Department of Defense PSC R499 contractors

SUPPORT- PROFESSIONAL: OTHER. Contractors in this PSC lane under Department of Defense.

Agency: Department of Defense

Last updated: April 20, 2026

Visible recipients

315

Mapped obligations

$123,377,461,196

Visible recipients tied to Department of Defense and PSC R499

Arcticom, LLC

Anchorage, AK

Anchorage, AK | 198 awards | Top agency Department of Defense | NAICS 541512

$39,354,701

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

Veterans Ez Info Inc.

San Diego, CA

San Diego, CA | 38 awards | Top agency Department of Veterans Affairs | NAICS 541512

$20,311,565

Guidehouse LLP

Mc Lean, VA

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

$994,296,948

Tista Science And Technology Corporation

Rockville, MD

Rockville, MD | 37 awards | Top agency Department of Veterans Affairs | NAICS 541512

$152,703,476

Chickasaw Advisory Services, LLC

Norman, OK

Norman, OK | 5 awards | Top agency Department of Health and Human Services | NAICS 541519

$40,980,271

Visionary Integration Professionals LLC

Folsom, CA

Folsom, CA | 15 awards | Top agency Department of Homeland Security | NAICS 541512

$62,582,904

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