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

Leidos, Inc.

Reston, VA

Reston, VA | 9,621 awards | Top agency Department of Defense | NAICS 541512

$4,036,713,756

Merck Sharp & Dohme LLC

Rahway, NJ

Rahway, NJ | 100 awards | Top agency Department of Health and Human Services | NAICS 325412

$4,429,157

Caci Premier Technology, LLC

Chantilly, VA

Chantilly, VA | 5 awards | Top agency Office of Personnel Management | NAICS 561611

$91,769,998

Carahsoft Technology CORP

Reston, VA

Reston, VA | 3,669 awards | Top agency Department of Defense | NAICS 511210

$552,034,202

Battelle Memorial Institute

Richland, WA

Richland, WA | 103 awards | Top agency Department of Energy | NAICS 541710

$492,285,577

Vertex Aerospace LLC

Madison, MS

Madison, MS | 623 awards | Top agency Department of Defense | NAICS 488190

$519,579,690

Alion Science And Technology Corporation

Chicago, IL

Chicago, IL | 5 awards | Top agency Department of Defense | NAICS 541710

$209,517,471

Cgi Federal Inc.

Fairfax, VA

Fairfax, VA | 1,056 awards | Top agency Department of State | NAICS 541512

$792,922,155

General Dynamics Land Systems Inc.

Sterling Heights, MI

Sterling Heights, MI | 819 awards | Top agency Department of Defense | NAICS 336992

$1,037,659,008

Bae Systems Technology Solutions & Services Inc.

Rockville, MD

Rockville, MD | 1,291 awards | Top agency Department of Defense | NAICS 541330

$1,052,930,282

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