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    1. Home
    2. /Gov Explore
    3. /NAICS Codes
    4. /81131

    NAICS Demand Lane

    Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance, Contract Opportunities

    9,519 total opportunities (9,519 active) tied to NAICS 81131 across federal, state, local, and forecast sources.
    NAICS 81131Federal + SLED9.5K total
    View NAICS definition →
    Total Opportunities
    9.5K
    Across all indexed sources
    Active Estimate
    9.5K
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest federal solicitations for NAICS 81131.

    DEPT OF DEFENSE

    EQUIPMENT SUPPORT SERVICES (ESS) GUAM

    Active

    AI Summary

    The Department of Defense is seeking proposals for Equipment Support Services in Guam. The solicitation is delayed due to technical issues, with a revised posting date anticipated by 22 September 2026. Interested offerors should monitor SAM.gov for updates and prepare for proposal submission based on the actual release…

    CA

    Posted Sep 16, 2026Due Sep 23, 2026PresolicitationNAICS 811310Total Small Business Set-Aside (FAR 19.5)Sol: N3943026R2008
    View details→

    DEPARTMENT OF THE INTERIOR

    H--COLUMBIA CASCADES AREA OFFICE (CCAO) FIRE EXTINGUI

    Active

    AI Summary

    The Columbia Cascades Area Office (CCAO) is seeking proposals for fire extinguisher services. The solicitation has been amended to extend the closing date to 1600 Mountain Time on September 18, 2026. Interested bidders should prepare their submissions accordingly.

    ID

    Posted Sep 15, 2026Due Sep 18, 2026SolicitationNAICS 811310Total Small Business Set-Aside (FAR 19.5)Sol: 140R1726Q0051
    View details→

    DEPARTMENT OF AGRICULTURE

    SPECIAL NOTICE OF INTENT TO RESTRICT COMPETITION—SKID STEER REPAIR

    Active

    AI Summary

    The USDA Forest Service intends to restrict competition for skid steer repair services to Western States CAT, currently evaluating the equipment. This decision aims to minimize costs and delays associated with relocating the inoperable skid steer. Interested vendors who can meet the requirements should submit a capabil…

    OR

    Posted Sep 15, 2026Due Sep 22, 2026Special NoticeNAICS 811310Sol: FS-1176500-SPECIAL
    View details→

    DEPT OF DEFENSE

    BARGE #600 HYDRAULIC LINES REPLACEMENT FOR MISSOURI RIVER PROJECT OFFICE (MRPO)

    Active

    AI Summary

    The Department of Defense is soliciting bids for the replacement of hydraulic lines on Barge #600 for the Missouri River Project Office. A site visit is scheduled for September 11, 2026, with RSVP instructions and confined space documentation required for access. Interested bidders should review the solicitation for fu…

    NE

    Posted Sep 15, 2026Due Sep 18, 2026SolicitationNAICS 811310Total Small Business Set-Aside (FAR 19.5)Sol: W9128F26QA097
    View details→

    DEPT OF DEFENSE

    GENERATOR PREVENTATIVE MAINTENANCE SERVICES

    Active

    AI Summary

    The Department of Defense is seeking offers for generator preventative maintenance services under solicitation W50S8R26Q0025. This is a small business set-aside opportunity, and the work includes maintenance and inspection of generators. The contract will utilize simplified acquisition procedures and is set for a perfo…

    OH

    Posted Sep 15, 2026Due Sep 21, 2026Combined Synopsis/SolicitationNAICS 811310Total Small Business Set-Aside (FAR 19.5)Sol: W50S8R26Q0025
    View details→

    DEPT OF DEFENSE

    LINK-BELT RTC-8030 CRANE REPAIR

    Active

    AI Summary

    The Department of Defense is seeking a contractor to repair the Link-Belt RTC-8030 crane, ensuring it meets all operational and safety standards. The contractor will provide necessary personnel, equipment, and materials for the repair, with a performance period of 90 days from contract award. Amendment 0001 addresses t…

    AR

    Posted Sep 15, 2026Due Sep 24, 2026Combined Synopsis/SolicitationNAICS 811310Sol: W9127S26QA058
    View details→

    DEPT OF DEFENSE

    RFQ - UNINTERRUPTIBLE POWER SUPPLY (UPS) UNITS MAINTENANCE AND REPAIR SUPPORT SERVICES

    Archived

    AI Summary

    The Department of Defense is seeking quotes for maintenance and repair support services for uninterruptible power supply (UPS) units. Interested parties should direct all communications to the designated U.S. Army Contracting Command representatives. The opportunity falls under NAICS code 811310 and is subject to FAR P…

    MD

    Posted Sep 15, 2026Due Feb 23, 2026SolicitationNAICS 811310Sol: PANAPG-26-Q-0UPS
    View details→

    DEPARTMENT OF AGRICULTURE

    USDA-GIFVL FORKLIFT REPAIR FOR CHAPMAN RESEARCH FARM IN CHAPMAN, MAINE

    Active

    AI Summary

    The USDA is seeking quotations for the repair and installation of a new motor for a Toyota forklift at the Chapman Research Farm in Maine. This opportunity is unrestricted and not set-aside for small businesses. Interested parties should refer to the attached documents for further details.

    MD

    Posted Sep 15, 2026Due Sep 18, 2026Combined Synopsis/SolicitationNAICS 811310Sol: 1232SA26Q1474
    View details→

    DEPT OF DEFENSE

    LD5 ANCHOR BAR REFURBISHMENT

    Active

    AI Summary

    This opportunity involves the refurbishment of eight used Government-owned anchor bar assemblies, which are in poor condition. The contractor will disassemble, clean, inspect, and reassemble the units, ensuring they meet specified tolerances. The procurement is set aside for small businesses and includes a Question and…

    MN

    Posted Sep 15, 2026Due Sep 25, 2026SolicitationNAICS 811310Total Small Business Set-Aside (FAR 19.5)Sol: W912ES26QA100
    View details→

    DEPARTMENT OF AGRICULTURE

    USDA FOREST SERVICE OCONALUFTEE JOB CORPS CENTER ANNUAL GENERATOR MAINTENANCE

    Active

    AI Summary

    The USDA Forest Service is seeking quotations for annual generator maintenance at the Oconaluftee Job Corps Center. This opportunity is set-aside for small businesses and is issued as a Request for Quotation (RFQ). Interested parties should submit their quotations for consideration.

    DC

    Posted Sep 15, 2026Due Sep 25, 2026Combined Synopsis/SolicitationNAICS 811310Total Small Business Set-Aside (FAR 19.5)Sol: 12318726Q0216
    View details→

    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    8,482
    sled
    961
    forecast
    76

    Related NAICS Codes

    • 81, Other Services (except Public Administration)→
    • 811, Repair and Maintenance→
    • 8111, Automotive Repair and Maintenance→
    • 81111, Automotive Mechanical and Electrical Repair and Maintenance→
    • 811111, General Automotive Repair →
    • 811114, Specialized Automotive Repair →
    • 81112, Automotive Body, Paint, Interior, and Glass Repair→
    • 811121, Automotive Body, Paint, and Interior Repair and Maintenance →
    • 811122, Automotive Glass Replacement Shops →
    • 81119, Other Automotive Repair and Maintenance→

    Explore

    • 81131 Definition→
    • Browse NAICS Codes→
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    • Browse by Agency→
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    About NAICS 81131

    This industry comprises establishments primarily engaged in repairing and maintaining commercial and industrial machinery and equipment, excluding automotive and electronic equipment. Services include repair and maintenance of machinery used in manufacturing, construction, and other industrial applications.

    Read the full NAICS definition →