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NAICS Code· 561330

NAICS 561330: Professional Employer Organizations

This industry comprises establishments primarily engaged in providing human resources and human resource management services to client businesses and households. Establishments in this industry operate in a co-employment relationship with client businesses or organizations and are specialized in performing a wide range of human resource and personnel management duties, such as payroll, payroll tax, benefits administration, workers' compensation, unemployment, and human resource administration. Professional employer organizations (PEOs) are responsible for payroll, including withholding and remitting employment-related taxes, for some or all of the employees of their clients, and also serve as the employer of those employees for benefits and related purposes. Cross-References. Establishments primarily engaged in--Show more

NAICS 561330 – Professional Employer Organizations encompasses the provision of co-employment services that enable federal agencies to outsource human resources functions, including payroll, benefits administration, workers’ compensation, compliance management, and risk mitigation. These organizations act as employer of record for agency staff, allowing federal entities to streamline workforce management while maintaining operational control.

15
Active Contracts
$2.0M
Total Obligations (12mo)
36
Awarded Contracts (12mo)
9
Contractors Awarded (12mo)
1
Median Bidders per Award
-76.9%
YoY Growth

Industry Spending Overview

Federal obligations, top contractors and agencies, and related industry codes for NAICS 561330.

AI Industry Description

NAICS 561330 – Professional Employer Organizations encompasses the provision of co-employment services that enable federal agencies to outsource human resources functions, including payroll, benefits administration, workers’ compensation, compliance management, and risk mitigation. These organizatio...

NAICS 561330 – Professional Employer Organizations encompasses the provision of co-employment services that enable federal agencies to outsource human resources functions, including payroll, benefits administration, workers’ compensation, compliance management, and risk mitigation. These organizations act as employer of record for agency staff, allowing federal entities to streamline workforce management while maintaining operational control. In the government contracting landscape, PEOs support mission-critical staffing needs by ensuring regulatory adherence to federal labor laws, reducing administrative burdens, and enhancing workforce scalability—particularly for agencies managing transient or geographically dispersed workforces. This NAICS code bridges the gap between personnel management and mission execution, serving as a strategic enabler for agencies seeking flexible, compliant, and cost-efficient staffing solutions. No contractor data is available for this NAICS code at this time. No agency data is available for this NAICS code at this time. The competitive landscape for Professional Employer Organizations in federal contracting remains fragmented, with a mix of large national providers and specialized small businesses offering tailored compliance and HR outsourcing solutions. Demand is driven by agencies seeking to reduce overhead in personnel administration, particularly in departments with high turnover, remote workforces, or complex benefit structures. Opportunities exist for contractors with deep expertise in federal employment regulations, including FLSA, FMLA, and EEOC compliance, as well as those capable of integrating with federal HRIS platforms. Growing emphasis on workforce resilience and remote workforce management is increasing the strategic value of PEO services across the federal enterprise.

Top Contractors

Companies with the highest total award value under NAICS 561330, ranked by dollars won.

Top Agencies

Federal agencies directing the most contract spending toward NAICS 561330.

Competition

How many companies historically bid on federal awards in NAICS 561330, from bidder counts reported on USAspending.

Usually Single-Bid

Half or more of reported awards drew exactly one bidder, usually a sign of incumbent-held work rather than an open field. · 1,735 reported awards

Median Bidders

1

Per reported award, all-time

Single-Bid Awards

73%

Share of reported awards with one bidder

10+ Bidder Awards

3%

Share of reported awards with 10+ bidders

Reported Awards

0

72% of 2,413 total awards

How this code compares up the NAICS hierarchy. Parent cohorts pool every code under their prefix, so they are the steadier baseline when a 6-digit sample is thin.

Industry FamilyCompetitionMedian BiddersSingle-BidBidder MixReported Awards
561330This Code
Professional Employer Organizations
Usually Single-Bid173%
1,73572% of 2,413
56133NAICS Industry
Usually Single-Bid173%
1,73572% of 2,413
5613Industry Group
Employment Services
Fewer Bidders246%
84,58080% of 105,913
561Subsector
Fewer Bidders248%
846,91580% of 1,064,681
56Sector
Administrative and Support and Waste Management and Remediation Services
Fewer Bidders245%
1,120,35477% of 1,459,586

Bidder counts reported on past federal awards in this NAICS (USAspending). An open opportunity has no bidders yet, so this is the historical norm for similar work, not a fact about this solicitation. Not all awards report bidder counts, and fewer bidders often means incumbent-held work rather than an easier win. Federal reporting of bidder counts fell from ~96% of awards (FY2016) to ~30% (FY2018 onward); the chart shows shares of reported awards, and washed-out stretches mark years with fewer than 30 of them.

Related NAICS Codes

Industries similar to Professional Employer Organizations, by shared sector, subsector, and industry group.

Explore contracts across multiple NAICS codes Browse all NAICS Codes

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NAICS 561330 FAQ

Frequently Asked Questions

NAICS code 561330 covers Professional Employer Organizations. This industry comprises establishments primarily engaged in providing human resources and human resource management services to client businesses and households. Establishments in this industry operate in a co-employment relationship with client businesses or organizations and are specialized in performing a wide range of human resource and personnel management duties, such as payroll, payroll tax, benefits administration, workers' compensation, unemployment, and human resource administration. Professional employer organizations (PEOs) are responsible for payroll, including withholding and remitting employment-related taxes, for some or all of the employees of their clients, and also serve as the employer of those employees for benefits and related purposes. Cross-References. Establishments primarily engaged in--

Recently Posted in Professional Employer Organizations

NAICS: 561330
SLED
E-Verify and Subcontractor Compliance ManagementThe contract requires the administration of E-Verify for all personnel to ensure compliance with federal immigration verification requirements. This includes verifying the employment eligibility of every individual hired under the contract through the E-Verify system, maintaining accurate and up-to-date records, and ensuring all verifications are completed within mandated timeframes. In addition to direct personnel, the contractor must manage compliance among all subcontractors by collecting and retaining signed affidavits confirming their own adherence to E-Verify requirements, as well as maintaining complete documentation for audit and inspection purposes. The contractor is responsible for establishing and sustaining a robust recordkeeping system that meets federal standards, ensuring that all affidavits, verification results, and compliance documentation are stored securely and can be produced promptly upon request. The work must be performed in alignment with the North American Industry Classification System code 561330, which pertains to employment placement agencies, and is associated with the Public Utilities agency in Florida. The solicitation, posted on July 31, 2026, requires proposals to be submitted by September 1, 2026, and the contract is classified as a subcontract under a federal compliance framework focused on immigration enforcement through employment verification.
Public Utilities

POSTED

27 days ago

DEADLINE

in 5 days
View Details
NAICS: 561330
SLED
Subcontractor Compliance and Vetting ServicesThe contract titled Subcontractor Compliance and Vetting Services requires the provision of comprehensive background checks, licensure verification, and ongoing compliance monitoring for personnel employed by subcontractors working in healthcare contract environments. This effort ensures that all individuals fulfilling roles under these contracts meet stringent regulatory, professional, and safety standards necessary for secure and lawful operations within the healthcare sector. The work involves continuous verification of credentials, screening for disqualifying criminal or ethical histories, and tracking changes in licensure status to maintain adherence to state and federal requirements. The solicitation is open for responses until September 1, 2026, and is categorized under NAICS code 561330, indicating a focus on investigative and security services. The contract is tied to the state of Kentucky, with performance intended to support healthcare operations under state oversight, though the specific location of performance is broadly designated as Other. There is no set-aside designation specified, and all eligible contractors may respond. Bidders must be prepared to operate under strict compliance protocols, with systems in place to deliver timely, accurate, and auditable records to support state agency requirements for workforce integrity and patient safety. The official portal for submission and further details is accessible via the provided online link.
Frankfort, KY

POSTED

30 days ago

DEADLINE

in 5 days
View Details
NAICS: 561330
Grant
Local Staff Recruitment and ManagementThe contract entails the recruitment, onboarding, and ongoing management of local Indonesian personnel to support program implementation across five designated locations, with a focus on hiring trainers and IT support staff essential for operational success. The subcontractor will be responsible for ensuring that all local hires are properly integrated into program activities, meet required qualifications, and provide consistent, high-quality support in alignment with program goals. This includes coordinating with local stakeholders, adhering to labor and employment regulations in Indonesia, and maintaining effective communication channels to address staffing needs as they arise. Issued by the U.S. Mission to Indonesia under the Department of State, this subcontract is classified under NAICS code 561330, which pertains to employment placement services. The opportunity was posted on July 23, 2026, with a response deadline of August 30, 2026, providing potential bidders a six-week window to submit proposals. While the exact geographic locations within Indonesia are not specified, performance is expected to span multiple sites, requiring a scalable and adaptable approach to staffing and supervision. The subcontractor must demonstrate proven experience in managing local teams in Indonesia, understanding cultural and logistical nuances, and delivering reliable support under U.S. government program guidelines.
U.S. Mission To Indonesia

POSTED

about 1 month ago

DEADLINE

in 2 days
View Details
NAICS: 561330
Closed
SLED
Healthcare Staffing Agency – Nurse Placement and ManagementThe contract seeks a healthcare staffing agency to provide comprehensive full-cycle staffing services for registered nurses and licensed practical nurses assigned to support medically fragile students in school settings across Utah. Services must encompass all aspects of workforce management including recruitment, credentialing, scheduling, payroll processing, and ongoing compliance oversight to ensure regulatory and educational standards are consistently met. The agency is expected to maintain robust systems for verifying nurse qualifications, managing immunizations and background checks, aligning schedules with school calendars and student care needs, and ensuring adherence to state and federal healthcare and education regulations. The subcontract is classified under NAICS code 561330 for employment placement services and is open for bidding with a submission deadline of July 29, 2026. The opportunity is managed by the state of Utah with no set-asides or specific size restrictions indicated. Performance is expected to occur throughout Utah’s school districts where medically fragile students require skilled nursing support during the school day. The agency must demonstrate proven experience in school-based healthcare staffing, a deep understanding of the unique challenges of pediatric medical care in educational environments, and the capacity to deliver reliable, timely, and compliant nursing services without disruption to student care.
Utah

POSTED

about 1 month ago

CLOSED

29 days ago
View Details

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