PAYX vs FIS Comparison

Paychex is a technology company providing human capital management solutions, enabling clients to better implement payroll, talent, time, tax, and benefits administration. It has a diverse set of product offerings addressing client needs. Aside from its traditional cloud-based payroll and HCM software offering, which accounts for close to half of total revenue, the company provides outsourcing options. Paychex's administrative service organization and professional employer organization accounts generate over 40% of sales. The balance of revenue is generated through retirement services, insurance solutions, and other products. In fiscal 2025, the company had 800,000 clients and almost 2.5 million worksite employees across its ASO and PEO.

Fidelity National Information Services provides core processing and ancillary services to banks, but its business has expanded over time. By acquiring SunGard in 2015, the company now provides record-keeping and other services to investment firms. With the acquisition of Worldpay in 2019, FIS was providing payment processing services for merchants and holding leading positions in the United States and United Kingdom. But the company sold off a majority interest in Worldpay and now has only a minority stake.