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    1. Home
    2. /Gov Explore
    3. /NAICS Codes
    4. /561621

    NAICS Demand Lane

    Security Systems Services (except Locksmiths), Contract Opportunities

    5,858 total opportunities (5,858 active) tied to NAICS 561621 across federal, state, local, and forecast sources.
    NAICS 561621Federal + SLED5.9K total
    View NAICS definition →
    Total Opportunities
    5.9K
    Across all indexed sources
    Active Estimate
    5.9K
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest federal solicitations for NAICS 561621.

    DEPT OF DEFENSE

    FORT BRAGG ACCESS CONTROL AND CCTV MAINTENANCE AND REPAIR (AMENDMENT 0002)

    Active

    AI Summary

    The Department of Defense is seeking a small business to provide maintenance and repair services for Access Control and CCTV systems at Fort Bragg. The solicitation includes a Firm Fixed Price contract with a base year and four option periods. Interested vendors must be registered in SAM and have a CAGE Code.

    NC

    Posted Aug 25, 2026Due Aug 28, 2026SolicitationNAICS 561621Total Small Business Set-Aside (FAR 19.5)Sol: W9124726QA019
    View details→

    DEPT OF DEFENSE

    SECURITY

    Active

    AI Summary

    The Department of Defense, specifically the Department of the Army, has issued a combined synopsis/solicitation for security services. Interested bidders should refer to the attached solicitation for detailed specifications and quantities. This opportunity is set aside for small businesses.

    NY

    Posted Aug 25, 2026Due Sep 2, 2026Combined Synopsis/SolicitationNAICS 561621Total Small Business Set-Aside (FAR 19.5)Sol: W911S226U4256
    View details→

    DEPARTMENT OF THE INTERIOR

    CAMERA REPLACEMENT

    Active

    AI Summary

    The Department of the Interior, Bureau of Indian Affairs, is soliciting proposals for a camera replacement project. This opportunity is classified under NAICS code 561621 and is not set aside for simplified acquisition procedures. Interested bidders should prepare to submit their proposals by the specified deadline.

    NM

    Posted Aug 25, 2026Due Sep 7, 2026SolicitationNAICS 561621Indian Economic Enterprise (IEE) Set-Aside (specific to Department of Interior and Indian Health Services)Sol: 140A2326Q0279
    View details→

    DEPT OF DEFENSE

    SECURITY SYSTEM SERVICES

    Active

    AI Summary

    The Department of Defense is soliciting proposals for a non-personal service contract to provide security system installation, monitoring, and maintenance services at the Three Rivers Regional Office and Aquilla Lake Projects. Interested bidders should refer to Attachment 1 PWS for additional details.

    TX

    Posted Aug 25, 2026Due Sep 9, 2026SolicitationNAICS 561621Total Small Business Set-Aside (FAR 19.5)Sol: W9126G26QA119
    View details→

    DEPT OF DEFENSE

    SOLICITATION RQ FA487726QA198 943MXS CCTV/SECURITY CAMERA INSTALLATION

    Active

    AI Summary

    The Department of Defense, specifically the Department of the Air Force, is soliciting proposals for CCTV and security camera installation services. This opportunity is set aside for small businesses and includes an amendment updating important dates and times in the solicitation document.

    AZ

    Posted Aug 25, 2026Due Sep 9, 2026SolicitationNAICS 561621Total Small Business Set-Aside (FAR 19.5)Sol: FA487726QA198
    View details→

    DEPARTMENT OF THE TREASURY

    FINCEN LOCK & KEY MAINTENANCE SUPPORT - REQUEST FOR QUOTE

    Active

    AI Summary

    The Department of the Treasury is seeking quotations for lock, key, and TRAKA key management system maintenance and support services. The contractor will provide necessary labor, materials, and technical support to maintain FinCEN's security systems. The contract will be time-and-materials with a performance period fro…

    DC

    Posted Aug 25, 2026Due Aug 28, 2026SolicitationNAICS 561621Total Small Business Set-Aside (FAR 19.5)Sol: 2099CF26Q00006
    View details→

    DEPARTMENT OF VETERANS AFFAIRS

    6350--ELECTRONIC CARD ACCESS CONTROL SYSTEM

    Active

    AI Summary

    The Department of Veterans Affairs is seeking sources for an electronic card access control system for the Central Virginia VA Health Care System. This sources sought notice aims to gather information from qualified businesses regarding their capabilities to provide installation, programming, and training services for …

    VA

    Posted Aug 25, 2026Due Aug 28, 2026Sources SoughtNAICS 561621Sol: 36C24626Q0979
    View details→

    DEPT OF DEFENSE

    HONEYWELL VINDICATOR V3 INTRUSTION DETECTION SYSTEM SUPPORT

    Active

    AI Summary

    The Department of Defense seeks a contractor for life-cycle support of the Honeywell Vindicator V3 intrusion detection system. The contract includes 24/7 technical support, firmware upgrades, and on-site visits for maintenance. The performance period is one year, with an option for an additional year. Contractors must …

    WA

    Posted Aug 24, 2026Due Sep 5, 2026SolicitationNAICS 561621Sol: N6471026Q0015
    View details→

    DEPT OF DEFENSE

    ALBENI FALLS DAM (AFD) ELECTRONIC SECURITY SYSTEM SERVERS AND WORKSTATIONS UPGRADE

    Active

    AI Summary

    The opportunity involves upgrading the electronic security systems servers and workstations at Albeni Falls Dam. Interested bidders should refer to the attached solicitation for detailed information and submission instructions. An amendment has been posted in response to questions as of August 24, 2026.

    WA

    Posted Aug 24, 2026Due Aug 26, 2026SolicitationNAICS 561621Total Small Business Set-Aside (FAR 19.5)Sol: W912DW26QA089
    View details→

    DEPARTMENT OF THE INTERIOR

    J--PHYSICAL ACCESS CONTROL SYSTEM (PACS) UPGRADE

    Active

    AI Summary

    The Department of the Interior is seeking information from capable commercial systems integrators and security contractors for a Physical Access Control System upgrade. This sources sought notice is for planning purposes only and does not constitute a request for proposals. Interested parties should provide their quali…

    CO

    Posted Aug 24, 2026Due Sep 9, 2026Sources SoughtNAICS 561621Sol: 140P2126Q0186
    View details→

    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    4,374
    sled
    1,445
    forecast
    39

    Related NAICS Codes

    • 56, Administrative and Support and Waste Management and Remediation Services→
    • 561, Administrative and Support Services→
    • 5611, Office Administrative Services→
    • 56111, Office Administrative Services→
    • 561110, Office Administrative Services→
    • 5612, Facilities Support Services→
    • 56121, Facilities Support Services→
    • 561210, Facilities Support Services→
    • 5613, Employment Services→
    • 56131, Employment Placement Agencies and Executive Search Services→

    Explore

    • 561621 Definition→
    • Browse NAICS Codes→
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    About NAICS 561621

    This industry comprises establishments primarily engaged in providing security systems services, such as installing, monitoring, and maintaining security and fire alarm systems, excluding locksmith services. These services help protect properties and assets through electronic security measures.

    Read the full NAICS definition →