Historically, Waters has helped clients perform scientific research by providing analytical instruments, services, and supplies. The company specializes in liquid chromatography and mass spectrometry products (nearly 90% of legacy company sales), which are used primarily by biopharmaceutical firms to analyze a molecule’s structure during the drug discovery, development, and production processes. These tools can also be used in food and environmental quality testing as well as other industrial applications. Waters helps scientists examine the physical properties of various materials through its thermal analysis tools (low-double-digit percentage of sales).