Agency + NAICS page

Small Business Administration 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 Small Business Administration.

Agency: Small Business Administration
Last updated: April 8, 2026

Visible recipients

9

Mapped obligations

$778,134,174

Top PSC links

4

Top recipients

Visible recipients tied to Small Business Administration and NAICS 237990

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

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

Rlb Contracting, INC

Port Lavaca, TX

Rlb Contracting, INC is a federal category business profile based in Port Lavaca, TX. The current public data layer shows $182,294,181 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 237990 (Other Heavy and Civil Engineering Construction). The profile also shows meaningful product and service activity in PSC Z1KB.

$182,294,181

Abbott General Construction, Inc.

Hampton, VA

Abbott General Construction, Inc. is a federal 8a program participant profile based in Hampton, VA. The current public data layer shows $140,697,226 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 Y1AA.

$6,840,411

Ahtna Government Services CORP

West Sacramento, CA

Ahtna Government Services CORP is a federal alaskan native corporation owned firm profile based in West Sacramento, CA. The current public data layer shows $68,304,937 in visible federal obligations across 5 awards or transactions. Department of Energy 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 Y299.

$65,433,609

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

Harkins Builders, Inc.

Columbia, MD

Harkins Builders, Inc. is a federal category business profile based in Columbia, MD. The current public data layer shows $22,700,634 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.

$22,382,577

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

Gray Construction, Inc.

Lexington, KY

Gray Construction, Inc. is a federal category business profile based in Lexington, KY. The current public data layer shows $3,611,286 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 Y1EB.

$4,735,948