NAICS 237in23:Construction

Heavy and Civil Engineering Construction

1,326 active contract opportunities

1,326

Active Opportunities

1,177

Posted Last 7 Days

30 days

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Top Industries

  • Other Heavy and Civil Engineering Construction553
  • Highway, Street, and Bridge Construction427
  • Water and Sewer Line and Related Structures Construction217
  • Power and Communication Line and Related Structures Construction67
  • NAICS 237110 Water and Sewer Line and Related Structures Construction24

Set-Aside Distribution

  • Small Business523
  • 520
  • Full & Open66
  • No Set Aside60
  • SDVOSB56

Top Locations

  • VA156
  • CA134
  • WA112
  • LA72
  • CO58

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

NSCS - Kanes Marina & Alder Street

Small Business Administration (SBA)
OR
NAICS 237110
Posted Jun 1, 2026
Due Jun 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)

Shepherd, TX Water System Improvements

Small Business Administration (SBA)
TX
NAICS 237110
Posted Jun 1, 2026
Due Jun 10, 2026
Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Wastewater Treatment Plant Equalization Basin

Small Business Administration (SBA)
CA
NAICS 237110
Posted Jun 1, 2026
Due Jul 2, 2026
Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Minority Business Enterprise (MBE) – NMSDC certification (non-federal)

Vinton Steel Well

Small Business Administration (SBA)
TX
NAICS 237110
Posted Jun 1, 2026
Due Jun 26, 2026
Small Business (SB), Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Bob Ruud Memorial Highway & Bell Vista Ave.

Small Business Administration (SBA)
NV
NAICS 237310
Posted May 31, 2026
Due Jun 10, 2026
Small Business (SB), Small Disadvantaged Business (SDB), Women-Owned Small Business (WOSB), SBA-certified HUBZone Small Business (HUBZone SB), SBA-certified Service-Disabled Veteran-Owned Small Business (SDVOSB)

Mountain Creek Regional Wastewater System Expansion from 7.0 MGD to 10.0 MGD

Small Business Administration (SBA)
CA
NAICS 237110
Posted May 28, 2026
Due Jun 11, 2026
Small Business (SB), Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

City of Banning - IFB 26-126 Wastewater Treatment Plant Equalization Basin, CA

Small Business Administration (SBA)
CA
NAICS 237310
Posted May 28, 2026
Due Jul 2, 2026
Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Jacob Riis Bulkhead

Small Business Administration (SBA)
NY
NAICS 237990
Posted May 28, 2026
Due Jun 15, 2026
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)

W. Oakland BART Sanitary Sewer & Offsite Improvements Projects

Small Business Administration (SBA)
CA
NAICS 237110
Posted May 28, 2026
Due Jun 5, 2026
Small Business (SB)

CIMH8245A26

Small Business Administration (SBA)
MD
NAICS 237110
Posted May 28, 2026
Due Jun 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)

SAN PEDRO WATERFRONT - HARBOR BOULEVARD ROADWAY AND 22ND STREET PARKING LOT IMPROVEMENTS

Small Business Administration (SBA)
CA
NAICS 237310
Posted May 28, 2026
Due Jun 11, 2026
Small Business (SB), Disadvantaged Veteran Business Enterprise (DVBE) – State of California, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Roadway Construction at BOB RUUD MEM HWY & BELL VISTA AVE, NV FLAP NYE 10(1)

Small Business Administration (SBA)
NV
NAICS 237310
Posted May 28, 2026
Due Jun 10, 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)

2026 Pioneer Trail Waterline Project (RE-BID)

Small Business Administration (SBA)
CA
NAICS 237110
Posted May 22, 2026
Due Jun 9, 2026
SBA-certified HUBZone Small Business (HUBZone SB), 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)

Lagoon Pump Station Seismic Rehabilitation and Capacity Enhancement Project (CIP 301-717)

Small Business Administration (SBA)
CA
NAICS 237110
Posted May 22, 2026
Due Jun 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), 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)

Greensboro (Guilford County) –Bunker Hill Road & Gray Wilson Road Water Line Improvements, Contract No. 2019-009B

Small Business Administration (SBA)
NC
NAICS 237110
Posted May 22, 2026
Due Jun 11, 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)

Port of Los Angeles - San Pedro Waterfront - Harbor Blvd Roadway & 22nd St Parking Lot Improvements project, CA

Small Business Administration (SBA)
CA
NAICS 237310
Posted May 20, 2026
Due Jun 11, 2026
Small Business (SB), Disadvantaged Veteran Business Enterprise (DVBE) – State of California, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

2026 PIONEER TRAIL WATERLINE PROJECT

Small Business Administration (SBA)
CA
NAICS 237110
Posted May 20, 2026
Due Jun 9, 2026
Small Business (SB), Small Disadvantaged Business (SDB), Women-Owned Small Business (WOSB), SBA-certified HUBZone Small Business (HUBZone SB), SBA-certified Service-Disabled Veteran-Owned Small Business (SDVOSB), 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)

2026 Pioneer Trail Waterline Project (REBID)

Small Business Administration (SBA)
CA
NAICS 237110
Posted May 20, 2026
Due Jun 9, 2026
Small Disadvantaged Business (SDB), Women-Owned Small Business (WOSB), Veteran-Owned Small Business (VOSB), SBA-certified Service-Disabled Veteran-Owned Small Business (SDVOSB), Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Road Construction for Solicitation #6982AF26B000003 Bob Ruud Mem Hwy & Bell Vista Ave – NV FLAP NYE 10(1)

Small Business Administration (SBA)
NV
NAICS 237310
Posted May 19, 2026
Due Jun 2, 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)

EPWU Pumping Systems, Furnish Installation and Maintenance

Small Business Administration (SBA)
TX
NAICS 237110
Posted May 18, 2026
Due Jun 2, 2026
Small Business (SB), Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)
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