Get Live Quote 
BDO Ireland
Ireland BDO Ireland provides outsourced payroll services for businesses operating in Ireland and internationally, covering payroll processing, pensions, benefits and employment tax compliance.
TriNet
Locations
United States
Employees
5000+
Year founded
1988
Featured in expert reviews
Read review ›
The Top 13 Local Payroll Processing Providers in United States: Reviewed in 2026
About
TriNet is a professional employer organization (PEO) that handles human resources for small and midsize businesses in the United States. Its services cover payroll processing, employee benefits, and compliance support, delivered through a technology platform combined with access to HR professionals.
The company offers two main options. Its full-service PEO takes on day-to-day HR administration for businesses that want their HR fully handled, while HR Plus provides HR expertise and guidance for companies that already have HR in place but want additional support. TriNet also offers an assessment tool to help businesses identify which option fits their needs.
Alongside payroll, TriNet provides access to benefits plans intended to help smaller employers attract and retain staff, HR consulting on complex people issues, and help navigating federal, state, and local employment rules. TriNet reports that more than 22,000 businesses use its services and that it processed $70 billion in payroll across its PEO and HR Plus solutions in 2025. The company is headquartered in Dublin, California.
The company offers two main options. Its full-service PEO takes on day-to-day HR administration for businesses that want their HR fully handled, while HR Plus provides HR expertise and guidance for companies that already have HR in place but want additional support. TriNet also offers an assessment tool to help businesses identify which option fits their needs.
Alongside payroll, TriNet provides access to benefits plans intended to help smaller employers attract and retain staff, HR consulting on complex people issues, and help navigating federal, state, and local employment rules. TriNet reports that more than 22,000 businesses use its services and that it processed $70 billion in payroll across its PEO and HR Plus solutions in 2025. The company is headquartered in Dublin, California.
Professional Employer Organization (PEO) 40%
Payroll Processing 25%
Benefits Administration 20%
HR Compliance and Support 10%
HR Automation 5%
Technology 25%
Healthcare 20%
Professional Services 20%
Retail and Hospitality 20%
Manufacturing and Other 15%
We've Already Done the Research
Get pricing from TriNet and the top EORs in one comparison — free, no obligation.
Similar Providers
Ireland
Justworks
United States Justworks is an HR and payroll platform for small and mid-sized businesses, covering payroll, benefits, compliance, and international hiring.
FoxHire
United States U.S. Employer of Record managing payroll, benefits, onboarding, and compliance for W-2 workers nationwide.
Lightsource Global HR
United States US-focused HR solutions provider offering payroll, benefits, compliance, and employee hiring services for companies expanding into America.
via Trustpilot
A
Anonymous
Recent
“We are completing our second year with TriNet and remain highly satisfied. Top values are availability, accountability, and responsiveness of support.”
via Trustpilot
A
Anonymous
Recent
“Garbage organization. Just horrendous. They know it and they don't care. Completely incompetent. Messed up payroll so many times.”
via G2
A
Anonymous
Recent
“We are a small company and TriNet saves us time and money. Of all software I've used, TriNet has been the easiest implementation.”
via Capterra
P
Phil P.
Nov 11, 2021
“Overall we've had a good experience. The outsourced HR platform TriNet offers is the right decision for our small business.”
