Best PEO service of 2024

Professional Employee Organization (PEO) services allow you to outsource all of your Human Resources (HR) needs, by allowing the service to co-employee your employees. 

Best PEO service of 2024: quick menu

While there is HR software out there to help you manage employees, sometimes it's more cost-effective, at the very least from a time and administrative perspective, to simply outsource the whole darn thing.

This is not least because HR is not just about hiring and firing, wages and taxes, but also employee benefits, legal compliance, insurances, even staff training, and the general administrative headaches this can all amount to. 

For smaller businesses the idea of outsourcing HR to a PEO services company can be especially appealing, but even mid-sized and enterprise companies can find it to be an attractive business proposition, especially when you factor in not just salaries as upfront cost for HR staff, but also the premises for them to work in, plus additional legal fees in different states for compliance purposes.

We've therefore featured below the five best PEO service companies, and provided more information on their services, and what they can offer for your business.

Reader Offer:  3 months free

Reader Offer:  3 months free
Paychex PEO supports your entire employee life cycle, from attracting and retaining talent, to offering world-class benefits, streamlining payroll processing, and maintaining legislative compliance. Paychex PEO offers upfront pricing with no hidden fees.

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Reader Offer: Free quote

Reader Offer: Free quote
A comprehensive PEO solution that provides all aspects of outsourced HR while offering significant benefits and savings. ADP provides great value for larger companies with advanced features like payroll by direct deposit, a self-service employee platform, new hire onboarding and benefits administration.

Preferred partner (What does this mean?)


Reader Offer: $100 gift card
Rippling is ideally suited for small to medium-sized businesses that require a well-rounded HR solution along with payroll back up if they need it. Learn about their super user experience and great app integration today - and receive a $100 gift card

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The best PEO service of 2024 in full:

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Best overall

(Image credit: ADP)

1. ADP

The comprehensive PEO service

Reasons to buy

Suitable for larger firms
Nationwide service
Different packages offered

ADP offers a full-service PEO solution that aims to provide all aspects of outsourced HR while offering significant benefits and savings. ADP can cover most every issue of employment, from recruitment to HR and payroll, and provide guidance and technology to support their aims.

ADP also promises to be able to offer premium benefits, perks, and discounts normally available only to larger companies, not least when it comes to providing medical, dental, vision and 401(k) retirement plan benefits to employees. And because ADP is IRS-certified, your business should be able to avoid IRS double-taxation. 

Because your business would work with the co-employment model, ADP can provide business insights, as well as provide feedback on performance and career development options for employees. Aside from helping with employee retention, ADP can also advise on work safety issues and also provide liability defense as required.

Altogether, ADP offers a total PEO solution that aims to save businesses money by reducing their HR administration and management costs, while also adding key employee benefits that might not normally be available. The package is pretty comprehensive, and there are plenty of options to suit.

For prices you can contact ADP about you specific needs for a quote.

Best for clear pricing

(Image credit: Paychex)

2. Paychex

The PEO with clear price options

Reasons to buy

Data-driven insights
Broad range of features
Consultancy available too

Paychex PEO offers two levels of service, Paychex PEO and Paychex PEO+. The normal PEO service covers human resource management, benefits administration and insurance plans (including state unemployment insurance), as well as payroll administration and a Learning Management System (LMS).

The LMS aims to provide in-work training development for employees using an online platform which is mobile-friendly, in order to improve on employee retention. For the normal PEO service you can select courses from the Paychex training library, but with the PEO+ service you can upload your own training materials and courses to the platform.

Paychex PEO also offers upfront pricing with no hidden fees, and detailed invoicing to ensure that costs are clear. There's no contract term, so there are no penalties for cancelling the service at any time. The service is IRS certified, and accredited by the Employer Services Assurance Corporation (ESAC). The Paychex PEO+ service also includes an HR consultant service to provide guidance, as well as Employment Practices Liability Insurance (EPLI).

Best for mid-sized business

(Image credit: Engage PEO)

3. Engage PEO

The PEO for mid-sized businesses

Reasons to buy

For medium-sized businesses
Wide range of benefits administration
Good range of features
Certified by the IRS

Engage PEO is a PEO service for small and medium-sized businesses, offering a range of possibilities when it comes to HR services, payroll, compliance, and benefits, as well as covering worker compensation and risk management.

The HR services includes recruitment and training, time keeping records, performance management, as well as compliance and job description audits. It also covers payroll tasks including full processing, employee self-service, and of course tax deductions. For compliance it covers a full range of work and employment legislation, not least EPA, ADA, FMLA, ERISSA, FLSHA, and OSHA, as well as legal requirements by state. 

Engage can also provide a wide range of benefits and benefits administration services, not least relating to medical insurance, group vision and dental insurance, life and disability insurance, as well as fiduciary services for the direct management of employee 401(k) plans. 

Altogether, Engage PEO offers a good range of features and options for mid-sized businesses, and is certified by the IRS and accredited by ESAC.

For pricing you need to contact Engage PEO for a quote.

Best for expertise

(Image credit: TriNet)

4. TriNet

Outsourced industry expertise

Reasons to buy

Uses specialists for better insights
Per-employee payment

TriNet is another company that offers the range of PEO services, not least payroll, HR expertise, benefit options, and risk management. What TriNet does differently to other PEO companies, though, is that its guidance team is made from specialists to match your industry rather than general advisors.

This means that rather just outsourcing your HR, you're also getting expert advise specific to your business and market segment, which means TriNet can potentially provide more penetrating insights when it comes to all aspects of human resource services, from recruiting and onboarding, to benefits and compliance issues. 

Additionally, like other PEO services, TriNet can leverage premium benefits packages for your employees, but because of their experience can help shape these more specifically to your employee needs for staff retention. They also provide compliance on all issues of employment law, from ACA, COBRA, disability and state filings.

The TriNet PEO service also includes a technology platform for desktop or mobile that you and your employees can make use of. Managers can build their own dashboards, and employees can access their payment records as well as book their own vacations and make simple changes such as to marital status as required. 

As well as data and analytics being available, TriNet also provides an expenses management platform which can also integrate with Netsuite and Quickbooks.

As for pricing, you need to contact TriNet for a quote.

Best for small business

(Image credit: XcelHR)

5. XcelHR PEO

Making PEO available to small businesses

Reasons to buy

Specific focus on small business
Broad spectrum of PEO services
Good all-round PEO service

XcelHR PEO is just one of a number of outsourcing services the company provides, which includes general HR services as well as Administrative Service Organization (ASO). 

What makes XcelHR standout is that they are specifically focused on small business needs, and don't demand a minimum number of employees to use their services.

As expected, XcelHR covers a broad spectrum of PEO services, not least human resources management, payroll and tax administration, talent acquisition, benefits administration, retirement services, and risk management. 

Applied together they are intended to help make time savings, improve productivity, business compliance, control costs, and enhance business growth. In this regard, XcelHR offers a good all-round PEO service that most small businesses might otherwise struggle to access.

Pricing varies according to the number of employees to be covered, and this can either be a straight monthly cost, or a percentage of your payroll amount. To find out more contact XcelHR for a quote.

XcelHR is also a member of the National Association of Professional Employer Organizations (NAPEO) and the company has a CPEO certification on the IRS website listed under the name Alabama, Staff, Inc,  which is a PEO subsidiary of Xcel Holdings, LLC.

More PEO company options

While we've featured the companies we think are the best overall, different providers may offer services that are better suited to different companies. This is especially the case as the size of the company, and how established it is, will dictate your HR needs. Start-ups may need to build-in scalability from the start, while larger businesses may need flexibility to cope with employee churn. 

To help you make the right choice, we're therefore listed additional companies that may be worth your while to also check out:

Justworks offers payroll, benefits, HR, and compliance in a single platform to make it easier for you to manage employees. Justworks provides full service support and HR consulting as and when required on top. The company is also IRS Certified Professional Employer Organization.

InfinitiHR offers a scalable turnkey solution to cover your HR management, organization, and employment liabilities. The company provides a wide range of information and help for managing private business and government departments, as well as settling all claims and payments as required.

Abel HR provides a one-stop for human resources, payroll, taxes, insurances and benefits. The company aims to reduce your costs while maximizing benefit opportunities available to employees. AbelHR is also a Certified Professional Employer Organization.

Acadia HR offers a range of PEO, HRO, and payroll services for companies of all sizes. The company focuses on comprehensive payroll services, full HR delivery, employment policies and procedures, as well as new hire management. The intended result is to not just save you time but also retain your most valuable employees.

We've also featured the best recruitment platforms.


What are the advantages of PEO compared to traditional HR?

The advantage of a PEO is that they will cover every aspect of employee administration, not least as a co-employer means the PEO becomes the employer of record for tax purposes and responsible for all aspects of payroll. 

However, the business owner remains in control of the workforce, work culture, and has the final say in all hiring and firing decisions.

Additionally, PEO services can often leverage a benefits package that is more cost-effective and delivers more than your business could ordinarily offer on its own. 

The result is that you can offer more attractive benefits for employees while also allowing more time for you to be hands-on with your business, so you can focus on growing and expanding that rather than becoming bogged down by the paperwork from running of it.

How we test

Where possible, we sign up for every PEO service that we review. We look at how easy it is to get started and enter data to see what the program is like to use. Every key feature is put to the test and compared to what's offered in competing products.

We research a range of other factors, including data security, ongoing support, and pricing models, looking at free versions where available. If we can't physically test the best HR software, we base our verdict on information found on the company's site, peer reviews, and user testimonials.

Read how we test, rate, and review products on TechRadar.

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Brian Turner

Brian has over 30 years publishing experience as a writer and editor across a range of computing, technology, and marketing titles. He has been interviewed multiple times for the BBC and been a speaker at international conferences. His specialty on techradar is Software as a Service (SaaS) applications, covering everything from office suites to IT service tools. He is also a science fiction and fantasy author, published as Brian G Turner.