Paychex is a human capital management company that provides integrated technology platforms and advisory services for payroll processing, HR management, benefits administration, retirement solutions, and insurance across the United States and parts of Europe. The company serves hundreds of thousands of clients ranging from small businesses to large enterprises through its suite of SaaS platforms, outsourced HR services, and ancillary offerings including 401(k) recordkeeping, insurance partnerships, and business financing. Paychex generates revenue through a diversified model where more than half derives from non-payroll solutions, leveraging both direct sales forces and indirect channels such as accountants, brokers, and financial institutions.