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    ← Back to NAICS AI Search

    561 - Administrative and Support Services

    When navigating government contracting or business classification, knowing your NAICS code is crucial. NAICS code 561, titled Administrative and Support Services, represents a vital sector that supports the day-to-day operations of countless organizations across the U.S. economy. From staffing solutions to security and janitorial services, businesses classified under this code play a foundational role in maintaining operational efficiency across industries.

    What is NAICS Code 561?

    NAICS code 561 covers establishments primarily engaged in performing routine administrative and support activities for other organizations. These services are essential back-office and operational functions that enable businesses to focus on their core competencies without being bogged down by everyday administrative tasks.

    Sector

    • Sector Name: Administrative and Support and Waste Management and Remediation Services
    • Code: 561

    Key Services Included:

    • Office administration
    • Hiring and personnel placement
    • Security services
    • Cleaning and janitorial services
    • Waste disposal

    These activities provide the scaffolding that supports organizational success by offering specialized expertise in non-core business functions.

    Typical Business Activities Under NAICS 561

    Businesses categorized within NAICS code 561 provide a range of professional support services, including but not limited to:

    • Employment Placement Agencies: Assisting clients in recruiting and placing qualified personnel across various industries.
    • Security Guard Services: Offering protective services to safeguard properties, assets, and personnel.
    • Janitorial Services: Providing cleaning and maintenance services for commercial and residential properties.

    Other activities encompassed include building maintenance, travel arrangement services, and document preparation services.

    Size Standards for NAICS Code 561

    To qualify as a small business under this NAICS code for government contracting, size standards generally depend on annual revenue:

    Subsector Size Standard (Revenue)
    Employment Placement Agencies $16.5 million
    Security Services $30 million
    Janitorial Services $30 million
    All other Administrative Support Varies, generally $16.5 to $30 million

    Note: These size standards are subject to periodic updates by the U.S. Small Business Administration (SBA).

    Comprehensive Code Details for NAICS 561

    Attribute Description
    NAICS Code 561
    Title Administrative and Support Services
    Sector Administrative and Support and Waste Management and Remediation Services
    Description Establishments providing routine administrative and support activities such as office management, personnel placement, security, cleaning, and waste disposal.
    Typical Business Types Employment placement agencies, Security guard services, Janitorial services, Building maintenance
    Size Standards Revenue-based, typically $16.5 million to $30 million depending on sub-industry
    Relevant Keywords Administrative services, support services, NAICS 561, government contracting, employment agencies, security services, janitorial services

    Frequently Asked Questions (FAQs) about NAICS Code 561

    Q1: What industries fall under NAICS code 561?
    A1: The code encompasses industries like employment agencies, security services, janitorial and cleaning services, office administration, document preparation, and other administrative support functions.

    Q2: Can a small business qualify under NAICS 561 for government contracts?
    A2: Yes. Most subcategories under NAICS 561 have defined size standards to determine small business eligibility, often based on annual revenue.

    Q3: Is waste management included in NAICS 561?
    A3: Only certain waste disposal services related to administrative support are included; comprehensive waste management is typically classified elsewhere in the related broader sector.

    Q4: How is NAICS 561 useful for businesses?
    A4: It helps businesses identify their industry classification for government contracting, tax purposes, and market analysis.

    Q5: Where can I find the most current size standards for NAICS 561?
    A5: The U.S. Small Business Administration (SBA) website regularly updates size standards for all NAICS codes.


    By understanding NAICS Code 561 – Administrative and Support Services, businesses can better position themselves for government contracts and commercial opportunities. This sector remains a backbone for organizational efficiency, offering vital services that keep the wheels of commerce turning smoothly.

    Keywords: NAICS code 561, administrative support services, employment placement agencies, security guard services, janitorial services, government contracting, SBA size standards

    View Active Opportunities for NAICS 561

    See current federal, state, and local government contracts using this NAICS code.

    Browse 561 Opportunities →
    ← Back to NAICS Browser

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