Muscle (and mind) power
Halliburton. Lockheed Martin. Raytheon. Meet the other top ten federal contractors hired to do heavy lifting for the Department of Defense -- and find out what they've been up to lately.
1. Lockheed Martin Corp.
2. Boeing Co.
3. Northrop Grumman Corp.
4. General Dynamics Corp.
5. Raytheon Co.
6. Halliburton Co.
7. L-3 Communications Holdings
8. United Technologies Corp.
9. SAIC
10. Bechtel Inc.
