NAICS 237in23:Construction

Heavy and Civil Engineering Construction

1,376 active contract opportunities

1,376

Active Opportunities

1,221

Posted Last 7 Days

30 days

Avg Response Window

Top Industries

Other Heavy and Civil Engineering Construction576
Highway, Street, and Bridge Construction443
Water and Sewer Line and Related Structures Construction224
Power and Communication Line and Related Structures Construction70
NAICS 237110 Water and Sewer Line and Related Structures Construction24

Set-Aside Distribution

Small Business545
541
Full & Open70
No Set Aside60
SDVOSB59

Top Locations

VA163
CA139
WA116
LA79
CO59

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 Buildings 238:Specialty Trade Contractors

State Water Interconnect Project

Small Business Administration (SBA)

Posted Apr 19, 2026

Due Apr 28, 2026

Small Business (SB), Small Disadvantaged Business (SDB), Women-Owned Small Business (WOSB), 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)

Medford WC - Capital Hill 12MG Reservoir

Small Business Administration (SBA)

Posted Apr 18, 2026

Due May 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)

Ramona Pipeline Improvements – Phase 1; Specification 668

Small Business Administration (SBA)

Posted Apr 17, 2026

Due May 13, 2026

Small Business (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)

Solicitation No. 6982AF25B000013, Project No. CA NP MOJA 11(2) 10(2) Kelbaker, Kelso-Cima, Cima and Morning Star Mine Roads

Small Business Administration (SBA)

Posted Apr 17, 2026

Due Apr 30, 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)

Dam Road Roundabout

Small Business Administration (SBA)

Posted Apr 17, 2026

Due May 7, 2026

Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Construction on State Highway in Mariposa County Near Bootjack at Various Locations form 0.3 Mile North of Harris Road to 0.2 Mile South of Stumpfield Mountain Road

Small Business Administration (SBA)

Posted Apr 17, 2026

Due Apr 30, 2026

Small Business (SB), Disadvantaged Veteran Business Enterprise (DVBE) – State of California

Brookside Elementary School Pedestrian Bridge

Small Business Administration (SBA)

Posted Apr 16, 2026

Due May 6, 2026

Disadvantaged Veteran Business Enterprise (DVBE) – State of California

Task 141 Carole Acres Sewer Rehab

Small Business Administration (SBA)

Posted Apr 16, 2026

Due Apr 21, 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)

Sewer Pipe and Manhole Lining Rehabilitation

Small Business Administration (SBA)

Posted Apr 16, 2026

Due Apr 29, 2026

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 Clearlake - Dam Road Roundabout, CA

Small Business Administration (SBA)

Posted Apr 15, 2026

Due May 7, 2026

Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

ONTARIO INTERNATIONAL AIRPORT AUTHORITY - TAXILANE G REPAIRS PROJECT, CA

Small Business Administration (SBA)

Posted Apr 15, 2026

Due Apr 27, 2026

Small Business (SB)

2026 Water Meter Installation Project

Small Business Administration (SBA)

Posted Apr 15, 2026

Due May 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), 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)

Sewer Collection System Pipeline Rehabilitation and Replacement Project Phase 10

Small Business Administration (SBA)

Posted Apr 15, 2026

Due May 14, 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)

Canyon Lake WTP in Lake Elsinore, CA

Small Business Administration (SBA)

Posted Apr 14, 2026

Due Jun 24, 2026

Small Business (SB), Women-Owned Small Business (WOSB), 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)

Sewer Collection System Pipeline Rehabilitation and Replacement Project Phase 10, CA

Small Business Administration (SBA)

Posted Apr 14, 2026

Due May 14, 2026

Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

San Diego Canal Radial Gates Rehabilitation, CA

Small Business Administration (SBA)

Posted Apr 13, 2026

Due Apr 30, 2026

Small Business (SB), Disadvantaged Veteran Business Enterprise (DVBE) – State of California

Tulare Dayton Improvements Project

Small Business Administration (SBA)

Posted Apr 13, 2026

Due May 7, 2026

Small Business (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)

Coachella Valley Water District: Valley View Water Consolidation Project (Spec No. 2025-14)

Small Business Administration (SBA)

Posted Apr 13, 2026

Due Jun 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), 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

Small Business Administration (SBA)

Posted Apr 13, 2026

Due Apr 23, 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)

SEWER COLLECTION SYSTEM PIPELINE REHABILITATION AND REPLACEMENT PROJECT PHASE 10

Small Business Administration (SBA)

Posted Apr 10, 2026

Due May 14, 2026

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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