General Services Administration NAICS 611430 and PSC R499 contractors

Professional and Management Development Training. SUPPORT- PROFESSIONAL: OTHER. Cross-code overlap under General Services Administration.

General Services Administration · NAICS 611430 · PSC R499

Last updated: April 8, 2026

Visible recipients

Mapped obligations

$7,824,863,724

State overlap

Top recipients

Visible recipients in the General Services Administration overlap of NAICS 611430 and PSC R499

Hii Mission Technologies CORP

Willowbrook, IL

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

$5,462,600,761

Chenega Global Services LLC

San Antonio, TX

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

$65,992,070

Atlas Research LLC

Washington, DC

Washington, DC | 16 awards | Top agency Department of Veterans Affairs | NAICS 541611

$70,300,515

Janus Research Group, LLC

Evans, GA

Evans, GA | 103 awards | Top agency General Services Administration | NAICS 611430

$266,846,138

Calibre Systems INC

Alexandria, VA

Alexandria, VA | 125 awards | Top agency Department of Defense | NAICS 541990

$1,146,804,473

Edgewater Federal Solutions, Inc.

Frederick, MD

Frederick, MD | 41 awards | Top agency Department of Energy | NAICS 541519

$102,849,167

Prometheus Federal Services LLC

Chantilly, VA

Chantilly, VA | 95 awards | Top agency Department of Veterans Affairs | NAICS 561320

$20,656,332

Redhorse Corporation

Arlington, VA

Arlington, VA | 101 awards | Top agency Department of Defense | NAICS 611430

$601,984,583

Ellumen, Inc.

Silver Spring, MD

Silver Spring, MD | 52 awards | Top agency Department of Defense | NAICS 541512

$31,436,350

Trideum Corporation

Huntsville, AL

Huntsville, AL | 59 awards | Top agency Department of Defense | NAICS 541330

$28,319,532

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