State + agency + NAICS page

Department of Homeland Security NAICS 237990 contractors in Washington

Other Heavy and Civil Engineering Construction. Use this deeper state-buyer-industry page to see which visible contractors sit closest to this exact overlap in the public AwardRegistry layer.

Washington + Department of Homeland Security
Last updated: April 8, 2026

Visible recipients

5

Mapped obligations

$3,959,759,123

Top PSC links

4

Top recipients

Visible recipients tied to Department of Homeland Security, Washington, and NAICS 237990

Manson Construction CO

Seattle, WA

Manson Construction CO is a federal category business profile based in Seattle, WA. The current public data layer shows $223,706,344 in visible federal obligations across 86 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 237990 (Other Heavy and Civil Engineering Construction). The profile also shows meaningful product and service activity in PSC Y1KF.

$3,907,681,425

Sealaska Constructors LLC

Seattle, WA

Sealaska Constructors LLC is a federal alaskan native corporation owned firm profile based in Seattle, WA. The current public data layer shows $38,497,365 in visible federal obligations across 47 awards or transactions. Department of the Interior 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 Y1CA.

$24,422,196

Doyon Management Services, LLC

Federal Way, WA

Doyon Management Services, LLC is a federal 8a program participant profile based in Federal Way, WA. The current public data layer shows $30,020,172 in visible federal obligations across 68 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 Z2JZ.

$5,992,056

Pacific Tech Construction INC

Kelso, WA

Pacific Tech Construction INC is a federal category business profile based in Kelso, WA. The current public data layer shows $7,425,224 in visible federal obligations across 130 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 238160 (Roofing Contractors). The profile also shows meaningful product and service activity in PSC Y1JZ.

$2,095,439

Doyon Project Services, LLC

Federal Way, WA

Doyon Project Services, LLC is a federal alaskan native corporation owned firm profile based in Federal Way, WA. The current public data layer shows $152,245 in visible federal obligations across 5 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.

$19,568,007