Automatic Data Processing 

ADP is a global, cloud-based human capital management provider offering payroll, compliance, talent management, benefits administration, and retirement services. The firm also provides human resources outsourcing services, including PEO offerings, enabling clients to reduce HR overhead. Its broad suite serves customers of all sizes across diverse sectors, and the firm holds large shares in its core markets. As of fiscal 2026, ADP counts over 1.1 million clients and manages payroll for more than 42 million workers across 140 countries.