NAICS 561210 and PSC R499 contractors

Facilities Support Services. SUPPORT- PROFESSIONAL: OTHER. Cross-code contractor overlap.

NAICS 561210 + PSC R499

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$30,917,445,763

State overlap

Top recipients

Visible recipients in the NAICS 561210 and PSC R499 overlap

National Security Technologies, LLC

North Las Vegas, NV

North Las Vegas, NV | 5 awards | Top agency Department of Energy | NAICS 561210

$4,821,348,811

Amentum Services, Inc.

Chantilly, VA

Chantilly, VA | 1,909 awards | Top agency Department of Defense | NAICS 561210

$7,198,073,558

Cgi Federal Inc.

Fairfax, VA

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

$1,451,565,887

Kbr Wyle Services, LLC

Fulton, MD

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

$2,888,572,364

Cherokee Nation

Tahlequah, OK

Tahlequah, OK | 454 awards | Top agency Department of Health and Human Services | NAICS 541330

$1,657,493,691

Caci Intelligence Solutions, LLC

Herndon, VA

Herndon, VA | 5 awards | Top agency Department of Defense | NAICS 541990

$57,742,442

Paragon Systems INC

Herndon, VA

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

$200,483,317

Amentum Technology, Inc.

Tullahoma, TN

Tullahoma, TN | 491 awards | Top agency National Aeronautics and Space Administration | NAICS 541712

$4,343,807,798

Chenega Global Services LLC

San Antonio, TX

San Antonio, TX | 5 awards | Top agency Department of Defense | NAICS 562910

$115,446,821

Centerra Group, LLC

Herndon, VA

Herndon, VA | 143 awards | Top agency Department of Energy | NAICS 561612

$390,897,507

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