Paychex, Inc. engages in the provision of human capital management solutions for payroll, human resources, insurance and retirement for small and medium-sized businesses. The company is headquartered in Rochester, New York and currently employs 16,500 full-time employees. The firm offers a portfolio of HCM technology and HR advisory solutions that help its clients navigate the challenges of HR. Its clients have the option of doing payroll online using its software as a service (SaaS) technology, outsourcing to its payroll specialists, or using a combination of those solutions. Payroll is integrated with HCM software modules for clients who have more complex HR needs. The company also provides comprehensive HR outsourcing through its administrative services organization and PEO solutions. The firm's HCM SaaS platform is Paychex Flex, which provides workforce management throughout the employee life cycle from recruiting and hiring to retirement, including recruiting, onboarding, HR, time and attendance and employee benefits.