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Department of the Interior NAICS 541990 and PSC C219 contractors

All Other Professional, Scientific, and Technical Services. ARCHITECT AND ENGINEERING- GENERAL: 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 C219
Last updated: April 8, 2026

Visible recipients

4

Mapped obligations

$478,998,872

State overlap

4

Top recipients

Visible recipients in the Department of the Interior overlap of NAICS 541990 and PSC C219

Mantech Srs Technologies, Inc.

Herndon, VA

Mantech Srs Technologies, Inc. is a federal category business profile based in Herndon, VA. The current public data layer shows $74,933,149 in visible federal obligations across 77 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC R425.

$303,486,664

Power Engineers INC

Hailey, ID

Power Engineers INC is a federal category business profile based in Hailey, ID. The current public data layer shows $19,792,678 in visible federal obligations across 19 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC C219.

$80,589,765

Etrac, A Woolpert Company

San Rafael, CA

Etrac, A Woolpert Company is a federal category business profile based in San Rafael, CA. The current public data layer shows $10,944,093 in visible federal obligations across 17 awards or transactions. Department of Commerce appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541370 (Surveying and Mapping (except Geophysical) Services). The profile also shows meaningful product and service activity in PSC C219.

$69,472,271

Page Southerland Page, Inc.

Albany, NY

Page Southerland Page, Inc. is a federal category business profile based in Albany, NY. The current public data layer shows $2,006 in visible federal obligations across 5 awards or transactions. Department of State appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541310 (Architectural Services). The profile also shows meaningful product and service activity in PSC C211.

$25,450,172