🚀 State, Local, and Education Contract Opportunities Are Now Available! here

    561110 - Office Administrative Services

    If you’re involved in government contracting or industry classification, you’ve likely come across NAICS Code 561110, which stands for Office Administrative Services. This code plays a pivotal role in defining businesses that provide essential administrative support functions, helping organizations streamline their daily operations efficiently.

    What is NAICS Code 561110?

    NAICS Code 561110 specifically categorizes establishments primarily engaged in providing a wide range of day-to-day office administrative services. These services include tasks such as financial planning, billing and recordkeeping, personnel management, and other similar activities that support businesses and organizations in managing their office operations effectively.

    Sector Overview

    This NAICS code falls under the broader sector:

    • Sector: Administrative and Support and Waste Management and Remediation Services

    This sector encompasses diverse service providers that deliver support to day-to-day business activities, ensuring operational continuity and organizational efficiency.

    Key Business Activities Covered Under NAICS 561110

    Businesses classified under NAICS 561110 typically provide:

    • Billing and recordkeeping services: Managing client bills, invoices, and maintaining accurate financial records.
    • Payroll processing services: Handling payroll administration for companies, ensuring employees are paid accurately and timely.
    • Personnel supply services: Providing staffing and human resource management support.

    Other specialized services include medical office management and various types of management services that do not involve the complete operation of the client's business.

    NAICS Code 561110 Size Standard

    For businesses to qualify as small under this classification, the size standard is $12.5 million in average annual receipts. This benchmark helps government agencies and contracting officers determine eligibility for small business programs.

    Examples of Businesses Under NAICS 561110

    • Companies specializing in office administration services
    • Providers of medical office management services, including managing dental or physician offices
    • Firms offering hotel or motel management (excluding full operation of client business)
    • Agencies supplying industrial or executive management services

    These entities serve a vital role in enabling other businesses to focus on their core functions by handling essential administrative tasks.

    Detailed NAICS 561110 Code Breakdown

    Code Details Description
    Administrative management services Oversight and strategic management support services
    Business management services Coordination and guidance on business processes
    Executive management services High-level administration and decision support
    Hotel management services Managing hotel operations except full business control
    Industrial management services Managing industrial processes and office operations
    Management services (excluding full operation) General management without complete operational responsibilities
    Managing offices of dentists Administrative management specific to dental practices
    Managing offices of physicians and surgeons Medical office administrative support
    Managing offices of professionals (e.g., medical) Management of various professional offices
    Medical office management services Specialized administrative tasks in medical offices
    Motel management services Management of motel facilities (excluding complete operation)
    Office administration services Day-to-day clerical and administrative support
    Office management services Comprehensive office support and management

    Frequently Asked Questions (FAQ)

    What types of businesses are included in NAICS 561110?

    Businesses offering office administration, billing, personnel management, payroll processing, and medical office management fall under this category.

    What sector does NAICS 561110 belong to?

    It belongs to the Administrative and Support and Waste Management and Remediation Services sector.

    What is the size standard for small businesses under this NAICS code?

    The size standard is $12.5 million in average annual receipts.

    Do hotel or motel management services fall under this NAICS code?

    Yes, hotel and motel management services are included, except when the business operates the client's entire business.

    Can medical office management companies use NAICS 561110?

    Yes, managing offices of dentists, physicians, and other professionals are included under this code.


    NAICS Code 561110 is essential for businesses providing office administrative support that helps companies run smoothly. Understanding this code can aid business owners in proper classification and help contracting officers identify qualified service providers. Whether you’re evaluating eligibility for government contracts or just looking to better understand your industry classification, NAICS 561110 – Office Administrative Services is a key code to know.

    Optimize your business classification and leverage the opportunities within the Administrative Services sector today.