Agency + NAICS page

Small Business Administration NAICS 237310 contractors

Highway, Street, and Bridge 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 7, 2026

Visible recipients

5

Mapped obligations

$64,910,354

Top PSC links

4

Top recipients

Visible recipients tied to Small Business Administration and NAICS 237310

Harper Construction Company, Inc.

San Diego, CA

Harper Construction Company, Inc. is a federal category business profile based in San Diego, CA. The current public data layer shows $277,967,049 in visible federal obligations across 51 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 Y1BZ.

$47,953,004

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.

$11,527,476

J & J Contractors, Inc.

North Billerica, MA

J & J Contractors, Inc. is a federal category business profile based in North Billerica, MA. The current public data layer shows $32,019,876 in visible federal obligations across 16 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.

$5,222,874

Modjeski And Masters INC

Mechanicsburg, PA

Modjeski And Masters INC is a federal category business profile based in Mechanicsburg, PA. The current public data layer shows $3,936,462 in visible federal obligations across 5 awards or transactions. Small Business Administration appears as the strongest visible awarding agency. Top industry concentration is in NAICS 611430 (Professional and Management Development Training). The profile also shows meaningful product and service activity in PSC U008.

$82,000

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.

$125,000