MKSI vs PSO Comparison

MKS Inc formerly, 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.

UK-listed Pearson is a testing and educational provider. Pearson's primary operations are in assessment and qualification testing and higher education, but they also provide English education and testing, virtual learning, prehiring testing and screening, and upskilling/reskilling. The company divested noncore businesses, including the Financial Times, The Economist, and publishing house Penguin, and is now focused on being an educational resource and testing provider.