Siemens is a German engineering and technology conglomerate founded by Werner von Siemens.

Look up siemens or Siemens in Wiktionary, the free dictionary.

Siemens may also refer to:

• Siemens (surname), list of people with the German surname
• Siemens family, a family of German inventors, engineers, and industrialists, including:
  • Werner von Siemens (1816–1892), German inventor and founder of Siemens AG
  • Carl Wilhelm Siemens (1823–1883), brother of Werner von Siemens and inventor of the Open Hearth Furnace

• Siemens, Michigan, a community in the United States

• Siemens AG, a German multinational corporation founded by the Siemens family.
• Siemens Energy, a German energy company
• Siemens Healthineers, a German medical technology company (75% owned by Siemens AG)
• Siemens & Halske (1847–1966), German electrical engineering company that later became Siemens AG
  • Siemens Brothers (1858–1955), British engineering branch of the company, later sold during World War I
• Siemens-Schuckert (1803–1966), German electrical engineering company incorporated into Siemens AG in 1966
• Siemens Transportation Group, unrelated Canadian transportation company

• Siemens Nexas, a type of metro train that operates in Melbourne, Australia
• siemens (unit), symbol S, the SI derived unit of electrical conductance
• Siemens-Martin process, open hearth furnace process invented by Carl Siemens
• Siemens mercury unit, an obsolete unit of electrical resistance

• List of Siemens products

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