General Services Administration NAICS 541990 contractors

All Other Professional, Scientific, and Technical Services. Contractors in this NAICS lane under General Services Administration.

Agency: General Services Administration

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$9,630,756,814

Visible recipients tied to General Services Administration and NAICS 541990

Deloitte Consulting LLP

Arlington, VA

Arlington, VA | 1,829 awards | Top agency Department of Defense | NAICS 541512

$1,127,451,787

Caci Premier Technology, LLC

Chantilly, VA

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

$10,159,764

Alion Science And Technology Corporation

Chicago, IL

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

$83,417,602

Amentum Government Services, Inc.

Chantilly, VA

Chantilly, VA | 5 awards | Top agency Department of Defense | NAICS 811118

$237,693,939

Caci Intelligence Solutions, LLC

Herndon, VA

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

$276,730,312

Ecs Federal, LLC

Fairfax, VA

Fairfax, VA | 401 awards | Top agency Department of Defense | NAICS 541512

$268,767,158

Modern Technology Solutions, Inc.

Alexandria, VA

Alexandria, VA | 285 awards | Top agency General Services Administration | NAICS 541712

$47,241,939

Walsh Federal LLC

Chicago, IL

Chicago, IL | 169 awards | Top agency Department of Defense | NAICS 236220

$622,102

Hii Mission Technologies CORP

Willowbrook, IL

Willowbrook, IL | 464 awards | Top agency Department of Defense | NAICS 541330

$1,449,614,863

Cae USA Mission Solutions Inc.

Tampa, FL

Tampa, FL | 5 awards | Top agency Department of Defense | NAICS 336413

$16,276,568

Page 1 of 91 2...9 Next

Agency profile

Loading buyer-level contractor and category paths