement will save NASA time and resources by ensuring its contractors work together seamlessly. The ACA was formed with those companies that have key contracts with Marshall Space Flight Center (MSFC) in Huntsville, Alabama, on the Ares I upper stage. Participating companies include Aerojet, Boeing, Hamilton Sundstrand, Jacobs Engineering Group Inc., Moog Inc., and Teledyne Brown Engineering Inc.—St. Louis, Missouri


