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NAICS 238220 and PSC Y1AZ contractors in Maryland

Plumbing, Heating, and Air-Conditioning Contractors. CONSTRUCTION OF OTHER ADMINISTRATIVE FACILITIES AND SERVICE BUILDINGS. Use this deeper state cross-code page to see which visible contractors sit in the overlap between these two lanes inside Maryland.

Maryland · NAICS 238220 · PSC Y1AZ

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$404,559,299

Buyer overlap

Top recipients

Visible recipients in the Maryland overlap of NAICS 238220 and PSC Y1AZ

Whiting-turner Contracting Company, The

Towson, MD

Whiting-turner Contracting Company, The is a federal category business profile based in Towson, MD. The current public data layer shows $614,842,352 in visible federal obligations across 232 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.

$404,559,299