Department of the Interior NAICS 541611 contractors

Administrative Management and General Management Consulting Services. Contractors in this NAICS lane under Department of the Interior.

Agency: Department of the Interior

Last updated: April 19, 2026

Visible recipients

Mapped obligations

$13,736,184,520

Visible recipients tied to Department of the Interior and NAICS 541611

Sierra7, Inc.

Mclean, VA

Mclean, VA | 141 awards | Top agency Department of Veterans Affairs | NAICS 541512

$22,565,759

Goldbelt Glacier Health Services, LLC

Herndon, VA

Herndon, VA | 67 awards | Top agency Department of Defense | NAICS 541611

$85,608,391

Black & Veatch Corporation

Alpharetta, GA

Alpharetta, GA | 5 awards | Top agency Environmental Protection Agency | NAICS 541611

$286,853

Sumaria Systems, LLC

Beavercreek, OH

Beavercreek, OH | 104 awards | Top agency Department of Defense | NAICS 541712

$38,921,127

Lower Brule Sioux Tribe

Lower Brule, SD

Lower Brule, SD | 111 awards | Top agency Department of the Interior | NAICS 541611

$990,000

Mantech Gray Hawk Systems, Inc.

Falls Church, VA

Falls Church, VA | 5 awards | Top agency Department of Defense | NAICS 541330

$13,013,453

Goldbelt Apex, LLC

Alexandria, VA

Alexandria, VA | 54 awards | Top agency Department of Defense | NAICS 611430

$14,561,593

Goldbelt Frontier, LLC

Alexandria, VA

Alexandria, VA | 105 awards | Top agency Department of Defense | NAICS 811219

$26,728,055

Inalab Consulting, Inc.

Fairfax, VA

Fairfax, VA | 136 awards | Top agency Department of Defense | NAICS 541330

$17,887,183

Koniag Emerging Technologies LLC

Anchorage, AK

Anchorage, AK | 22 awards | Top agency Department of State | NAICS 541512

$2,862,862

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