Department of the Interior NAICS 541611 and PSC R499 contractors

Administrative Management and General Management Consulting Services. SUPPORT- PROFESSIONAL: OTHER. Cross-code overlap under Department of the Interior.

Department of the Interior · NAICS 541611 · PSC R499

Last updated: April 17, 2026

Visible recipients

Mapped obligations

$25,853,022,355

State overlap

Top recipients

Visible recipients in the Department of the Interior overlap of NAICS 541611 and PSC R499

Iem International, Inc.

Raleigh, NC

Raleigh, NC | 39 awards | Top agency Department of Homeland Security | NAICS 541611

$383,606,209

Goldbelt Nighthawk, LLC

Newport News, VA

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

$33,208,520

Kimley-horn And Associates INC

Raleigh, NC

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

$18,828,059

Hntb Corporation

Kansas City, MO

Kansas City, MO | 24 awards | Top agency Department of Defense | NAICS 541330

$16,741,918

Netimpact Strategies INC

Herndon, VA

Herndon, VA | 45 awards | Top agency Department of Defense | NAICS 541519

$169,404,288

Interactive Government Holdings, Inc.

Springfield, VA

Springfield, VA | 32 awards | Top agency Department of Defense | NAICS 561110

$59,167,084

West 4th Strategy, LLC

Mc Lean, VA

Mc Lean, VA | 90 awards | Top agency Department of Justice | NAICS 541611

$31,909,093

Aalis Management Consulting LLC

Woodbridge, VA

Woodbridge, VA | 29 awards | Top agency Department of the Interior | NAICS 541611

$22,632,775

Icf Incorporated

Fairfax, VA

Fairfax, VA | 5 awards | Top agency Department of Health and Human Services | NAICS 541611

$4,343,277,583

Koniag Advisory And Business Solutions, LLC

Anchorage, AK

Anchorage, AK | 31 awards | Top agency Department of State | NAICS 541611

$7,027,368

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