MKSI vs CELH 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.

Celsius Holdings plays in the energy drink subsegment of the global nonalcoholic beverage market, with 95% of revenue concentrated in North America. The firm now owns three energy drink brands: Celsius, Alani Nu, and Rockstar Energy. It dedicates its efforts to product innovation and marketing while outsourcing manufacturing and packaging to third-party co-packers and distribution to PepsiCo. The firm issued convertible preferred shares following PepsiCo's investments in 2022 and 2025, giving the latter an 11% stake in Celsius.