ADP vs SPGI Comparison

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.

S&P Global provides data and benchmarks to capital and commodity market participants. Its ratings business is the largest credit rating agency in the world and S&P's largest segment by profitability. S&P's largest segment by revenue is market intelligence, which provides desktop, data and advisory solutions, enterprise solutions, and credit/risk solutions mostly in the financial-services industry. S&P's other segments include energy (formerly commodity insights, this segment includes Platts and other data) and indexes. S&P spun off Mobility Global (Carfax and other auto data) on July 1, 2026.