Beltway bandit
Beltway bandit is a term for private companies located in or near Washington, D.C., whose major business is to provide consulting services to the federal government of the United States. The phrase was originally a mild insult, implying that the companies preyed like bandits on the generosity of the federal government, but it has lost much of its pejorative nature and is now often used as a neutral, descriptive term.
The term refers to the Capital Beltway, which is a ring road that surrounds Washington. Many federal government contractors have offices and headquarters near the Beltway because of its proximity to federal agencies and legislators. Civilian contractors tend to locate along the Maryland portion of the Beltway, while defense contractors tend to locate along the Virginia section, which is closer to the Pentagon.