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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
$1.9M
Total Obligations (12mo)
32
Awarded Contracts (12mo)
9
Contractors Awarded (12mo)
1
Median Bidders per Award
-72.3%
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.

Small Business Size Standard

The SBA threshold that decides who can bid NAICS 561330 work as a small business.

$41.5M
Applies to the whole industry code

The SBA cap for this NAICS (13 CFR 121.201). A business at or under it can self-certify as small for work in this code, which is what makes it eligible for a small-business set-aside. The cap is set per NAICS, so the same company can be small in one code and not in another.

13 CFR 121.201, effective January 1, 2026. The SBA revises the table roughly once a year.

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. · 1,736 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

1,736

72% of 2,414 total awards

Bidder Count Distribution by Fiscal Year

Share of reported awards in each bidder-count bracket per federal fiscal year.

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%
1,73672% of 2,414
56133NAICS Industry
Usually Single-Bid173%
1,73672% of 2,414
5613Industry Group
Employment Services
Fewer Bidders246%
84,65980% of 106,029
561Subsector
Fewer Bidders248%
847,72079% of 1,066,351
56Sector
Administrative and Support and Waste Management and Remediation Services
Fewer Bidders245%
1,121,39177% of 1,461,546

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
Special Education Managed Services Provider (MSP)
Solicitation # 27-104
The Griffin-Spalding County School System (GSCS) is soliciting proposals for a Managed Service Provider (MSP) to deliver comprehensive special education staffing and employer-of-record services for approximately 10,000 students across 18 schools in Georgia. The selected contractor will be responsible for the full employment lifecycle, including recruiting, hiring, credentialing, compensating, and managing qualified personnel. The scope of work covers 16 standardized staffing categories, such as special education teachers, therapists, psychologists, and interpreters. The MSP must ensure continuity of IEP-related services and FAPE compliance, while adhering to strict performance standards, including same-business-day acknowledgment of urgent vacancies and a one-business-day turnaround for recruitment plans and missed service notifications. The contract term begins upon execution and continues through June 30, 2027, with potential renewal options. Award selection is based on a 100-point scale evaluating the best overall value, where pricing is assessed via fully loaded hourly bill rates for the specified roles. Proposers must demonstrate strict adherence to federal and state laws, including FERPA and the Georgia Security and Immigration Compliance Act via E-Verify. Proposals are due by 12:00 p.m. on October 30, 2026, and must include one original hard copy, seven duplicates, and one electronic copy. GSCS retains final approval authority over all assigned personnel and requires detailed service-delivery records to verify that scheduled minutes are delivered to students.
Griffin-spalding County School System

POSTED

9 days ago

DEADLINE

in 18 days
View Details
NAICS: 561330
SLED
Human Resources-Payroll-Benefits Brokerage Services
Solicitation # 320-15-2604
The Workforce Solutions Rural Capital Area (WSRCA) Board is soliciting proposals for a fixed-price contract to provide comprehensive, integrated, or modular Human Resources, Payroll, and Benefits Brokerage Services. The scope of work encompasses five primary areas: core human resources services and compliance, payroll administration, employee benefits brokerage for health and retirement, a performance management system, and a learning management system (LMS). The selected vendor will be responsible for the implementation, maintenance, and improvement of group benefit programs, ensuring optimal coverage and price value while identifying opportunities for plan or vendor consolidation. The initial contract term is set for one year, beginning approximately January 1, 2027, through December 31, 2027, with the possibility of up to four annual renewals for a total duration of five years, contingent upon performance and the availability of state and Texas Workforce Commission funding. Proposals will be evaluated based on a best-value decision using a 105-point scoring system, where a minimum score of 70 is required for consideration. Evaluation factors include demonstrated capability and qualifications (30 points), cost competitiveness (25 points), demonstrated experience with similar government or non-profit projects (15 points), ease of implementation (15 points), and integration and scalability (15 points), with bonus points available for Texas Vet/HUB certified entities. Interested organizations must submit two separate files via the Bonfire Portal by the deadline of October 16, 2026, at 11:00 PM: a single PDF containing the complete Proposal Submission Packet—including the executive summary, scope of work response, and various legal certifications—and a separate Excel budget file. Proposers must comply with all federal and state regulations, including FLSA, ADA, and EEOC, and must not be debarred from federal programs or delinquent in Texas franchise tax or unemployment insurance payments.
RURAL CAPITAL AREA WORKFORCE SOLUTIONS

POSTED

17 days ago

DEADLINE

in 5 days
View Details
NAICS: 561330
Closed
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

2 months ago

CLOSED

about 1 month ago
View Details

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