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    1. Home
    2. /Gov Explore
    3. /NAICS Codes
    4. /237, Heavy and Civil Engineering Construction

    NAICS Demand Lane

    Heavy and Civil Engineering Construction, Contract Opportunities

    60,751 total opportunities (60,751 active) tied to NAICS 237 across federal, state, local, and forecast sources.
    NAICS 237Cross-source coveragePreviewing 10 opportunities
    View NAICS definition →
    Total Opportunities
    60.8K
    Across all indexed sources
    Active Estimate
    60.8K
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest opportunities

    Previewing the latest 10 opportunities for NAICS 237.

    DEPT OF DEFENSE

    SOURCES SOUGHT ANNOUNCEMENT / INDUSTRY DAY FOR SENTINEL UTILITY CORRIDOR AT MALMSTROM AIR FORCE BASE, MONTANA

    Active

    AI Summary

    This Sources Sought announcement invites industry participation for the Sentinel Utility Corridor project at Malmstrom Air Force Base, Montana. The estimated project magnitude is between $1.4B to $2.0B. An Industry Day will be held virtually on September 4, 2026, to discuss the project and gather feedback.

    NE

    Posted Sep 13, 2026Due Sep 24, 2026Special NoticeNAICS 237130Sol: W9128F26SM024
    View details→

    DEPARTMENT OF VETERANS AFFAIRS

    608-26-4-4808-0202: WATER TOWER INSPECTION & MAINTENANCE- SERVICE CONTRACT (VA-26-00079725)

    Active

    AI Summary

    The Department of Veterans Affairs is seeking a service contract for water tower inspection and maintenance. The RFQ is due on September 18, 2026, at 3 PM EST. This opportunity is set aside for SDVOSBC, emphasizing the importance of veteran-owned businesses.

    ME

    Posted Sep 12, 2026Due Sep 18, 2026SolicitationNAICS 237110Service-Disabled Veteran-Owned Small Business (SDVOSB) Set-Aside (FAR 19.14)Sol: 36C24126Q0704
    View details→

    DEPARTMENT OF HOMELAND SECURITY

    REPAIR OF PAVEMENT AT AIR STATION SAN FRANCISCO

    Active

    AI Summary

    The Department of Homeland Security is soliciting proposals for the repair of pavement at Air Station San Francisco. This opportunity is set aside for small businesses, and offers are due via email by the specified deadline. A site visit is scheduled for September 8, 2026, and interested participants must register by S…

    CA

    Posted Sep 12, 2026Due Sep 16, 2026SolicitationNAICS 237310Total Small Business Set-Aside (FAR 19.5)Sol: 20180PR260000076
    View details→

    DEPT OF DEFENSE

    MAHG251029 REPAIR WATER TOWER #8

    Active

    AI Summary

    This opportunity involves the repair of Water Tower #8 for the Department of Defense, specifically the Air Force. It is a service disabled veteran owned small business set aside and is issued as a request for quotation (RFQ). The solicitation includes various updates and attachments, and a site visit is scheduled for A…

    MS

    Posted Sep 11, 2026Due Sep 18, 2026Combined Synopsis/SolicitationNAICS 237110Service-Disabled Veteran-Owned Small Business (SDVOSB) Set-Aside (FAR 19.14)Sol: FA301026Q0033
    View details→

    DEPARTMENT OF AGRICULTURE

    REPAIR/REPLACE LOW WATER CROSSING (EL RENO, OK)

    Active

    AI Summary

    The USDA Agricultural Research Service in El Reno, OK, is seeking quotations for the repair or replacement of a low water crossing. This opportunity is set aside for small businesses and is issued as a Request for Quotation (RFQ). Interested parties should refer to the attached specifications and drawings for detailed …

    MD

    Posted Sep 11, 2026Due Sep 23, 2026Combined Synopsis/SolicitationNAICS 237310Total Small Business Set-Aside (FAR 19.5)Sol: 1232SA26Q1424
    View details→

    DEPT OF DEFENSE

    INSTALL UTILITIES - RV CAMPGROUND SITE - ROCK ISLAND ARSENAL (AMENDMENT 0003)

    Active

    AI Summary

    The Army Contracting Command - Rock Island is soliciting proposals for the installation of utilities at the RV Campground Site on Rock Island Arsenal, Illinois. Interested bidders should refer to the attached amendments for updates and details regarding the site visit and contract performance.

    IL

    Posted Sep 11, 2026Due Sep 15, 2026SolicitationNAICS 237110Total Small Business Set-Aside (FAR 19.5)Sol: W519TC-26-R-A072
    View details→

    DEPT OF DEFENSE

    TENKILLER REPLACE SERVICE GATES

    Active

    AI Summary

    The Department of Defense is seeking sources for the replacement of service gates at Tenkiller. This opportunity is categorized under construction services, specifically focusing on gate replacement. Interested parties should refer to the attached documentation for further details.

    OK

    Posted Sep 11, 2026Due Sep 25, 2026Sources SoughtNAICS 237990Sol: CY1001
    View details→

    DEPT OF DEFENSE

    SOR WATERLINE REPAIR

    Active

    AI Summary

    The Department of Defense is soliciting proposals for the design and construction of a high-pressure waterline and associated systems at Kirtland AFB. The project includes replacing existing infrastructure and upgrading control systems. A site visit is scheduled for September 3, 2026, with specific access requirements.…

    NM

    Posted Sep 11, 2026Due Sep 17, 2026SolicitationNAICS 237110Total Small Business Set-Aside (FAR 19.5)Sol: FA940126R0023
    View details→

    DEPT OF DEFENSE

    117 FUEL TANK REMOVAL

    Active

    AI Summary

    The 117th Air Refueling Wing requires a contractor to remove three fuel tanks and associated components at Bldg. 40 in Birmingham, Alabama. A site visit is encouraged on September 17, 2026, with pre-registration required. Offers must be submitted electronically by the deadline, including necessary documentation and pas…

    AL

    Posted Sep 11, 2026Due Sep 23, 2026Combined Synopsis/SolicitationNAICS 237120Total Small Business Set-Aside (FAR 19.5)Sol: W50S6M26QA018
    View details→

    DEPARTMENT OF AGRICULTURE

    ASSUNPINK CREEK SITE 8 DAM REHAB – NRCS-NEW JERSEY

    Active

    AI Summary

    The Assunpink Creek Site 8 Dam Rehabilitation project is a combined synopsis/solicitation for commercial items, set aside for small businesses. Quotations are due by September 21, 2026, with a site showing on September 17, 2026. The project aims to rehabilitate the dam to meet safety criteria and maintain flood protect…

    DC

    Posted Sep 11, 2026Due Sep 21, 2026Combined Synopsis/SolicitationNAICS 237990Total Small Business Set-Aside (FAR 19.5)Sol: 12FPC326Q0056
    View details→

    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    19,360
    sled
    40,929
    forecast
    462

    Related NAICS Codes

    • 23, Construction→
    • 236, Construction of Buildings→
    • 2361, Residential Building Construction→
    • 23611, Residential Building Construction→
    • 236115, New Single-Family Housing Construction (except For-Sale Builders) →
    • 236116, New Multifamily Housing Construction (except For-Sale Builders) →
    • 236117, New Housing For-Sale Builders →
    • 236118, Residential Remodelers →
    • 2362, Nonresidential Building Construction→
    • 23621, Industrial Building Construction→

    Explore

    • 237 Definition→
    • Browse NAICS Codes→
    • PSC Contract Lanes→
    • AI Contract Categories→
    • Browse by Agency→
    • Browse by State→

    About NAICS 237

    This industry comprises establishments primarily engaged in heavy and civil engineering construction, including projects such as highways, bridges, tunnels, and utility systems. It involves specialized construction activities that require engineering expertise and heavy equipment.

    Read the full NAICS definition →