Automatic Data Processing is a provider of cloud-based human capital management (HCM) solutions. Co. classifies its operations into the following two reportable segments: Employer Services, which serves clients ranging from single-employee small businesses to large enterprises, providing a range of technology-based HCM solutions, including payroll services, human resources management, workforce management, compliance services, insurance services and retirement services; and Professional Employer Organization, which provides clients with employment administration outsourcing solutions through a relationship in which employees who work for a client are co-employed by Co. and the client.