Malvern Zetasizer Nano series

The Malvern Zetasizer Nano series is a globally recognized laboratory analytical instrument used for measuring particle size, zeta potential, and molecular weight of nanoparticles and macromolecules. Originally developed by Malvern Instruments Ltd. in the United Kingdom, the product range became a cornerstone of the company's portfolio following its founding in 1971. The brand underwent a significant transformation in 2017 when its parent company merged its activities with PANalytical B.V. from the Netherlands to form Malvern Panalytical Ltd.

Historically, manufacturing has been centered in Malvern, Worcestershire, UK, at the Enigma Business Park, though the company maintains a global manufacturing footprint with sites in Europe, North America, and Asia to support its extensive international distribution. In late 2025, the brand's parent company, Spectris plc, was acquired by the global investment firm KKR (Kohlberg Kravis Roberts & Co. L.P.) in a high-profile transaction that saw the company delisted from the London Stock Exchange. Today, Malvern Panalytical operates as a key business unit under the ultimate ownership of KKR, continuing to provide advanced precision measurement solutions for the pharmaceutical, chemical, and materials science industries.