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Department of the Interior NAICS 541990 and PSC R799 contractors

All Other Professional, Scientific, and Technical Services. SUPPORT- MANAGEMENT: OTHER. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of the Interior.

Department of the Interior · NAICS 541990 · PSC R799
Last updated: April 8, 2026

Visible recipients

4

Mapped obligations

$845,922,089

State overlap

4

Top recipients

Visible recipients in the Department of the Interior overlap of NAICS 541990 and PSC R799

Bearingpoint, Inc.

Dallas, TX

Bearingpoint, Inc. is a federal category business profile based in Dallas, TX. The current public data layer shows $1,534,132,715 in visible federal obligations across 5 awards or transactions. Agency for International Development appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541990 (All Other Professional, Scientific, and Technical Services). The profile also shows meaningful product and service activity in PSC U009.

$719,378,503

The Lewin Group, Inc.

La Crosse, WI

The Lewin Group, Inc. is a federal category business profile based in La Crosse, WI. The current public data layer shows $46,392,453 in visible federal obligations across 82 awards or transactions. Department of Health and Human Services appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541720 (Research and Development in the Social Sciences and Humanities). The profile also shows meaningful product and service activity in PSC R499.

$64,785,347

Koniag Management Solutions LLC

Anchorage, AK

Koniag Management Solutions LLC is a federal 8a program participant profile based in Anchorage, AK. The current public data layer shows $40,896,713 in visible federal obligations across 184 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541512 (Computer Systems Design Services). The profile also shows meaningful product and service activity in PSC DA10.

$58,339,891

West 4th Strategy, LLC

Mc Lean, VA

West 4th Strategy, LLC is a federal category business profile based in Mc Lean, VA. The current public data layer shows $6,541,582 in visible federal obligations across 90 awards or transactions. Department of Justice appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541611 (Administrative Management and General Management Consulting Services). The profile also shows meaningful product and service activity in PSC R499.

$3,418,348