Based on 2011 numbers, the company is the 42nd largest contractor by revenue in the world.

And many small shops are set up to service one or two larger contractors.

Its customers range from large national contractors to local independents.

Prosecutors have said that more than 20 companies, including some of the nation's largest military contractors, are under scrutiny.

The large military contractors have shown little desire or ability to push into alternative fields.

Interviews with some of the largest prime contractors found that none was close to the 5 percent goal.

Lockheed, one of the nation's largest military contractors, agreed to pay the fine.

Privately held, it is one of the largest contractors in the world.

General Dynamics is one of the nation's largest military contractors.

Searches were also made at the offices of several large military contractors.