Agency + NAICS page

Small Business Administration NAICS 237110 contractors

Water and Sewer Line and Related Structures 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

4

Mapped obligations

$49,533,042

Top PSC links

4

Top recipients

Visible recipients tied to Small Business Administration and NAICS 237110

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.

$23,460,862

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.

$23,222,090

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.

$47,695

Doyon Technical Services, LLC

Federal Way, WA

Doyon Technical Services, LLC is a federal 8a program participant profile based in Federal Way, WA. The current public data layer shows $9,327,302 in visible federal obligations across 20 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 Y1AZ.

$2,802,395