NAICS 2371in237:Heavy and Civil Engineering Construction

Utility System Construction

562 active contract opportunities

562

Active Opportunities

450

Posted Last 7 Days

30 days

Avg Response Window

Top Industries

  • Water and Sewer Line and Related Structures Construction391
  • Power and Communication Line and Related Structures Construction116
  • Oil and Gas Pipeline and Related Structures Construction31
  • NAICS 237110 Water and Sewer Line and Related Structures Construction24

Set-Aside Distribution

  • 233
  • Small Business103
  • Small Business Set Aside - Total60
  • Full & Open52
  • SDVOSB32

Top Locations

  • CA85
  • VA58
  • CO37
  • OK27
  • WA27

About NAICS2371

The North American Industry Classification System (NAICS) code 2371 covers utility system 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

2361:Residential Building Construct...2362:Nonresidential Building Constr...2372:Land Subdivision2373:Highway, Street, and Bridge Co...2379:Other Heavy and Civil Engineer...2381:Foundation, Structure, and Bui...

20127 SX0 Jennifer

Small Business Administration (SBA)
MD
NAICS 237110
Posted Oct 1, 2026
Due Nov 5, 2026
Small Business (SB), SBA certified Veteran Owned Small Business (VOSB), SBA certified Service-Disabled Veteran Owned Small Business (SDVOSB), SBA certified Women-Owned Small Business (WOSB), SBA certified HUBZone Small Business (HUBZone SB), SAM.gov designated Small Disadvantaged Business (SDB), Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation

Alvarado Trunk Sewer PH IV and Water Main Relocations Bid Package A

Small Business Administration (SBA)
CA
NAICS 237110
Posted Oct 1, 2026
Due Oct 28, 2026
Small Business (SB), SBA certified Veteran Owned Small Business (VOSB), SBA certified Service-Disabled Veteran Owned Small Business (SDVOSB), SBA certified Women-Owned Small Business (WOSB), SBA certified HUBZone Small Business (HUBZone SB), SAM.gov designated Small Disadvantaged Business (SDB), Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation

Greenfield Wastewater Treatment Plant Upgrade Project

Small Business Administration (SBA)
CA
NAICS 237110
Posted Oct 1, 2026
Due Oct 28, 2026
Small Business (SB), SBA certified Women-Owned Small Business (WOSB), SBA certified HUBZone Small Business (HUBZone SB), SAM.gov designated Small Disadvantaged Business (SDB), Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation

Purified Water Replenishment - San Jacinto Valley Advanced Water Purification Facility

Small Business Administration (SBA)
CA
NAICS 237110
Posted Oct 1, 2026
Due Nov 17, 2026
Small Business (SB), SBA certified Veteran Owned Small Business (VOSB), SBA certified Service-Disabled Veteran Owned Small Business (SDVOSB), SBA certified Women-Owned Small Business (WOSB), SBA certified HUBZone Small Business (HUBZone SB), SAM.gov designated Small Disadvantaged Business (SDB), Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation

Alta, IA Municipal Utilities Water Treatment Plant

Small Business Administration (SBA)
IA
NAICS 237110
Posted Oct 1, 2026
Due Oct 7, 2026
Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation

TAMUS RELLIS Water Well

Small Business Administration (SBA)
TX
NAICS 237110
Posted Oct 1, 2026
Due Oct 8, 2026
SBA certified Veteran Owned Small Business (VOSB), SBA certified HUBZone Small Business (HUBZone SB)

Recharge Master Plan Update Basin Improvements Project - Montclair Basin Improvements

Small Business Administration (SBA)
CA
NAICS 237110
Posted Oct 1, 2026
Due Oct 29, 2026
Small Business (SB), Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation

IEUA RMPU Basin Improvements Project Montclair Basin Improvements

Small Business Administration (SBA)
CA
NAICS 237110
Posted Oct 1, 2026
Due Oct 29, 2026
Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation

Bucksport WWTP 42-inch Effluent Force Main in Conway, SC

Small Business Administration (SBA)
SC
NAICS 237110
Posted Oct 1, 2026
Due Oct 5, 2026
Small Business (SB), SAM.gov designated Small Disadvantaged Business (SDB), SBA certified Women-Owned Small Business (WOSB), SBA certified HUBZone Small Business (HUBZone SB), Certified Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

IEUA RP-5 Offsite Facilities Project No. EN19001.03 and Butterfield Lift Station Improvements Project No. EN26054

Small Business Administration (SBA)
CA
NAICS 237110
Posted Oct 1, 2026
Due Oct 29, 2026
Small Business (SB), SAM.gov designated Small Disadvantaged Business (SDB), SBA certified Women-Owned Small Business (WOSB), SBA certified HUBZone Small Business (HUBZone SB), SBA certified 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), Certified 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)

COLLEGE PLACE WWTP PHASE 1B

Small Business Administration (SBA)
WA
NAICS 237110
Posted Oct 1, 2026
Due Oct 20, 2026
Small Business (SB), SAM.gov designated Small Disadvantaged Business (SDB), SBA certified Women-Owned Small Business (WOSB), SBA certified HUBZone Small Business (HUBZone SB), SBA certified 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), Certified 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)

Construction of the Recharge Master Plan Update Basin Improvements Project Montclair Basin Improvements

Small Business Administration (SBA)
CA
NAICS 237110
Posted Oct 1, 2026
Due Oct 29, 2026
Small Business (SB), SAM.gov designated Small Disadvantaged Business (SDB), SBA certified Women-Owned Small Business (WOSB), SBA certified HUBZone Small Business (HUBZone SB), SBA certified 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), Certified 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)

Water Tank Storage (AM04)

DEPT OF DEFENSE
MOBILE, AL
NAICS 237110
Posted Sep 30, 2026
Small Business Set Aside - Total

Mather Fueling System Repairs

DEPT OF DEFENSE
OMAHA, NE
NAICS 237120
Posted Sep 30, 2026
Due Oct 14, 2026
Small Business Set Aside - Total

B-21 Utilities & Site Improvements, Communications and Electric Infrastructure, Dyess Air Force Base, Texas

DEPT OF DEFENSE
FORT WORTH, TX
NAICS 237130
Posted Sep 30, 2026
Due Oct 14, 2026
No Set Aside

Lava Lands Pump Replacement & Well Survey

AGRICULTURE, DEPARTMENT OF
Portland, OR
NAICS 237110
Posted Sep 30, 2026
Small Business Set Aside - Total

Y-BRCA 318695 - CONSTRUCTION

INTERIOR, DEPARTMENT OF THE
Denver, CO
NAICS 237110
Posted Sep 30, 2026
Due Oct 8, 2026
Small Business Set Aside - Total

CJAG Underground Utilities Construction

DEPT OF DEFENSE
COLUMBUS, OH
NAICS 237130
Posted Sep 30, 2026
Small Business Set Aside - Total

178th Wing Base Microgrid Construction

DEPT OF DEFENSE
SPRINGFIELD, OH
NAICS 237130
Posted Sep 30, 2026
Small Business Set Aside - Total

Y-NGWSP Cutter Lateral Reach 21 Booster Plant

INTERIOR, DEPARTMENT OF THE
SALT LAKE CITY, UT
NAICS 237110
Posted Sep 30, 2026
Due Oct 30, 2026
Small Business Set Aside - Total
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