NAICS 23

Construction

4,633 active contract opportunities

4,633

Active Opportunities

4,209

Posted Last 7 Days

30 days

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Top Industries

  • Commercial and Institutional Building Construction1421
  • Plumbing, Heating, and Air-Conditioning Contractors606
  • Other Heavy and Civil Engineering Construction556
  • Highway, Street, and Bridge Construction435
  • Electrical Contractors and Other Wiring Installation Contractors272

Set-Aside Distribution

  • 1747
  • Small Business1553
  • SDVOSB641
  • No Set Aside176
  • 8(a) Sole Source118

Top Locations

  • VA582
  • CA301
  • WA252
  • TX196
  • OH191

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

WSSC MD IDIQ Task 135 Regency Estates Sewer Rehab

Small Business Administration (SBA)
MD
NAICS 237110
Posted Apr 29, 2026
Due May 5, 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)

Buildings 2415, 2416, and 2417 Metal Siding and Repair

Small Business Administration (SBA)
KY
NAICS 238390
Posted Apr 29, 2026
Due May 20, 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)

Road Construction for Solicitation #6982AF25B000013 Kelbaker, Kelso-Cima, Cima and Morning Star Mine Roads CA NP MOJA 11(2) 10(2)

Small Business Administration (SBA)
CA
NAICS 237310
Posted Apr 29, 2026
Due May 14, 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)

C0727 – Penitencia Delivery and Force Main Inspection & Rehabilitation Project

Small Business Administration (SBA)
CA
NAICS 238990
Posted Apr 29, 2026
Due May 6, 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)

Oro Loma SD – Sewer Collection System Pipeline – Phase 10

Small Business Administration (SBA)
CA
NAICS 238990
Posted Apr 29, 2026
Due May 14, 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)

Palmdale Water District: Pure Water Antelope Valley Advanced Water Purification Facility

Small Business Administration (SBA)
CA
NAICS 237110
Posted Apr 29, 2026
Due Jun 19, 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)

Canyon Lake Water Treatment Plant Improvements

Small Business Administration (SBA)
CA
NAICS 237110
Posted Apr 29, 2026
Due Jun 24, 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)

W2E WATER TREATMENT PLANT

Small Business Administration (SBA)
IL
NAICS 237110
Posted Apr 29, 2026
Due May 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)

Atherton WWTP Blower Replacement Project

Small Business Administration (SBA)
MO
NAICS 237110
Posted Apr 29, 2026
Due May 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)

Caltrans 11-2N2354, CA

Small Business Administration (SBA)
CA
NAICS 238910
Posted Apr 29, 2026
Due May 6, 2026
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Pacific Gas and Electric Co. General Construction, Corporate Real Estate Strategy & Services

Small Business Administration (SBA)
CA
NAICS 236220
Posted Apr 29, 2026
Due Jun 5, 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)

Luther Burbank HS Security Fencing

Small Business Administration (SBA)
CA
NAICS 238990
Posted Apr 29, 2026
Due May 12, 2026
Disadvantaged Veteran Business Enterprise (DVBE) – State of California

Penitencia Delivery and Force Main Inspection

Small Business Administration (SBA)
CA
NAICS 237110
Posted Apr 28, 2026
Due May 6, 2026
Small Business (SB)

Building C Cafeteria Grease Trap Replacement Project NH2026-0004

Small Business Administration (SBA)
NH
NAICS 238220
Posted Apr 28, 2026
Due May 4, 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)

Caltrans 11-2N2354, CA

Small Business Administration (SBA)
CA
NAICS 238910
Posted Apr 28, 2026
Due May 6, 2026
Small Business (SB)

Replacing Defective HVAC Coil

Small Business Administration (SBA)
MI
NAICS 238220
Posted Apr 27, 2026
Due May 4, 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)

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Small Business Administration (SBA)
CA
NAICS 237310
Posted Apr 27, 2026
Due May 14, 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)

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Small Business Administration (SBA)
CA
NAICS 237110
Posted Apr 27, 2026
Due Jun 24, 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)

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Small Business Administration (SBA)
NV
NAICS 238160
Posted Apr 27, 2026
Due May 12, 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)

Boiler and Mini-Split

Small Business Administration (SBA)
MA
NAICS 238220
Posted Apr 27, 2026
Due May 21, 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), Disadvantaged Veteran Business Enterprise (DVBE) – State of California
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