NAICS 23

Construction

7,885 active contract opportunities

7,885

Active Opportunities

6,989

Posted Last 7 Days

30 days

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Top Industries

  • Commercial and Institutional Building Construction2332
  • Plumbing, Heating, and Air-Conditioning Contractors1060
  • Other Heavy and Civil Engineering Construction874
  • Highway, Street, and Bridge Construction674
  • Electrical Contractors and Other Wiring Installation Contractors479

Set-Aside Distribution

  • 3014
  • Small Business1840
  • SDVOSB1074
  • Small Business Set Aside - Total839
  • No Set Aside420

Top Locations

  • VA1080
  • CA459
  • WA420
  • OH404
  • DC377

About NAICS23

The North American Industry Classification System (NAICS) code 23 covers 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

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)

1011 Turk Street Switchboard, UPS2, and HVAC Replacement

Small Business Administration (SBA)
CA
NAICS 238220
Posted Oct 1, 2026
Due Oct 14, 2026
Small Business (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)

Harbor Riviera Balcony Upgrades

Small Business Administration (SBA)
CA
NAICS 236116
Posted Oct 1, 2026
Due Oct 19, 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)

Fort McCoy Multipurpose Athletic Field Design-Build-to-Budget Industry Day / Pre-Solicitation Conference & Site Visit

DEPT OF DEFENSE
LOUISVILLE, KY
NAICS 236220
Posted Sep 30, 2026
Due Oct 14, 2026

Shipyard Infrastructure Optimization Program Multi-Mission Dry Dock, Multiple Award Construction Contract

DEPT OF DEFENSE
SILVERDALE, WA
NAICS 237990
Posted Sep 30, 2026
Due Dec 1, 2026

2026 SABER IDIQ - (Simplified Acquisition of Base Engineering Requirements)

DEPT OF DEFENSE
NIAGARA FALLS, NY
NAICS 236220
Posted Sep 30, 2026
SDVOSB

Replace CAC Carpeting B503, RVKQ 26-0007

DEPT OF DEFENSE
NIAGARA FALLS, NY
NAICS 236220
Posted Sep 30, 2026
WOSB

T-7A Depot Maintenance Complex (DMC) Maintenance Hangar, Hill AFB, UT (DB)

DEPT OF DEFENSE
SACRAMENTO, CA
NAICS 236210
Posted Sep 30, 2026

Repair MAU Access Platforms B907, RVKQ 25-0012

DEPT OF DEFENSE
NIAGARA FALLS, NY
NAICS 236220
Posted Sep 30, 2026
Small Business Set Aside - Total
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