Department of Health and Human Services NAICS 561621 and PSC R499 contractors in Virginia

Security Systems Services (except Locksmiths). SUPPORT- PROFESSIONAL: OTHER. Deepest cross-filter overlap.

Virginia · Department of Health and Human Services

Last updated: April 17, 2026

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$5,536,585,623

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Visible recipients tied to Department of Health and Human Services, Virginia, NAICS 561621, and PSC R499

Serco INC

Herndon, VA

Herndon, VA | 1,016 awards | Top agency Department of Defense | NAICS 541330

Paragon Systems INC

Herndon, VA

Herndon, VA | 691 awards | Top agency Department of Homeland Security | NAICS 561612

Chenega Global Protection, LLC

Chantilly, VA

Chantilly, VA | 371 awards | Top agency National Aeronautics and Space Administration | NAICS 561612

Chenega Security International, LLC

Chantilly, VA

Chantilly, VA | 28 awards | Top agency Department of Defense | NAICS 561612

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