PFE vs ADP Comparison

Pfizer is one of the world's largest pharmaceutical firms, with annual sales of roughly $60 billion. While it historically sold many types of healthcare products and chemicals, now prescription drugs and vaccines account for the majority of sales. Top sellers include pneumococcal vaccine Prevnar 13 and cardiology drugs Vyndaqel and Eliquis. Pfizer sells these products globally, with international sales representing 40% of total sales. Within international sales, emerging markets are a major contributor.

Automatic Data Processing, or ADP, is a global, cloud-based human capital management provider offering payroll, compliance, talent management, benefits administration, and retirement services. The firm also provides HR 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 market shares in its core markets. As of fiscal 2025, ADP counts over 1.1 million clients and manages payroll for more than 42 million workers across 140 countries.