Department of Defense PSC R499 contractors in Virginia

SUPPORT- PROFESSIONAL: OTHER. Contractors in this state-buyer-PSC overlap.

Virginia + Department of Defense

Last updated: April 17, 2026

Visible recipients

153

Mapped obligations

$77,850,588,069

Visible recipients tied to Department of Defense, Virginia, and PSC R499

Nana Pacific, LLC

Herndon, VA

Herndon, VA | 20 awards | Top agency General Services Administration | NAICS 517212

$15,915,827

Chenega Global Protection, LLC

Chantilly, VA

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

$168,040,791

Peraton Technology Services Inc.

Chantilly, VA

Chantilly, VA | 259 awards | Top agency General Services Administration | NAICS 541330

$608,923,774

Avantus Federal LLC

Mc Lean, VA

Mc Lean, VA | 95 awards | Top agency Department of Defense | NAICS 541330

$283,437,247

Halvik, LLC

Vienna, VA

Vienna, VA | 202 awards | Top agency Department of Defense | NAICS 541330

$246,009,546

American Systems Corporation

Mclean, VA

Mclean, VA | 295 awards | Top agency Department of Defense | NAICS 541330

$273,552,741

Guidehouse LLP

Mc Lean, VA

Mc Lean, VA | 134 awards | Top agency Department of State | NAICS 541611

$994,296,948

Securigence LLC

Leesburg, VA

Leesburg, VA | 71 awards | Top agency Department of Defense | NAICS 541511

$2,500

Sev1tech, LLC

Woodbridge, VA

Woodbridge, VA | 225 awards | Top agency Department of Defense | NAICS 541712

$77,823,897

Guidehouse Digital LLC

Mc Lean, VA

Mc Lean, VA | 389 awards | Top agency Department of Homeland Security | NAICS 541512

$185,089,927

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