NAICS 237in23:Construction

Heavy and Civil Engineering Construction

1,843 active contract opportunities

1,843

Active Opportunities

1,658

Posted Last 7 Days

30 days

Avg Response Window

Top Industries

  • Other Heavy and Civil Engineering Construction777
  • Highway, Street, and Bridge Construction595
  • Water and Sewer Line and Related Structures Construction309
  • Power and Communication Line and Related Structures Construction93
  • NAICS 237110 Water and Sewer Line and Related Structures Construction24

Set-Aside Distribution

  • Small Business766
  • 693
  • No Set Aside110
  • SDVOSB91
  • Full & Open60

Top Locations

  • VA229
  • CA157
  • WA139
  • LA97
  • CO89

About NAICS237

The North American Industry Classification System (NAICS) code 237 covers heavy and civil engineering construction. Federal agencies use NAICS codes to classify contracts by industry. Businesses should register their applicable NAICS codes in SAM.gov.

SAM.gov Registration →|Set-Aside Programs →

Related Industries

236:Construction of Buildings238:Specialty Trade Contractors

45th Ave SW Culvert Replacement and Habitat Restoration

Small Business Administration (SBA)
WA
NAICS 237990
Posted Jul 31, 2026
Due Aug 12, 2026
Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Fire Pond Supplemental Water Project

Small Business Administration (SBA)
NY
NAICS 237110
Posted Jul 31, 2026
Due Aug 15, 2026
Small Business (SB), Small Disadvantaged Business (SDB), Women-Owned Small Business (WOSB), SBA-certified HUBZone Small Business (HUBZone SB), Veteran-Owned Small Business (VOSB), SBA-certified Service-Disabled Veteran-Owned Small Business (SDVOSB), Alaskan Native Corporation (ANC) or Indian Tribe (IT), Native Hawaiian Organization (NHO), Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Disadvantaged Veteran Business Enterprise (DVBE) – State of California, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

NORSD Water Resource Recovery Facility (WRRF) Expansion

Small Business Administration (SBA)
CA
NAICS 237110
Posted Jul 31, 2026
Due Sep 17, 2026
Small Business (SB), Women-Owned Small Business (WOSB), Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Lampasas Ave & Rio Linda Blvd Safety Improvements Project

Small Business Administration (SBA)
CA
NAICS 237310
Posted Jul 31, 2026
Due Aug 5, 2026
Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

LACSD Surface Water PFAS Removal Project No. 251, CA

Small Business Administration (SBA)
CA
NAICS 237310
Posted Jul 31, 2026
Due Sep 3, 2026
Disadvantaged Business Enterprise (DBE) – Dept of Transportation

Citywide Storm Water Infrastructure CIPP IDIQ FY 26-28 in Corpus Chrisi, TX

Small Business Administration (SBA)
TX
NAICS 237110
Posted Jul 30, 2026
Due Aug 11, 2026
Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Minority Business Enterprise (MBE) – NMSDC certification (non-federal)

Main Post Access & Paving Improvement in San Francisco

Small Business Administration (SBA)
CA
NAICS 237310
Posted Jul 30, 2026
Due Aug 5, 2026
Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Secondary Treatment System Upgrades Project

Small Business Administration (SBA)
CA
NAICS 237110
Posted Jul 30, 2026
Due Sep 3, 2026
Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Henrici Water Pump Station & Transmission Improvements

Small Business Administration (SBA)
OR
NAICS 237110
Posted Jul 29, 2026
Due Aug 4, 2026
Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Sanitary Sewer Improvements, Various Locations in Rockville, MD

Small Business Administration (SBA)
MD
NAICS 237110
Posted Jul 29, 2026
Due Sep 4, 2026
Women-Owned Small Business (WOSB), Veteran-Owned Small Business (VOSB), SBA-certified Service-Disabled Veteran-Owned Small Business (SDVOSB), Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Buccaneer Lift Station Fixed Price Design-Build

Small Business Administration (SBA)
CA
NAICS 237110
Posted Jul 29, 2026
Due Sep 16, 2026
Small Business (SB), Small Disadvantaged Business (SDB), Women-Owned Small Business (WOSB), SBA-certified HUBZone Small Business (HUBZone SB), Veteran-Owned Small Business (VOSB), SBA-certified Service-Disabled Veteran-Owned Small Business (SDVOSB), Alaskan Native Corporation (ANC) or Indian Tribe (IT), Native Hawaiian Organization (NHO), Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Disadvantaged Veteran Business Enterprise (DVBE) – State of California, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Corydon Well Replacement C2305

Small Business Administration (SBA)
CA
NAICS 237110
Posted Jul 28, 2026
Due Sep 1, 2026
Small Business (SB), Small Disadvantaged Business (SDB), Women-Owned Small Business (WOSB), SBA-certified HUBZone Small Business (HUBZone SB), Veteran-Owned Small Business (VOSB), SBA-certified Service-Disabled Veteran-Owned Small Business (SDVOSB), Alaskan Native Corporation (ANC) or Indian Tribe (IT), Native Hawaiian Organization (NHO), Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Disadvantaged Veteran Business Enterprise (DVBE) – State of California, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Recovery Lines for Stockdale North Wells SN-1 & SN-2, CA

Small Business Administration (SBA)
CA
NAICS 237110
Posted Jul 28, 2026
Due Aug 26, 2026
Small Business (SB), Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

MT FLAP SILVER 2021(1), Roosevelt Drive Safety and Realignment Project

TRANSPORTATION, DEPARTMENT OF
VANCOUVER, WA
NAICS 237310
Posted Jul 28, 2026
No Set Aside

Z-BRCA 310427 Southbound Shuttle Stop

INTERIOR, DEPARTMENT OF THE
Denver, CO
NAICS 237310
Posted Jul 27, 2026
Due Aug 10, 2026

Y-Glendo-Lusk Rural Tap and Quinn Creek Substation

ENERGY, DEPARTMENT OF
LOVELAND, CO
NAICS 237130
Posted Jul 27, 2026
Due Aug 14, 2026

Tainter Gates Sandblasting

INTERNATIONAL BOUNDARY AND WATER COMMISSION: US-MEXICO
El Paso, TX
NAICS 237990
Posted Jul 27, 2026
Due Aug 3, 2026
Small Business

SEWER CONSTRUCTION

Small Business Administration (SBA)
MD
NAICS 237110
Posted Jul 27, 2026
Due Aug 18, 2026
Small Business (SB), Small Disadvantaged Business (SDB), Women-Owned Small Business (WOSB), SBA-certified HUBZone Small Business (HUBZone SB), Veteran-Owned Small Business (VOSB), Alaskan Native Corporation (ANC) or Indian Tribe (IT), Native Hawaiian Organization (NHO), Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Disadvantaged Veteran Business Enterprise (DVBE) – State of California, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Yellowstone National Cemetery National Shrine Project

VETERANS AFFAIRS, DEPARTMENT OF
QUANTICO, VA
NAICS 237990
Posted Jul 27, 2026
Due Aug 27, 2026
SDVOSB

MT FLAP BLACKF 12(1) & MT NP GLAC 12(2), FLAP & FLTP Rehabilitation of Two Medicine Road

TRANSPORTATION, DEPARTMENT OF
VANCOUVER, WA
NAICS 237310
Posted Jul 27, 2026
Due Jul 31, 2026
No Set Aside
Back to contract directory
Gov Contract Finder Logo
© Copyright 2026 Gov Contract Finder.