Top 10 Companies

Boeing Aircraft Aircraft, defense, security
BAE Systems Electronics, systems integration
Booze Allen Hamilton Consulting to military & federal agencies
General Dynamics Aviation, shipbuilding, technology
L-3 Communications Electronic, systems, cyberspace
Lockheed Martin Aerospace, defense, IT
Northrop Grumman C4ISR, cyber security, logistics
Raytheon Missile defense, C3I, space solutions
SAIC Science, technology, energy
USAA Insurance and investments