WEBSep 12, 2024 · Siemens AG, German energy technology and manufacturing company formed in 1966 through the merger of Siemens & Halske AG (founded 1847), Siemens-Schuckertwerke (founded 1903), and Siemens-Reiniger-Werke AG (founded 1932). Operating in more than 200 countries and regions, it engages in a wide range of manufacturing and services in areas such as ...