Agency + NAICS page

Department of the Interior NAICS 237990 contractors

Other Heavy and Civil Engineering Construction. Use this buyer-scoped industry page to see which visible contractors sit closest to this NAICS lane under Department of the Interior.

Agency: Department of the Interior
Last updated: April 8, 2026

Visible recipients

29

Mapped obligations

$9,809,389,358

Top PSC links

4

Top recipients

Visible recipients tied to Department of the Interior and NAICS 237990

Marcon Engineering, INC

Escondido, CA

Marcon Engineering, INC is a federal category business profile based in Escondido, CA. The current public data layer shows $64,752,480 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 Z299.

$12,538,516

Kiewit Infrastructure South CO

Westlake, TX

Kiewit Infrastructure South CO is a federal category business profile based in Westlake, TX. The current public data layer shows $56,226,337 in visible federal obligations across 25 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 237310 (Highway, Street, and Bridge Construction). The profile also shows meaningful product and service activity in PSC Z2LB.

$350,257,190

Cdm Constructors Inc.

Boston, MA

Cdm Constructors Inc. is a federal category business profile based in Boston, MA. The current public data layer shows $43,166,535 in visible federal obligations across 31 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 237110 (Water and Sewer Line and Related Structures Construction). The profile also shows meaningful product and service activity in PSC Y1NE.

$102,839,751

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

Stg Pacific, LLC

Anchorage, AK

Stg Pacific, LLC is a federal 8a program participant profile based in Anchorage, AK. The current public data layer shows $30,953,703 in visible federal obligations across 21 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.

$4,756,995

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

Ahtna Global LLC

Anchorage, AK

Ahtna Global LLC is a federal 8a program participant profile based in Anchorage, AK. The current public data layer shows $24,004,773 in visible federal obligations across 94 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 562910 (Remediation Services). The profile also shows meaningful product and service activity in PSC F108.

$6,745,602

Kiewit Infrastructure Co.

Woodcliff Lake, NJ

Kiewit Infrastructure Co. is a federal category business profile based in Woodcliff Lake, NJ. The current public data layer shows $13,178,417 in visible federal obligations across 22 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 237310 (Highway, Street, and Bridge Construction). The profile also shows meaningful product and service activity in PSC Y1LB.

$386,280,503

Hdr, INC

Omaha, NE

Hdr, INC is a federal category business profile based in Omaha, NE. The current public data layer shows $11,276,362 in visible federal obligations across 5 awards or transactions. Department of Veterans Affairs 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 C114.

$0

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.

$63,160
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