Waters Corp. is an analytical instrument manufacturing company, which designs, manufactures, sells and services, high performance liquid chromatography, ultra performance liquid chromatography and mass spectrometry technology systems and support products, including chromatography columns, other consumable products and comprehensive post warranty service plans. It operates through two segments: Waters and TA. The Waters segment designs, manufactures, distributes and services high performance liquid chromatography and ultra performance liquid chromatography instruments, columns and other chemistry consumables that can be integrated and used along with other analytical instruments. The TA Instruments segment designs, manufactures, distributes and services thermal analysis, rheometry and calorimetry instruments. The company was founded by James Logan Waters in 1958 and is headquartered in Milford, MA.