NAICS Demand Lane

    Heavy and Civil Engineering Construction — Contract Opportunities

    51,410 total opportunities (51,410 active) tied to NAICS 237 across federal, state, local, and forecast sources.
    NAICS 237Federal + SLED51.4K total
    Total Opportunities
    51.4K
    Across all indexed sources
    Active Estimate
    51.4K
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest federal solicitations for NAICS 237.

    AI Summary

    This opportunity involves the replacement of fire hydrants and drain gate valves at Pump Station No. 1, DFSP Hachinohe, Japan. Contractors must comply with local laws and have a Japanese bank account. A pre-quote meeting is scheduled for 28 Jul 2026, and quotes are due by 7 Aug 2026. Ensure all submission guidelines ar…

    AP

    Posted Jul 13, 2026Due Aug 7, 2026SolicitationNAICS 237110Sol: N4008426Q7008
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    AI Summary

    The Naval Facilities Engineering Systems Command (NAVFAC) Marianas is seeking a sole-source contract modification for emergency repairs to the Glass Breakwater at Apra Harbor, Guam. This urgent work, valued at $30 million, addresses damage from Typhoon Sinlaku and includes critical stabilization services such as survey…

    AP

    Posted Jul 13, 2026JustificationNAICS 237990Sol: N40192-26-JARS-005
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    AI Summary

    The Department of State is soliciting quotes for septic tank replacement. Interested bidders must submit their quotations electronically by July 23, 2026. A site visit is scheduled for July 17, 2026, and attendance is limited to three personnel per offeror. Ensure compliance with submission requirements and SAM registr…

    DC

    Posted Jul 13, 2026Due Jul 23, 2026SolicitationNAICS 237110Sol: 19TH2026Q0044
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    AI Summary

    The Department of Defense is announcing a presolicitation for a project at Antonio Bautista Air Base in the Philippines, focusing on the repair of aboveground fuel storage. Contractors interested in a site visit must submit a Base Access Request by May 20, 2026. The solicitation is expected to be issued around June-Jul…

    AP

    Posted Jul 11, 2026Due Jul 11, 2026PresolicitationNAICS 237120Sol: N4008426T7502
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    AI Summary

    The opportunity involves the rehabilitation of the Beaver Lake Dam, including improvements to draw down water levels, clearing and grubbing, excavating and removing existing overflow conduit, and repairing spillway erosion with riprap. This is a combined synopsis/solicitation issued by the Department of Agriculture - F…

    DC

    Posted Jul 10, 2026Due Jul 20, 2026Combined Synopsis/SolicitationNAICS 237310Total Small Business Set-Aside (FAR 19.5)Sol: 12363N26Q4161
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    AI Summary

    The Department of the Air Force is soliciting proposals for the installation of new fiber optic cable from ITB 910 to ITB 1365 at Luke Air Force Base, Arizona. This opportunity is set aside for SBA certified Women Owned Small Businesses. Proposals are due electronically by 27 July 2026. A site visit is scheduled for 9 …

    AZ

    Posted Jul 10, 2026Due Jul 27, 2026SolicitationNAICS 237130SBA Certified Women-Owned Small Business (WOSB) Program Set-Aside (FAR 19.15)Sol: FA488726R0008
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    AI Summary

    The National Park Service is soliciting proposals for the installation of a temporary wastewater treatment plant at the North Rim. This project involves both construction services and product installation. Interested bidders should prepare to meet the requirements outlined in the solicitation.

    CO

    Posted Jul 10, 2026Due Jul 29, 2026SolicitationNAICS 237110Sol: 140P2026R0075
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    AI Summary

    The USFS is seeking quotations for the Little Isabella River culvert replacement project in the Tofte Ranger District. This RFQ is set aside for small businesses and involves the removal of existing culverts and installation of new precast concrete structures. The project magnitude is estimated between $500,000 and $1,…

    GA

    Posted Jul 10, 2026Due Jul 15, 2026Combined Synopsis/SolicitationNAICS 237310Total Small Business Set-Aside (FAR 19.5)Sol: 12445526Q0073
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    AI Summary

    The Department of Defense is seeking small businesses for the Gavins Point Raw Water Intake Zebra Mussel Mitigation project. The contractor will design and install a zebra mussel abatement system, including local tank skids and pump skids. The estimated construction cost is between $250,000 and $500,000, with a complet…

    NE

    Posted Jul 10, 2026Due Jul 27, 2026PresolicitationNAICS 237110Total Small Business Set-Aside (FAR 19.5)Sol: W9128F26QA074
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    AI Summary

    The US Forest Service requires an Indefinite Delivery-Indefinite Quantity (IDIQ) contract for road and bridge construction projects. This opportunity is set aside for small businesses, with a ceiling of $100 million and a five-year ordering period. Interested bidders should attend site visits for specific projects in N…

    NM

    Posted Jul 10, 2026Due Jul 24, 2026SolicitationNAICS 237310Total Small Business Set-Aside (FAR 19.5)Sol: 127EAX26R0006
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    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    18,998
    sled
    31,721
    forecast
    691

    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 →

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