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MilliporeSigmaisanAmericanchemical,lifescienceandbiotechnologycompany,before2014knownasSigma-Aldrich,ownedbyMerckKGaA.

Chemical, life science and biotechnology company

Sigma-Aldrich (formally MilliporeSigma)[5][6] is an American chemical, life science, and biotechnology company owned by the multinational chemical conglomerate Merck Group.

Sigma-Aldrich was created in 1975 by the merger of Sigma Chemical Company and Aldrich Chemical Company. It grew through various acquisitions until it had over 9,600 employees and was listed on the Fortune 1000. The company is headquartered in St. Louis and has operations in approximately 40 countries.[7]

In 2015, the multinational chemical conglomerate Merck Group acquired Sigma-Aldrich for $17 billion.[8] The company is currently a part of Mercks life science business and in combination with Mercks earlier acquired Millipore, operates as MilliporeSigma.[5][6] It is headquartered in Burlington, Massachusetts, United States.[9]