NAICS 237in23:Construction

Heavy and Civil Engineering Construction

2,133 active contract opportunities

2,133

Active Opportunities

1,836

Posted Last 7 Days

30 days

Avg Response Window

Top Industries

  • Other Heavy and Civil Engineering Construction875
  • Highway, Street, and Bridge Construction674
  • Water and Sewer Line and Related Structures Construction390
  • Power and Communication Line and Related Structures Construction116
  • Oil and Gas Pipeline and Related Structures Construction31

Set-Aside Distribution

  • 860
  • Small Business610
  • Small Business Set Aside - Total215
  • No Set Aside137
  • SDVOSB104

Top Locations

  • VA273
  • CA176
  • WA156
  • CO117
  • LA105

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.

Teresa Thurston Replacement OSS

HEALTH AND HUMAN SERVICES, DEPARTMENT OF
SEATTLE, WA
NAICS 237110
Posted Sep 23, 2026
Small Business Set Aside - Total

Regional Water Recycling Plant No. 5 (RP-5) Offsite Facilities and Butterfield Lift Station Improvements Project

Small Business Administration (SBA)
CA
NAICS 237110
Posted Sep 23, 2026
Due Oct 15, 2026
SBA-certified HUBZone Small Business (HUBZone SB), Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Northside High School Area – Sanitary Sewer Rehabilitation in Houston, TX

Small Business Administration (SBA)
TX
NAICS 237110
Posted Sep 23, 2026
Due Oct 6, 2026
Small Disadvantaged Business (SDB), Women-Owned Small Business (WOSB), Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

City of Lomita: Zone G Water Main Replacement Project

Small Business Administration (SBA)
CA
NAICS 237110
Posted Sep 23, 2026
Due Oct 19, 2026
Small Business (SB), SBA-certified HUBZone Small Business (HUBZone 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 Lomita

Small Business Administration (SBA)
CA
NAICS 237990
Posted Sep 23, 2026
Due Oct 20, 2026
Small Business (SB), Small Disadvantaged Business (SDB), 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)

RICHMOND INNER HARBOR FY26 MAINTENANCE DREDGING PROJECT

DEPT OF DEFENSE
SAN FRANCISCO, CA
NAICS 237990
Posted Sep 22, 2026

Y-EO14398 REHAB WATERLINE FOR FIRE FLOW - GLBA

INTERIOR, DEPARTMENT OF THE
ANCHORAGE, AK
NAICS 237110
Posted Sep 22, 2026

Y-YELL 318713 Rehabilitate/Replace Old Faithful Wastewater Treatment Plant

INTERIOR, DEPARTMENT OF THE
Denver, CO
NAICS 237110
Posted Sep 22, 2026
Due Oct 2, 2026

WSMR BRIDGE REPAIR RR7B0003

DEPT OF DEFENSE
FORT BLISS, TX
NAICS 237310
Posted Sep 22, 2026
Small Business Set Aside - Total

23001 SX0

Small Business Administration (SBA)
MD
NAICS 237110
Posted Sep 22, 2026
Due Oct 29, 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)

Design-Bid-Build, USCG Offshore Patrol Cutters (OPC) Homeport Pier, Naval Station Newport, Newport RI

DEPT OF DEFENSE
NORFOLK, VA
NAICS 237990
Posted Sep 22, 2026

Joint Base Langley Eustis Tank Repairs

DEPT OF DEFENSE
OMAHA, NE
NAICS 237120
Posted Sep 22, 2026
Due Oct 20, 2026
Small Business Set Aside - Total

Z-GAOA SOUTH PRYOR ROADS

INTERIOR, DEPARTMENT OF THE
BILLINGS, MT
NAICS 237310
Posted Sep 22, 2026

HICS Boring and Erosion

DEPT OF DEFENSE
MALMSTROM AFB, MT
NAICS 237990
Posted Sep 22, 2026
Small Business Set Aside - Total

Z-CA-FWS MODOC NWR- MESURING WEIR REPLCMT

INTERIOR, DEPARTMENT OF THE
Falls Church, VA
NAICS 237310
Posted Sep 22, 2026

SP-POL-CMP-REPAIR-FY25-CTG GRISSOM ARB, IN

DEPT OF DEFENSE
OMAHA, NE
NAICS 237120
Posted Sep 22, 2026
Due Oct 2, 2026
Small Business Set Aside - Total

Power Construction and Services II (PCS II) MATOC

DEPT OF DEFENSE
PHILADELPHIA, PA
NAICS 237130
Posted Sep 22, 2026
Due Oct 13, 2026

RIDGES BASIN GATE HYDRAULICS MOD

INTERIOR, DEPARTMENT OF THE
SALT LAKE CITY, UT
NAICS 237990
Posted Sep 22, 2026
Due Oct 21, 2026

HALEIWA SMALL BOAT HARBOR MAINTENANCE DREDGING AND REVETTED MOLE REPAIR, HALEIWA, OAHU, HAWAII

DEPT OF DEFENSE
FORT SHAFTER, HI
NAICS 237990
Posted Sep 22, 2026
Due Oct 8, 2026

Z-OFAS Cobblestone Ramp Repair

INTERIOR, DEPARTMENT OF THE
HERNDON, VA
NAICS 237310
Posted Sep 22, 2026