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    561621 - Security Systems Services (except Locksmiths)

    In today’s world, safety and security are top priorities for businesses and homeowners alike. NAICS code 561621, designated for Security Systems Services (except Locksmiths), plays a critical role in the protection of properties and assets through advanced electronic security measures. Whether it's installing, monitoring, or maintaining security and fire alarm systems, establishments under this code offer essential services that keep our environments safe and secure.


    What is NAICS Code 561621?

    NAICS Code 561621 covers establishments primarily engaged in providing security systems services, excluding locksmith services. This industry is focused on electronic solutions, including:

    • Installation of security and fire alarm systems
    • Monitoring security alarms remotely
    • Maintaining and repairing alarm systems

    These services serve as a frontline defense against theft, fire, and other hazards by integrating modern technology to safeguard people and property.


    Sector Overview

    This industry belongs to the larger sector:

    Administrative and Support and Waste Management and Remediation Services

    Businesses classified under NAICS code 561621 contribute significantly by offering specialized support services that ensure safety protocols are effectively implemented and maintained.


    Typical Business Activities Covered Under NAICS 561621

    Companies and organizations operating in this industry commonly engage in the following activities:

    • Security alarm installation companies
    • Electronic monitoring service providers
    • Fire and burglar alarm system maintenance firms

    These firms not only install security systems but also combine sales with repair, maintenance, and 24/7 monitoring services, ensuring comprehensive protection for their clients.


    Size Standard for NAICS 561621

    To qualify as a "small business" under this NAICS code, a company must have annual revenues of $25 million or less. This size standard is used by government agencies to determine eligibility for small business programs and contracting opportunities.

    Understanding size standards helps businesses target subcontracting and procurement opportunities effectively, especially within government contracting.


    Detailed Code Services Included in NAICS 561621

    Service Category Description
    Alarm system monitoring services Remote monitoring of alarm systems
    Alarm systems sales combined with installation, repair, or monitoring services Sales bundled with installation, repair, or ongoing monitoring
    Burglar alarm monitoring services Specialized monitoring for burglary prevention
    Burglar alarm sales combined with installation, repair, or monitoring services Selling burglar alarms with additional technical services
    Fire alarm monitoring services Remote supervision and alerting of fire alarm systems
    Fire alarm sales combined with installation, repair, or monitoring services Combined sales and technical services related to fire alarms
    Security alarm systems sales combined with installation, repair, or monitoring services Sales with value-added security alarm system services
    Security system monitoring services Continuous surveillance and alerting of security systems

    Examples of Businesses Under NAICS 561621

    • SecureTech Alarm Solutions – Specializes in burglar and fire alarm system installation and remote monitoring services.
    • Guardian Fire & Security – Offers fire alarm sales, installation, and regular maintenance contracts.
    • WatchTower Electronic Monitoring – Provides 24/7 security system monitoring and repair services for commercial clients.

    Frequently Asked Questions (FAQ)

    What types of services are excluded from NAICS 561621?

    This NAICS code excludes locksmith services, which have a separate classification. It focuses solely on electronic security system services.

    Can businesses offering locksmith services also qualify under 561621?

    No, locksmith services fall under a different NAICS code (561622). Businesses must primarily provide electronic security system services to be classified under 561621.

    What are the benefits of government contracting under NAICS 561621?

    Businesses under this code can access federal contracts for security installations and monitoring services, particularly in public sector facilities, schools, and government buildings.

    How can a business verify its size standard eligibility?

    Companies can review their annual revenue figures against the $25 million standard defined by the Small Business Administration (SBA) to determine if they qualify as a small business.

    Does NAICS 561621 include monitoring services only?

    No, it includes a range of services such as sales, installation, repair, and overall maintenance, alongside remote monitoring.


    Conclusion

    NAICS code 561621 plays a vital role in the security industry by covering a wide range of electronic security systems services — from installation to monitoring and maintenance — excluding locksmith work. If your business operates in this sector, understanding this NAICS classification and its size standards can unlock valuable government contracting and growth opportunities. Stay informed, leverage this knowledge, and position your security services for success in today’s safety-conscious market.


    Keywords: NAICS code 561621, Security Systems Services, electronic security monitoring, fire alarm installation, burglar alarm maintenance, security system sales, government contracting security services, SBA size standards, security alarm companies