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    1. Home
    2. /Gov Explore
    3. /NAICS Codes
    4. /48839

    NAICS Demand Lane

    Other Support Activities for Water Transportation, Contract Opportunities

    292 total opportunities (292 active) tied to NAICS 48839 across federal, state, local, and forecast sources.
    NAICS 48839Federal + SLED292 total
    View NAICS definition →
    Total Opportunities
    292
    Across all indexed sources
    Active Estimate
    292
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest federal solicitations for NAICS 48839.

    DEPARTMENT OF HOMELAND SECURITY

    TRAINING VESSELS FOR USCG MARITIME SECURITY RESPONSE TEAM

    Archived

    AI Summary

    The US Coast Guard is seeking quotes for training vessels for the Maritime Security Response Team. This RFQ is for services related to water transportation, with a performance period from September 8 to September 9, 2026. Quotes are due by August 14, 2026, at 10:00 AM Pacific Time.

    VA

    Posted Aug 20, 2026Due Aug 19, 2026Combined Synopsis/SolicitationNAICS 488390Sol: 70Z08426QDL940024
    View details→

    DEPT OF DEFENSE

    UNDERWATER HULL MAINTENANCE AND REPAIR SERVICES - MILITARY SEALIFT COMMAND

    Active

    AI Summary

    This opportunity is a request for proposal (RFP) for underwater hull maintenance and repair services for Military Sealift Command vessels. The services include hull cleaning, inspection, and incidental repairs, to be performed worldwide. Proposals are due by 5:00 PM Eastern Time on 20 August 2026, and must be submitted…

    VA

    Posted Aug 19, 2026Due Sep 3, 2026Combined Synopsis/SolicitationNAICS 488390Sol: N3220526R0002
    View details→

    DEPT OF DEFENSE

    NSAND GAETA FLOATING PIER

    Active

    AI Summary

    The Department of Defense is soliciting for the removal and replacement of the Port Operations floating pier in Gaeta. The project requires maintaining harbor capacity for 4 boats during construction and increasing it to 5 slips upon completion. The work must be finished by FY26, with the RFQ extended to August 31, 202…

    AE

    Posted Aug 17, 2026Due Aug 31, 2026SolicitationNAICS 488390Sol: N6817126QN066
    View details→

    DEPT OF DEFENSE

    JB CHS SMALL BOAT MAINTENANCE AND REPAIR SERVICES

    Archived

    AI Summary

    The Department of Defense is seeking small business contractors for small boat maintenance and repair services at Joint Base Charleston. This RFQ requires comprehensive service capabilities, including preventative maintenance and inspections, with a performance period from October 2026 to September 2031. Offers are due…

    SC

    Posted Aug 6, 2026Due Aug 14, 2026Combined Synopsis/SolicitationNAICS 488390Total Small Business Set-Aside (FAR 19.5)Sol: FA441826Q0051
    View details→

    DEPT OF DEFENSE

    FY26 SHOALHUNTER DRY DOCK MAINTENANCE AND REPAIRS

    Archived

    AI Summary

    The Department of Defense is seeking proposals for the maintenance and repair of the Shoalhunter dry dock. This includes all labor, materials, and equipment necessary for minor repairs, retrofitting, and upgrades to both interior and exterior equipment. Proposals are due by July 28, 2026.

    WA

    Posted Jul 21, 2026Due Jul 28, 2026SolicitationNAICS 488390Total Small Business Set-Aside (FAR 19.5)Sol: W912DW26QA084
    View details→

    DEPARTMENT OF HOMELAND SECURITY

    USCG MSRT WEST PIER-SIDE AND UNDERWAY TRAINING VESSELS

    Archived

    AI Summary

    The US Coast Guard is seeking quotes for training vessels for the Maritime Security Response Team (MSRT) West. This RFQ is for services related to water transportation, with a performance period from July 29, 2026, to September 23, 2026. Quotes are due by July 21, 2026, at 10:00 AM Pacific Time.

    VA

    Posted Jul 14, 2026Due Jul 21, 2026Combined Synopsis/SolicitationNAICS 488390Sol: 34269PR260000032
    View details→

    DEPT OF DEFENSE

    INTENT TO SOLE SOURCE, LIFE RAFT SERVICES

    Archived

    AI Summary

    The Department of Defense, specifically the Navy, intends to sole source life raft services, including the delivery of modified UNI-PAC II life rafts and a Mechanical Reverse Osmosis Desalinator. The response due date has been extended to 15 July 2026. Interested parties should prepare to submit their proposals accordi…

    WA

    Posted Jul 13, 2026Due Jul 6, 2026Combined Synopsis/SolicitationNAICS 488390Sol: N0040626Q0266
    View details→

    DEPT OF DEFENSE

    Operation, Maintenance, and Repair of Motor Vessel Independence (M/V Independence Support)

    Archived

    AI Summary

    This opportunity involves the operation, maintenance, and repair of the Motor Vessel Independence, owned by the Naval Facilities Command. The contract supports various naval operations, including oceanographic surveys and environmental data collection. Interested bidders should note that this is a service contract and …

    CA

    Posted Jul 13, 2026Due Jul 17, 2026SolicitationNAICS 488390Small Business Set Aside - TotalSol: N3943026R4001
    View details→

    DEPARTMENT OF COMMERCE

    BARGE/VESSEL AND CRANE SERVICES CORPUS CHRISTI, TX

    Archived

    AI Summary

    The NOAA is seeking offers for barge, vessel, and crane services to lift an aluminum fabricated frame onto a concrete pier in Corpus Christi, Texas. This opportunity is unrestricted and requires compliance with all terms and conditions outlined in the combined synopsis/solicitation. Interested vendors must provide cont…

    VA

    Posted Jun 24, 2026Due Jul 8, 2026Combined Synopsis/SolicitationNAICS 488390Sol: 1305M226Q0173
    View details→

    DEPT OF DEFENSE

    CLEARWATER PROJECT OFFICE DOCK REPAIRS

    Archived

    AI Summary

    The Department of Defense is seeking contractors for repairs to courtesy docks and swim beach lines at Clearwater Project. The contractor must adhere to the standards outlined in the contract. Interested parties should refer to the attached Combined Synopsis/Solicitation for further details.

    AR

    Posted Jun 23, 2026Due Jul 7, 2026Combined Synopsis/SolicitationNAICS 488390Total Small Business Set-Aside (FAR 19.5)Sol: W9127S26QA046
    View details→

    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    208
    sled
    79
    forecast
    5

    Related NAICS Codes

    • 48-49, Transportation and Warehousing→
    • 481, Air Transportation→
    • 4811, Scheduled Air Transportation→
    • 48111, Scheduled Air Transportation→
    • 481111, Scheduled Passenger Air Transportation →
    • 481112, Scheduled Freight Air Transportation →
    • 4812, Nonscheduled Air Transportation→
    • 48121, Nonscheduled Air Transportation→
    • 481211, Nonscheduled Chartered Passenger Air Transportation →
    • 481212, Nonscheduled Chartered Freight Air Transportation →

    Explore

    • 48839 Definition→
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    About NAICS 48839

    This industry comprises establishments primarily engaged in providing support activities for water transportation, such as marine cargo handling, marine pilotage, and other related services. These activities facilitate the operation and management of water transportation but do not include the transportation of goods or passengers themselves.

    Read the full NAICS definition →