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Department of the Interior NAICS 541310 and PSC R499 contractors

Architectural Services. SUPPORT- PROFESSIONAL: 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 541310 · PSC R499
Last updated: April 7, 2026

Visible recipients

4

Mapped obligations

$268,287,348

State overlap

4

Top recipients

Visible recipients in the Department of the Interior overlap of NAICS 541310 and PSC R499

Wsp USA Solutions INC

Arlington, VA

Wsp USA Solutions INC is a federal category business profile based in Arlington, VA. The current public data layer shows $36,524,205 in visible federal obligations across 228 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.

$110,893,944

Michael Baker International, Inc.

Moon Township, PA

Michael Baker International, Inc. is a federal category business profile based in Moon Township, PA. The current public data layer shows $24,496,294 in visible federal obligations across 58 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 C211.

$123,859,990

Kimley-horn And Associates INC

Raleigh, NC

Kimley-horn And Associates INC is a federal category business profile based in Raleigh, NC. The current public data layer shows $15,182,762 in visible federal obligations across 24 awards or transactions. Department of Transportation 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 R408.

$3,986,929

Hntb Corporation

Kansas City, MO

Hntb Corporation is a federal category business profile based in Kansas City, MO. The current public data layer shows $9,125,265 in visible federal obligations across 24 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 C211.

$29,546,485