General Services Administration PSC R499 contractors

SUPPORT- PROFESSIONAL: OTHER. Contractors in this PSC lane under General Services Administration.

Agency: General Services Administration

Last updated: April 17, 2026

Visible recipients

212

Mapped obligations

$89,233,855,234

Visible recipients tied to General Services Administration and PSC R499

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

Maximus Federal Services, Inc.

Mclean, VA

Mclean, VA | 238 awards | Top agency Department of Health and Human Services | NAICS 561422

$5,287,450,628

Bae Systems Technology Solutions & Services Inc.

Rockville, MD

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

$1,052,930,282

Salient Crgt, Inc.

Fairfax, VA

Fairfax, VA | 254 awards | Top agency General Services Administration | NAICS 541512

$1,118,778,810

Parsons Government Services Inc.

Centreville, VA

Centreville, VA | 598 awards | Top agency Department of Defense | NAICS 541712

$1,928,199,424

Kbr Wyle Services, LLC

Fulton, MD

Fulton, MD | 645 awards | Top agency Department of Defense | NAICS 541712

$1,739,708,903

Mantech Advanced Systems International, Inc.

Herndon, VA

Herndon, VA | 683 awards | Top agency Department of Defense | NAICS 541330

$1,244,128,681

Page 2 of 22Prev 1 2 3...22 Next

Agency profile

Loading buyer-level contractor and category paths