PSO vs MKSI Comparison

U.K.-listed Pearson is the world's largest educational provider. The company has been disposing of noncore businesses such as the Financial Times, The Economist, and publishing house Penguin, and is now focused on being an educational resource and testing provider. While Pearson's primary activity centres on higher-level education, the firm also has significant operations in providing clinical assessments, professional certification and testing.

MKS Instruments Inc is engaged in providing instruments, subsystems, and process control systems used to measure, monitor, deliver, and control parameters of manufacturing processes. The company's product portfolio includes instruments, components, and systems required in manufacturing products such as flat panel displays, medical devices, and electronic materials, among others used in industrial technologies, semiconductors, life and health sciences, and research and defense markets. The company organizes itself into three reportable business segments: Vacuum Solutions, Photonics Solutions, and Materials Solutions. The Vacuum Solutions segment contributes the majority of the company's revenue, and the majority of its revenue is earned in the United States.