What is a PEO?

A professional employer organization (PEO) is a third-party HR partner that shares employer responsibilities through a co-employment arrangement, helping businesses manage payroll, benefits, compliance, and other HR functions while maintaining control over employees and day-to-day operations. By pooling employees across multiple clients, PEOs can often provide access to better benefits, HR expertise, and compliance support than many small businesses can secure on their own. After evaluating the market, these are my top picks for the best PEO services:

ProvidersBest forStarting monthly price
JustworksOverall PEO service$79/employee
ADP TotalSourceMidsized businesses with complex HR needsCall for a quote
Paychex PEOCustomizable servicesCall for a quote
TriNet PEOIndustry-specific HR supportCall for a quote
Remote PEOCompanies with global expansion plans$99/employee
Rippling PEOHR automationCall for a quote
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  • April 30, 2026: Robie Ann Ferrer used a new rubric to evaluate 10 PEOs across seven categories, focusing on risk and compliance features, HR and payroll services, benefits administration, and value for money. As a result, Justworks replaced ADP TotalSource as the best PEO service. Remote PEO and TriNet PEO were added to the list, while Insperity didn’t make the cut. Robie also rewrote most of the article and updated product information, pricing, and key functionalities.
  • Sep. 3, 2025: Updated all mentions from Rippling Unity to Rippling Platform to reflect its rebranding.

To evaluate the best PEO services, I used a 50-point rubric to review and compare 10 options:

  • Justworks
  • Rippling PEO
  • XcelHR
  • Paychex PEO
  • TriNet PEO
  • Insperity
  • ADP TotalSource
  • Remote PEO
  • Deel PEO
  • CoAdvantage

I looked for key PEO services that help businesses manage payroll, benefits administration, HR processes, and compliance. In addition to checking online user reviews, I considered pricing transparency, support options, HR advisory services, accreditations, platform usability, and employee self-service tools.

I also added my expert rating to each criterion, where I considered the effectiveness of that area or feature. Then, I narrowed down the list to my top six recommendations.

Below is a breakdown of the evaluation criteria.

Risk & compliance (17%)

In this criterion, I looked at how well the PEO reduces employment-related risk and demonstrates credibility as a co-employment partner. Providers with verified industry accreditations, legal support access, risk guidance, and clear evidence of sound compliance practices received higher scores.

Payroll services (17%)

A strong PEO should take payroll work and payroll tax risk off the employer’s plate. In this criterion, I looked for pay processing coverage, multi-state support, automated filings, flexible payment options, and year-end reporting.

HR services (16%)

This measures the depth of hands-on HR guidance included in the service. Here, I checked if the PEO provided help with compliance guidance, policies, employee relations, investigations, onboarding, offboarding, and workplace safety support.

Benefits administration services (15%)

In this criterion, I looked at the provider’s ability to offer and administer employee benefits with minimal employer lift. I gave higher scores to PEOs with competitive plan options, strong employee support, and reliable handling of COBRA, ACA, leave, workers’ comp, and unemployment claims.

Pricing (10%)

This category measures how predictable and fair the provider’s pricing is. Higher scores went to PEOs with transparent pricing, flexible contract expectations, clear billing structures, and stated discount opportunities.

Platform/interface (10%)

The platform should make the PEO relationship easier to manage, not add another layer of admin work. Higher scores went to providers with intuitive dashboards, self-service tools, mobile access, reporting, workflows, integrations, permissions, and security controls.

Customer support (10%)

This measures how accessible and useful the provider’s customer support is across common service needs. Here, I prioritized providers with broad support availability, dedicated service contacts, multiple communication channels, and helpful self-service resources.

I used a scoring rubric to evaluate popular PEO options and narrow the list down to my top recommendations. Each PEO provider was scored across 50 data points to ensure consistent comparison.

My choices for the best PEO services are based on more than eight years of experience writing about and reviewing HR systems, including global payroll solutions and HR services like PEOs. I also have 10 years of expertise in handling different facets of human resources, including managing HR software. These allowed me to provide insights to help business owners determine which HR system or service best fits their needs.

Best PEO services compared

ProviderESAC & IRS certification*Compliance supportBreadth of HR services**My score (out of 5)
JustworksYesStrongBroad4.09
ADP TotalSourceYesExcellentExtensive3.59
Paychex PEOYesExcellentExtensive3.55
TriNet PEOYesExcellentExtensive3.55
Remote PEONoGoodModerate3.51
Rippling PEONoGoodBroad3.50

*ESAC accreditation and IRS CPEO certification show that a PEO has met certain financial, operational, and tax-related standards. They’re widely recognized credibility markers in the PEO industry, but a provider without them may still be a good option if it offers strong compliance support, clear terms, and the right services for your business.**This refers to how much support each provider offers across core PEO functions, including payroll, benefits administration, workers’ compensation, HR guidance, compliance, risk management, reporting, and employee self-service tools.

Justworks logo

Justworks: Best overall PEO service

Overall Reviewer Score

4.09/5

Risk & compliance:

3.20/5

HR services

3.10/5

Payroll services

4.38/5

Benefits admin services

4.63/5

Pricing

4.56/5

Platform/interface

4.63/5

Customer support

4.63/5

Pros

  • Transparent PEO pricing
  • ESAC and IRS certified
  • Clean, intuitive platform with minimal learning curve
  • 24/7 customer support via phone, email, chat, Slack, and SMS
  • Strong fit for small businesses new to PEO services

Cons

  • Less automation-focused than Rippling
  • Health plans and wellness perks included in higher tier
  • Limited HR functions compared to most of the PEOs in this guide
  • May not be the best fit for larger companies with complex HR support needs

Why I chose Justworks

With transparent pricing, simple software, and 24/7 support, Justworks is an excellent option if you need reliable PEO services without the heavier setup of larger providers. If your team has straightforward HR needs, Justworks can help you control costs, keep up with employment requirements, and offer employees benefits that may be harder to access on your own.

Its platform brings payroll, HR tools, benefits administration, compliance resources, analytics, integrations, and HR consulting into one place. That matters for small to midsized businesses (SMBs) that need more structure but do not want an enterprise-style HR software.

However, Justworks does not offer the same level of advanced analytics, customization, or deep compliance infrastructure as some competitors in this guide. ADP TotalSource is stronger for complex HR support, while Rippling PEO is the better fit if you want more workflow automation and HR tech flexibility.

Justworks is one of the two PEO services in this guide that publishes its pricing online. That makes it easier for you to compare costs and features before entering a sales process. Its transparency also signals predictable per-employee pricing as your team grows, which matters when budgeting for headcount at the early stages of building a business.

Large-group benefits access with wellness perks

Signing up for the Justworks PEO Plus plan adds medical, dental, and vision administration alongside COBRA administration and HSA/FSA accounts. Mental health services are also available through providers like Talkspace, including fertility benefits via Kindbody. 

This benefits depth is comparable to what you’d see from ADP TotalSource, but Justworks makes it available at a smaller employee threshold. For companies competing for talent against better-resourced employers, this levels the playing field in a concrete, measurable way.

For PEO, Justworks has two plans: 

  • PEO Basic: $79 per employee, per month (PEPM)
  • PEO Plus: $109 PEPM

Several add-on products are available if you want to enhance the functionality of the PEO plans.

  • Time tracking: $8 PEPM
  • Dedicated HR consulting: $30 PEPM
  • US-based contractors: $8/paid contractor monthly
  • International contractors: $39/paid contractor monthly; this lets you pay workers in over 60 countries
  • Employer of Record: $599 PEPM; tools for hiring and paying global full-time employees

In addition to PEO, Justworks has a payroll-only product that costs $8 PEPM plus a $50 monthly base fee.

ADP workforce now logo.

ADP TotalSource: Best for midsized businesses with complex HR needs

Overall Reviewer Score

3.59/5

Risk & compliance:

3.80/5

HR services

4.19/5

Payroll services

4.63/5

Benefits admin services

4.38/5

Pricing

0.44/5

Platform/interface

4.33/5

Customer support

3.38/5

Pros

  • ESAC and IRS certified
  • Huge library of products and services.
  • 24/7 injury triage for treating workplace injuries appropriately and effectively.
  • ACA and COBRA administration included.

Cons

  • Non-transparent pricing.
  • Time tracking, scheduling, and recruitment services are add-on features.
  • Users report slow or unhelpful customer service.
  • May be too feature-rich for businesses with fewer than 50 employees.

Why I chose ADP TotalSource

ADP TotalSource is a strong fit for businesses whose HR needs have moved beyond basic administration. This is the PEO I’d look at when a company is dealing with more formal policies, multi-state hiring, employee relations issues, leave questions, workers’ comp claims, or compliance work that needs more than a help article and a payroll tool.

I like that it provides access to a broad support bench instead of relying on one general service contact. With ADP TotalSource, you can get a strategic HR expert, payroll specialist, benefits team, workplace safety consultants, workers’ compensation claims specialist, and ADP MyLife Advisors for employee support. That setup is useful when HR questions start crossing into different areas at the same time.

Compared with Justworks and Remote, ADP TotalSource is less transparent on pricing and may feel heavier for a small team. Its automation and workflows also aren’t as extensive as Rippling’s.

Risk-focused HR tools

ADP gives businesses more guardrails around the HR situations that can get expensive when handled informally, such as workplace safety, unemployment claims, workers’ compensation, and policy management. 

This is where ADP TotalSource feels different from lighter PEO services. It is not just helping you process routine HR tasks; it is helping you build a more controlled process around issues that can create compliance, financial, or employee-relations risk.

Full-scale, flexible payroll

ADP started in payroll, so its offerings are particularly robust in this area. TotalSource includes many competitive capabilities, like earned wage access capabilities, quick processing times, and flexible payroll schedules. If your employees prefer receiving paper checks, ADP also includes checking printing, signing, and stuffing services in its base PEO plan.

ADP TotalSource does not disclose its pricing details upfront, so you will need to contact ADP directly to get a cost estimate that’s tailored to your business’s needs.

Paychex PEO: Best for customizable services

Overall Reviewer Score

3.55/5

Risk & compliance:

2.85/5

HR services

3.85/5

Payroll services

4.63/5

Benefits admin services

4.63/5

Pricing

0.94/5

Platform/interface

4.08/5

Customer support

4.25/5

Pros

  • Assigned a dedicated HR professional
  • ESAC and IRS certified
  • Strong support for payroll, tax administration, benefits, HR & compliance
  • Business insurance options include general liability, umbrella, cyber liability, and commercial liability

Cons

  • Pricing isn’t transparent
  • Customer support quality varies by representative
  • Paychex Flex interface feels dated compared to newer platforms

Why I chose Paychex PEO

What sets Paychex apart from most PEOs on this list is its flexibility. The provider can tailor its services around your company’s specific needs, making it a strong option if you want help filling functional HR gaps instead of adopting a rigid, one-size-fits-all package. This can be especially useful if you’ve already established an HR department but want to switch internal focus to strategic initiatives, like improving retention or workforce planning.

Paychex is also a good fit if you want a more hands-on, relationship-based PEO service. Its model gives employers access to dedicated contacts across HR, payroll, and safety, which can be helpful when you need practical guidance from people who understand your business setup.

However, Paychex PEO is less transparent on pricing than Justworks and Remote, so it may not be the easiest option to compare if you’re still building your shortlist. It also does not offer the same level of enterprise-grade compliance infrastructure as ADP TotalSource or the same automation depth as Rippling PEO.

Customized safety programs

Paychex PEO creates a tailored safety program to fit your business’ industry and training needs. Uniquely, Paychex assigns safety experts to review your company’s workplace to understand the challenges you face daily. These experts customize safety manuals for your needs, provide you access to training courses in more than 70 topics, and update you on important safety compliance changes.

If you are in a high-risk industry like construction, manufacturing, or roofing, this level of support can be essential for keeping workplace injuries low and preventing any OSHA investigations for unsafe practices.

Benefits and liability administration

Paychex’s benefits administration is highly customizable, including the following:

  • Standard PPO and HMO coverage for health, dental, and vision
  • Health savings accounts (HSAs), flexible savings accounts (FSAs), and health reimbursement arrangements (HRAs)
  • Section 125 cafeteria plans
  • Retirement benefits
  • COBRA administration

Paychex clients also benefit from access to various business insurance coverage options. For project-based companies, this can make it significantly easier to produce certificates of insurance that prove your coverage levels when partnering with contractors or subcontractors.

Paychex PEO does not publicly disclose its pricing, so you will have to contact Paychex directly for a customized quote.

TriNet logo.

TriNet PEO: Best for industry-specific HR support

Overall Reviewer Score

3.55/5

Risk & compliance:

2.70/5

HR services

3.55/5

Payroll services

4.63/5

Benefits admin services

4.63/5

Pricing

1.94/5

Platform/interface

3.63/5

Customer support

3.88/5

Pros

  • ESAC and IRS certified
  • Fees go down when certain thresholds are reached
  • Built-in risk management with access to onsite safety assessments
  • Full-suite payroll, benefits, HR, and compliance tools

Cons

  • Pricing isn’t transparent
  • Third-party integrations are limited compared to Rippling
  • May be more complex for companies with simple HR needs

Why I chose TriNet PEO

A business in life sciences, financial services, manufacturing, or nonprofits does not always need the same HR advice as a retail shop or marketing agency. TriNet’s industry-specific approach can help employers get support that better fits the realities of their workforce, compliance exposure, benefits expectations, and growth plans.

That makes TriNet a good option if you want PEO services that feel more consultative than generic. It can be especially useful when HR decisions depend on the way your industry operates, such as managing specialized talent, competing on benefits, handling risk-heavy work environments, or navigating sector-specific workforce expectations.

TriNet is not the strongest choice if your main priorities are upfront pricing clarity, simple setup, or deep workflow automation. Justworks is easier to evaluate because it publishes pricing, and Rippling PEO offers more workflow and automation tools for teams that want a software-first experience.

Industry-specific support teams

TriNet is one of the only PEOs on this list that organizes its support model around your industry rather than your account size. 

When you sign on with TriNet, your support team includes HR, payroll, and benefits specialists who have worked specifically within your sector, whether that’s financial services, technology, or nonprofit. This means faster, more accurate guidance on questions like how to classify a part-time researcher for benefits eligibility or how to structure equity compensation in a pre-IPO tech company.

HR platform with centralized data

TriNet’s platform gives administrators and employees access to payroll, benefits, HR documents, expense management, and compliance data from one dashboard. It’s notable for being easy to use and navigate through, with an interface that employees can manage on their own without a lot of HR hand-holding.

TriNet does not publish fixed PEO pricing. Its pricing page says costs depend on factors such as the size of your business and the services needed.

Remote reviews

Remote PEO: Best for companies with global expansion plans

Overall Reviewer Score

3.51/5

Risk & compliance:

1.85/5

HR services

3.49/5

Payroll services

3.75/5

Benefits admin services

3.75/5

Pricing

4.56/5

Platform/interface

3.75/5

Customer support

3.75/5

Pros

  • Provides dedicated HR and compliance experts
  • Strong intellectual property (IP) protection tools
  • US PEO service available alongside global EOR in one unified platform
  • Transparent, flat-rate pricing

Cons

  • PEO isn’t ESAC-accredited or IRS-certified
  • Limited advanced HRIS features compared to Rippling & ADP
  • Slightly more expensive than Justworks

Why I chose Remote PEO

Remote PEO is optimal for companies that plan to hire abroad after building their domestic team. You can use its PEO to manage U.S. employees, then transition to Remote’s EOR service if you need to employ workers in countries where you do not have a legal entity.

That setup is useful for companies moving from U.S.-only hiring to a mixed workforce of U.S. employees and globally distributed teams. Instead of adding separate vendors as your workforce expands, Remote gives you one platform for several employment models.

However, Remote PEO is newer than traditional PEO services like ADP TotalSource, Paychex PEO, and TriNet PEO. It is also less useful if you only need a straightforward U.S. PEO, where Justworks may be easier to evaluate and implement.

Transparent flat-rate pricing with no setup or exit fees

Remote publishes its pricing for PEO, EOR, and contractor management services directly on its website. That puts it alongside Justworks as one of the only providers in this guide that doesn’t require a sales call just to understand what you’ll pay. I also like that Remote doesn’t have onboarding/offboarding fees, minimum contract terms, or upfront deposits.

Built-in IP protection

Remote’s IP Guard is a standard feature of its employment contracts, not an add-on. It includes clear ownership documentation and legal safeguards across all countries where Remote operates, ensuring that intellectual property developed by employees is properly assigned to your company under local law. 

For tech companies, professional services firms, or any business where employee-created IP is central to the product, this is a meaningful protection that many HR platforms either don’t address or charge extra for.

Unlike Justworks, Remote only has one plan for its PEO product. Pricing starts at $99 PEPM and comes with all the essential tools you need to hire, pay, and manage employees, including dedicated HR and compliance support, as well as guided onboarding for new hires.

If you decide to expand globally, Remote offers several modules to help you legally and compliantly recruit and pay workers.

  • Employer of Record: Starts at $699 PEPM
  • Global Payroll: $29 PEPM
  • Contractor Management: $29/contractor monthly
  • Contractor Management Plus: $99/contractor monthly
  • Contractor of Record: Starts at $325/contractor monthly

HR solutions are also available for managing employee information, performance reviews, recruiting, and surveys. Visit the Remote website to check pricing details.

Also read: PEO vs. EOR: What’s the Difference?

Rippling Logo

Rippling PEO: Best for HR automation

Overall Reviewer Score

3.50/5

Risk & compliance:

2.20/5

HR services

3.99/5

Payroll services

4.38/5

Benefits admin services

4.63/5

Pricing

1.94/5

Platform/interface

4.63/5

Customer support

3.00/5

Pros

  • PEO turn-off feature with no loss of HR software functionality
  • In-software compliance support to detect potential labor law violations
  • Basic IT and finance tools available
  • Robust custom reporting and analytics
  • Supports over 600 integrations

Cons

  • Non-transparent pricing
  • PEO isn’t ESAC-accredited or IRS-certified
  • Lacks direct phone support

Why I chose Rippling PEO

If you want PEO services tied to a stronger HR tech stack, consider Rippling PEO. It handles the expected PEO work, such as benefits, HR support, compliance, and payroll-related administration, but its bigger value is how much of that work can connect to workflows, reporting, permissions, policies, and integrations.

Rippling’s automation depth is also one of its competitive advantages over other PEOs on this list. For example, you can use Rippling to automate parts of onboarding, benefits enrollment, compliance training, employee data updates, and app access, which is harder to do in a traditional PEO setup that is more service-led than software-led. 

However, Rippling is not the best choice if you want the simplest PEO to adopt or the most hands-on traditional HR support. If you’re looking for an established PEO service to handle complex HR processes, go for ADP TotalSource.

Customizable workflows

Its Workflow Studio lets you build custom HR automation rules without needing IT support, such as automatically triggering an onboarding checklist when a new hire is added or revoking software access when a termination is processed. No other PEO on this list comes close to this level of workflow flexibility.

Unified HR, IT, and finance solutions

Rippling is the only PEO on this list where HR, payroll, IT device management, app access provisioning, and expense management tools share a single employee data record. That architecture means changes flow automatically across systems. 

When you hire someone, Rippling can simultaneously enroll them in payroll, assign their laptop, grant access to Slack, Google Workspace, and your HRIS, and trigger their benefits enrollment — from a single onboarding workflow. When someone leaves, the same automation reverts all of that in one step. 

For comparison, every other PEO on this list handles HR and payroll, but IT management and app provisioning live in separate systems that don’t talk to each other. For companies spending several hours each week managing these handoffs manually, Rippling eliminates a lot of the administrative work that other PEOs simply don’t address.

Like most of the PEOs on my list, you have to contact the provider to discuss your HR needs and request a quote.

How to choose the best PEO service

Start by identifying what you need the PEO to take off your plate. A small business that wants help with payroll, benefits, and basic HR administration may not need the same provider as a company dealing with multi-state hiring, employee relations issues, leave questions, or workplace risk.

When comparing PEO services, focus on how each provider fits your actual HR needs:

  • Core HR support: Check whether the PEO can help with policies, handbooks, onboarding, offboarding, employee questions, and HR guidance.
  • Payroll and tax administration: Look at whether the provider supports multi-state payroll, payroll tax filings, garnishments, year-end forms, and payroll-related compliance.
  • Benefits administration: Compare health benefits, retirement plans, COBRA support, ACA support, open enrollment tools, and employee benefits assistance.
  • Compliance and risk support: Ask how the provider helps with workers’ compensation, unemployment claims, workplace safety, employment law updates, and HR compliance.
  • Service model: Find out whether you get a dedicated HR contact, access to specialists, employee-facing support, or mostly self-service tools.
  • Pricing and contracts: Review what is included, what costs extra, whether pricing is per employee or based on payroll, and how easy it is to leave the agreement.
  • Future fit: Consider whether the provider can support where your business is headed, such as new states, more formal HR processes, automation, or international hiring.

When a PEO may not be the right fit

A PEO can be helpful if payroll, benefits, compliance, and HR tasks are becoming too much to manage in-house. However, not every business needs that level of support.

It may be too much if you only need help running payroll, are not ready to offer broader employee benefits, or want full control over benefits and workplace policies. In these situations, payroll software, an HR consultant, a benefits broker, or another HR outsourcing service can often solve specific problems without adding a co-employment arrangement.

If you’re having trouble deciding, answer this simple question: Will the PEO provider remove enough HR work, risk, or cost to justify the added structure and fees?

Find your new PEO service provider

Frequently asked questions (FAQs)

PEO implementation time varies by provider, company size, payroll setup, benefits choices, and the number of states where you employ workers. Expect the setup to take longer if you have complex benefits, multi-state payroll, workers’ compensation requirements, or historical payroll data to transfer.

A certified PEO (CPEO) is a designation PEOs receive from the IRS after passing several financial, background, and reporting requirements. Examples of these requirements include financial statement audits, federal employment tax liability certification, and background checks on individuals making tax payments.

Because CPEOs must demonstrate their ability to cover federal employment taxes to the IRS, they may be a safer alternative to non-certified PEOs. For example, if a non-certified PEO fails to file taxes on time, their clients may be liable for late penalties and interest, not the PEO.

Usually, yes, but it depends on your contract. Many PEOs require advance notice, and some may include transition terms, fees, or timing restrictions. 

The bigger issue is payroll tax continuity. If you leave a non-certified PEO mid-year, wage bases may need to restart with the next provider. With a CPEO, federal rules allow successor employer treatment when entering or leaving the relationship, which can help avoid wage base reset issues for certain federal employment taxes.

Before signing up for a PEO service, ask how cancellation works, what notice is required, and what happens to payroll, benefits, workers’ compensation, and employee records after the transition.

No. This is one of the most common misconceptions about the co-employment model. You still control who you hire, what you pay employees, how you manage performance, and what your company culture looks like.

The PEO handles the administrative side, such as payroll, tax filings, benefits administration, workers’ compensation, and compliance support. It does not manage your employees’ daily work or make business decisions for your team. 

Here’s a simple way to think about it: the PEO supports the HR back office, but you still run the company.