Paychex, Inc.

What does Paychex own?

The Paychex service platform, Paychex Flex SaaS, Paycor HCM (acquired April 2025), SurePayroll, Paychex PEO, and the Perks benefits marketplace.

Is Paychex publicly traded?

Yes. It trades on NASDAQ under ticker PAYX and is an S&P 500 component.

Who owns Paychex?

Public shareholders, with Vanguard, BlackRock, and State Street holding the largest institutional stakes. Founder Tom Golisano no longer holds a controlling position.

Where is Paychex headquartered?

Rochester, New York, USA, where it was founded and remains one of the city's largest employers.

How does Paychex make money?

Through payroll and HR service fees, SaaS subscriptions, PEO co-employment revenue, insurance commissions, and interest earned on client payroll funds.

How many clients does Paychex serve?

Approximately 800,000 businesses, concentrated in the 10-to-500-employee segment, paying roughly one in twelve U.S. private-sector workers.

Tom Golisano started the company in 1971 in Rochester with about $3,000, betting that small businesses needed payroll services as much as corporations did but had no one to sell to them. He was right: competitors served only large accounts, and Golisano's door-to-door model built a regional business he consolidated into a national structure in 1979.

The 1983 NASDAQ IPO funded decades of expansion beyond payroll into tax filing, 401(k) recordkeeping, workers' compensation administration, health insurance agency services, and time and attendance. By the 2000s Paychex was the established number two behind ADP, differentiated by its service-heavy small-business model.

The 2010s migrated the business to software. Paychex Flex launched in 2013 as a proprietary SaaS HCM platform, SurePayroll (acquired 2010) covered self-service customers, and the company layered on PEO services that co-employ workforces for smaller clients. Golisano's era ended with his 2004 CEO transition; a succession of internal leaders followed, with John Gibson taking the top job in October 2022.

The defining deal arrived in 2025: Paychex acquired Cincinnati-based Paycor HCM for approximately $4.1 billion, closed April 14, 2025. Paycor brought a modern mid-market SaaS platform and 30,000-plus clients, fixing Paychex's historic weakness of losing customers as they grew past SMB scale. Fiscal 2026, the first full year of integration, delivered 17 percent revenue growth to $6.51 billion, more than $100 million in cost synergies, and a reorganized go-to-market structure splitting SMB and enterprise segments.

Paychex publishes annual corporate responsibility reporting covering workforce practices, data security, and community investment, particularly in its Rochester base. As a services company its environmental footprint is limited to offices and data centers. It holds no B Corp or equivalent certification and is not rated in the top tier of ESG lists, though its governance record is clean and it maintains standard public-company disclosure on diversity and pay-equity metrics.

Paychex has avoided major scandals across five decades. Periodic ERISA class actions over 401(k) fee practices have settled for modest sums, routine litigation in the retirement-plan industry. A 2019 third-party data incident prompted customer notifications without regulatory penalty. The most scrutiny it receives is structural: employment-law exposure inherent in PEO co-employment relationships, and the ordinary compliance burden of handling payroll and tax data for 800,000 businesses.