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General Services Administration NAICS 237990 and PSC Y1AA contractors

Other Heavy and Civil Engineering Construction. CONSTRUCTION OF OFFICE BUILDINGS. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under General Services Administration.

General Services Administration · NAICS 237990 · PSC Y1AA
Last updated: April 7, 2026

Visible recipients

4

Mapped obligations

$4,368,613,413

State overlap

4

Top recipients

Visible recipients in the General Services Administration overlap of NAICS 237990 and PSC Y1AA

Clark Construction Group LLC

Bethesda, MD

Clark Construction Group LLC is a federal category business profile based in Bethesda, MD. The current public data layer shows $399,234,980 in visible federal obligations across 109 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 236220 (Commercial and Institutional Building Construction). The profile also shows meaningful product and service activity in PSC Y1AA.

$1,519,776,992

Hensel Phelps Construction CO

Tysons Corner, VA

Hensel Phelps Construction CO is a federal category business profile based in Tysons Corner, VA. The current public data layer shows $177,437,285 in visible federal obligations across 60 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 236220 (Commercial and Institutional Building Construction). The profile also shows meaningful product and service activity in PSC Y1JZ.

$2,346,829,681

M. A. Mortenson Company

Minneapolis, MN

M. A. Mortenson Company is a federal category business profile based in Minneapolis, MN. The current public data layer shows $7,418,167 in visible federal obligations across 59 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 236220 (Commercial and Institutional Building Construction). The profile also shows meaningful product and service activity in PSC Y199.

$455,426,942

Christman Company, The

Lansing, MI

Christman Company, The is a federal category business profile based in Lansing, MI. The current public data layer shows $3,229,863 in visible federal obligations across 14 awards or transactions. General Services Administration appears as the strongest visible awarding agency. Top industry concentration is in NAICS 236220 (Commercial and Institutional Building Construction). The profile also shows meaningful product and service activity in PSC Z2AA.

$46,579,798