Top federal contractors for NAICS 561621 and PSC R499 in Virginia.

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Top federal contractors for NAICS 561621 and PSC R499 in Virginia

Ranked contractor profiles for this slice.

Serco INC

Herndon, VA · Department of Defense

$1,004,172,019

Paragon Systems INC

Herndon, VA · Department of Homeland Security

$520,432,734

Centerra Group, LLC

Herndon, VA · Department of Energy

$305,938,174

Chenega Global Protection, LLC

Chantilly, VA · National Aeronautics and Space Administration

$181,910,703

Siemens Government Technologies INC

Arlington, VA · Department of Defense

$111,989,171

Chenega Security International California

Chantilly, VA · Department of the Interior

$15,708,482

Chenega Security International, LLC

Chantilly, VA · Department of Defense

$14,093,569

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