IQV vs PAYX Comparison

Iqvia is a global leader in clinical research and technology solutions for the life science industry. Formed in 2016 from the merger of Quintiles and IMS Health, it combined clinical trial services with extensive healthcare data and analytics. Its research and development solutions segment provides outsourced clinical development services spanning drug discovery, trial design, patient recruitment, site management, clinical testing, real-world studies, and the regulatory approval process. Its commercial solutions segment helps companies optimize product commercialization through analytics, technology, and outsourced sales and medical services. Together, Iqvia supports customers across the life science industry, and it serves biopharmaceutical firms, providers, payers, and policymakers.

Paychex is a cloud-based human capital management provider offering payroll, compliance, talent management, benefits administration, and retirement services. The firm also provides HR outsourcing services, including professional employer organization, or PEO, offerings, enabling clients to reduce HR overhead. Paychex primarily targets small and midsize businesses, although its acquisition of Paycor in 2025 signals the firm's aspirations to expand into the midmarket segment, serving firms with more than 100 employees. As of fiscal 2026, Paychex has approximately 800,000 clients and manages payroll for one in 11 workers in the United States.