Department of Defense NAICS 541330 and PSC R499 contractors

Engineering Services. SUPPORT- PROFESSIONAL: OTHER. Cross-code overlap under Department of Defense.

Department of Defense · NAICS 541330 · PSC R499

Last updated: April 17, 2026

Visible recipients

156

Mapped obligations

$295,426,329,118

State overlap

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541330 and PSC R499

Nisgaa Ciops LLC

Juneau, AK

Juneau, AK | 45 awards | Top agency Department of Defense | NAICS 541519

$20,885,963

Systems Plus, Inc.

Rockville, MD

Rockville, MD | 56 awards | Top agency Department of Defense | NAICS 541330

$730,051,524

Honeywell Building Solutions Ses CORP

Minneapolis, MN

Minneapolis, MN | 6 awards | Top agency General Services Administration | NAICS 541330

$242,870,037

Jefferson Consulting Group LLC

Washington, DC

Washington, DC | 103 awards | Top agency Agency for International Development | NAICS 541611

$156,709,689

Parsons Government Services International Inc.

Pasadena, CA

Pasadena, CA | 46 awards | Top agency Department of Defense | NAICS 541990

$109,496,654

Trideum Corporation

Huntsville, AL

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

$76,471,705

Bowhead Mission Solutions, LLC

Springfield, VA

Springfield, VA | 47 awards | Top agency General Services Administration | NAICS 541330

$492,240,650

Goldbelt Nighthawk, LLC

Newport News, VA

Newport News, VA | 28 awards | Top agency Department of Defense | NAICS 541519

$42,401,403

Ironmountain Solutions, LLC

Huntsville, AL

Huntsville, AL | 72 awards | Top agency Department of Defense | NAICS 541330

$377,306,328

Kimley-horn And Associates INC

Raleigh, NC

Raleigh, NC | 24 awards | Top agency Department of Transportation | NAICS 541330

$48,133,092

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