Agency + NAICS page

Department of Defense 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 Defense.

Agency: Department of Defense
Last updated: April 8, 2026

Visible recipients

64

Mapped obligations

$13,616,742,345

Top PSC links

4

Top recipients

Visible recipients tied to Department of Defense and NAICS 237990

Fisher Sand & Gravel CO

Tempe, AZ

Fisher Sand & Gravel CO is a federal category business profile based in Tempe, AZ. The current public data layer shows $8,575,321,644 in visible federal obligations across 30 awards or transactions. Department of Homeland Security 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 Y1PZ.

$6,392,200

Sundt Construction, Inc.

Tempe, AZ

Sundt Construction, Inc. is a federal category business profile based in Tempe, AZ. The current public data layer shows $1,303,284,586 in visible federal obligations across 7 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.

$32,675,904

Granite Construction Company

Watsonville, CA

Granite Construction Company is a federal category business profile based in Watsonville, CA. The current public data layer shows $684,943,035 in visible federal obligations across 56 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.

$814,381,840

Kbr Services, LLC

Houston, TX

Kbr Services, LLC is a federal category business profile based in Houston, TX. The current public data layer shows $622,087,810 in visible federal obligations across 388 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561210 (Facilities Support Services). The profile also shows meaningful product and service activity in PSC R706.

$374,513,062

Watts Constructors LLC

Mc Lean, VA

Watts Constructors LLC is a federal category business profile based in Mc Lean, VA. The current public data layer shows $621,520,916 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 Y1EZ.

$98,208,457

Del-jen, Inc.

Clarksville, TN

Del-jen, Inc. is a federal category business profile based in Clarksville, TN. The current public data layer shows $532,305,116 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 561210 (Facilities Support Services). The profile also shows meaningful product and service activity in PSC S216.

$24,449,179

Nan INC

Honolulu, HI

Nan INC is a federal asian pacific american owned business profile based in Honolulu, HI. The current public data layer shows $522,369,104 in visible federal obligations across 100 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 Y1FC.

$385,700,475

Tetra Tech Ec, Inc.

San Diego, CA

Tetra Tech Ec, Inc. is a federal category business profile based in San Diego, CA. The current public data layer shows $418,648,162 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 562910 (Remediation Services). The profile also shows meaningful product and service activity in PSC F108.

$127,207,031

Kiewit Infrastructure West Co.

Vancouver, WA

Kiewit Infrastructure West Co. is a federal category business profile based in Vancouver, WA. The current public data layer shows $413,911,481 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 237990 (Other Heavy and Civil Engineering Construction). The profile also shows meaningful product and service activity in PSC Y1BD.

$1,011,043,616

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.

$21,122,150
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