Department of the Interior NAICS 541611 and PSC C219 contractors

Administrative Management and General Management Consulting Services. ARCHITECT AND ENGINEERING- GENERAL: OTHER. Cross-code overlap under Department of the Interior.

Department of the Interior · NAICS 541611 · PSC C219

Last updated: April 9, 2026

Visible recipients

Mapped obligations

$1,074,213,050

State overlap

Top recipients

Visible recipients in the Department of the Interior overlap of NAICS 541611 and PSC C219

Mantech Srs Technologies, Inc.

Herndon, VA

Herndon, VA | 76 awards | Top agency Department of Defense | NAICS 541330

$519,002,098

Wsp USA Solutions INC

Arlington, VA

Arlington, VA | 228 awards | Top agency Department of Defense | NAICS 541330

$220,525,252

Michael Baker International, Inc.

Moon Township, PA

Moon Township, PA | 58 awards | Top agency Department of Defense | NAICS 541330

$274,910,064

Hntb Corporation

Kansas City, MO

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

$59,775,636

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