Alion Science and Technology Corp., Applied Research Associates, Inc., Engility Corporation, Exelis Inc., Northrop Grumman Systems Corporation, Raytheon Co. and Leidos, Inc. Wins the $4 Billion Federal Contract

Alion Science and Technology Corp., Applied Research Associates, Inc., Engility Corporation, Exelis Inc., Northrop Grumman Systems Corporation, Raytheon Co. and Leidos, Inc. Wins the $4 Billion Federal Contract