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    1. Home
    2. /Gov Explore
    3. /NAICS Codes
    4. /33661

    NAICS Demand Lane

    Ship and Boat Building, Contract Opportunities

    11,537 total opportunities (11,537 active) tied to NAICS 33661 across federal, state, local, and forecast sources.
    NAICS 33661Federal + SLED11.5K total
    View NAICS definition →
    Total Opportunities
    11.5K
    Across all indexed sources
    Active Estimate
    11.5K
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest federal solicitations for NAICS 33661.

    DEPARTMENT OF HOMELAND SECURITY

    USCGC CALHOUN OIL AND FUEL PURIFIER

    Active

    AI Summary

    The US Coast Guard is seeking a contractor to provide spare parts kits and special tools for the maintenance of the Lube Oil Purifier and Fuel Oil Purifier on the CGC CALHOUN. The objective is to ensure safe and reliable operations. Delivery is required within 12 weeks after receipt of order.

    CA

    Posted Aug 26, 2026Due Sep 1, 2026Combined Synopsis/SolicitationNAICS 336611Total Small Business Set-Aside (FAR 19.5)Sol: 70z08526Q0027072
    View details→

    DEPT OF DEFENSE

    FLOWSERVE HPU COOLING PUMP FOR DREDGE ESSAYONS

    Active

    AI Summary

    The US Army Corp of Engineers seeks quotes for two Flowserve HPU Cooling Pumps for the Dredge Essayons. This opportunity is a 100% Total Small Business Set-Aside under NAICS code 336611. Quotes are due by September 2, 2026, at 12:00 PM Pacific. All offerors must be registered in SAM to be eligible for award.

    OR

    Posted Aug 26, 2026Due Sep 2, 2026SolicitationNAICS 336611Total Small Business Set-Aside (FAR 19.5)Sol: W9127N26QA130
    View details→

    DEPT OF DEFENSE

    3424 LRC KENOSHA TUG REPLACEMENT

    Active

    AI Summary

    The U.S. Army Corps of Engineers is soliciting bids for a new self-propelled tugboat under solicitation number W912BU26BA030. This opportunity is set aside for small businesses and requires delivery of the vessel within 750 days after award. Bids are due by September 8, 2026, at 1500 EDT. Interested parties should subm…

    PA

    Posted Aug 26, 2026Due Sep 8, 2026Combined Synopsis/SolicitationNAICS 336611Total Small Business Set-Aside (FAR 19.5)Sol: W912BU26BA030
    View details→

    DEPARTMENT OF HOMELAND SECURITY

    DRYDOCK REPAIRS FOR THE CGC ANVIL

    Active

    AI Summary

    The U.S. Coast Guard is seeking sources for dry dock repairs for the USCGC ANVIL, with a performance period starting on February 23, 2027. This sources sought notice aims to identify capable contractors and gather market information. Responses are due by September 8, 2026, and should include company details and busines…

    CA

    Posted Aug 26, 2026Due Sep 8, 2026Sources SoughtNAICS 336611Sol: DDFY27ANVIL
    View details→

    DEPT OF DEFENSE

    USNS ALAN SHEPARD FY26 MTA

    Active

    AI Summary

    The USNS Alan Shepard FY26 MTA solicitation has been amended to revise Section F, changing the timeline from October 10, 2026, to November 10, 2026, with the end date now set for December 29, 2026. This opportunity involves both products and services related to naval vessels for the Department of Defense.

    VA

    Posted Aug 26, 2026Due Sep 4, 2026SolicitationNAICS 336611Sol: N3220526R0025
    View details→

    DEPARTMENT OF HOMELAND SECURITY

    CGC VIGOROUS DD &DS FY27

    Active

    AI Summary

    The opportunity involves drydock and dockside repairs for the CGC VIGOROUS under the Department of Homeland Security. The solicitation due date has been extended to September 25, 2026. Bidders should prepare to submit proposals in response to this combined synopsis/solicitation.

    VA

    Posted Aug 26, 2026Due Sep 25, 2026Combined Synopsis/SolicitationNAICS 336611Total Small Business Set-Aside (FAR 19.5)Sol: 70Z08026QMECP0033
    View details→

    DEPARTMENT OF HOMELAND SECURITY

    CLASS 4 INSHORE PATROL VESSELS

    Active

    AI Summary

    U.S. Customs and Border Protection is seeking industry feedback on Class 4 Inshore Patrol Vessels for various maritime missions. The focus is on commercially available or custom-configured vessels, including Patrol Boat-Small and Patrol Boat-Medium categories. This opportunity is for market research only and does not c…

    DC

    Posted Aug 26, 2026Due Sep 16, 2026Sources SoughtNAICS 336612Sol: CBP-CLASS4-IPV-VHULL-073026-001
    View details→

    DEPARTMENT OF THE INTERIOR

    J--HAULOUT OF THE R/V STURGEON

    Active

    AI Summary

    The opportunity involves the haulout of the R/V Sturgeon for the Department of the Interior's US Geological Survey. It is a combined synopsis/solicitation, and an amendment has been issued to address questions. Bidders should refer to the provided installation manual for specific requirements.

    CO

    Posted Aug 26, 2026Due Sep 9, 2026Combined Synopsis/SolicitationNAICS 336611Total Small Business Set-Aside (FAR 19.5)Sol: 140G0226R0020
    View details→

    DEPT OF DEFENSE

    PITCH,FEEDBACK,MECH

    Active

    AI Summary

    The Department of Defense is soliciting quotes for the manufacture of PITCH, FEEDBACK, MECH components under RFQ procedures. This opportunity is classified under NAICS 336612 and involves fixed-price contracts with specific inspection and acceptance requirements. Bidders must comply with all outlined specifications and…

    PA

    Posted Aug 26, 2026Due Sep 9, 2026SolicitationNAICS 336612Sol: SPRMM126QMJ03
    View details→

    DEPT OF DEFENSE

    EXCEPTION TO FAIR OPPORTUNITY USS TULSA OCONUS EM

    Archived

    AI Summary

    This opportunity involves providing 8000 hours of maintenance for the Number 1 and Number 2 Main Propulsion Diesel Engines onboard the USS TULSA while operating outside the continental United States. Bidders should be prepared to meet the specific requirements set forth by the Department of Defense and the Department o…

    AP

    Posted Aug 26, 2026JustificationNAICS 336611Sol: JA260085
    View details→

    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    10,778
    sled
    418
    forecast
    341

    Related NAICS Codes

    • 331, Primary Metal Manufacturing→
    • 3311, Iron and Steel Mills and Ferroalloy Manufacturing→
    • 33111, Iron and Steel Mills and Ferroalloy Manufacturing→
    • 331110, Iron and Steel Mills and Ferroalloy Manufacturing →
    • 3312, Steel Product Manufacturing from Purchased Steel→
    • 33121, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel→
    • 331210, Iron and Steel Pipe and Tube Manufacturing from Purchased Steel→
    • 33122, Rolling and Drawing of Purchased Steel→
    • 331221, Rolled Steel Shape Manufacturing →
    • 331222, Steel Wire Drawing →

    Explore

    • 33661 Definition→
    • Browse NAICS Codes→
    • PSC Contract Lanes→
    • AI Contract Categories→
    • Browse by Agency→
    • Browse by State→

    About NAICS 33661

    This industry comprises establishments primarily engaged in building ships, boats, and other floating vessels. Activities include constructing new vessels and major alterations or conversions of existing vessels.

    Read the full NAICS definition →