Department of the Interior NAICS 541330 contractors

Engineering Services. Contractors in this NAICS lane under Department of the Interior.

Agency: Department of the Interior

Last updated: April 19, 2026

Visible recipients

114

Mapped obligations

$39,781,929,483

Visible recipients tied to Department of the Interior and NAICS 541330

Blue Glacier Management Group Inc.

Englewood, CO

Englewood, CO | 24 awards | Top agency Department of Commerce | NAICS 541519

$2,501

Kickapoo Tribe In Kansas

Horton, KS

Horton, KS | 82 awards | Top agency Department of Health and Human Services | NAICS 237110

$93,660

Wsp USA Buildings INC

New York, NY

New York, NY | 5 awards | Top agency Department of Defense | NAICS 541330

$8,242,871

Spry Methods, Inc.

Mc Lean, VA

Mc Lean, VA | 47 awards | Top agency Department of Defense | NAICS 541512

$18,642,642

Presidio Networked Solutions Group, LLC

Lewisville, TX

Lewisville, TX | 75 awards | Top agency Federal Communications Commission | NAICS 517919

$10,329

Aalis Management Consulting LLC

Woodbridge, VA

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

$500

Freese And Nichols, Inc.

Fort Worth, TX

Fort Worth, TX | 5 awards | Top agency Department of Transportation | NAICS 541330

$5,281,938

Msmm Huitt-zollars A Joint Venture LLC

New Orleans, LA

New Orleans, LA | 18 awards | Top agency Department of Defense | NAICS 541330

$19,339,715

Icf Incorporated

Fairfax, VA

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

$632,779,985

Pueblo Of Sandia

Bernalillo, NM

Bernalillo, NM | 35 awards | Top agency Department of the Treasury | NAICS 621999

$59,614

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