Siemens AG (German pronunciation: [ˈziːməns] ⓘ[3][4][5] or [-mɛns][5]) is a German multinational technology company. It is focused on industrial automation, building automation, rail transport and health technology.[6] Siemens is the largest engineering company in Europe,[7] and holds the position of global market leader in industrial AI, automation, and industrial software.[8]
The origins of the conglomerate can be traced back to 1847 to the Telegraphen Bau-Anstalt von Siemens & Halske established in Berlin by Werner von Siemens and Johann Georg Halske. In 1966, the present-day corporation emerged from the merger of three companies: Siemens & Halske, Siemens-Schuckert, and Siemens-Reiniger-Werke. Today headquartered in Munich and Berlin, Siemens and its subsidiaries employ approximately 320,000 people worldwide and reported a global revenue of around €78 billion in 2023.[6] The company is a component of the DAX and Euro Stoxx 50 stock market indices.[9] As of December 2023, Siemens is the second largest German company by market capitalization.[10]
As of 2023, the principal divisions of Siemens are Digital Industries, Smart Infrastructure, Mobility, and Financial Services, with Siemens Mobility operating as an independent entity. Major business divisions that were once part of Siemens before being spun off include semiconductor manufacturer Infineon Technologies (1999), Siemens Mobile (2005), Gigaset Communications (2008), the photonics business Osram (2013), Siemens Healthineers (2017), and Siemens Energy (2020).
Werner von Siemens, co-founder of Siemens & Halske
Siemens & Halske was founded by Werner von Siemens and Johann Georg Halske on 1 October 1847. Based on the telegraph, their invention used a needle to point to the sequence of letters, instead of using Morse code. The company, then called Telegraphen-Bauanstalt von Siemens & Halske, opened its first workshop on 12 October.[11]
In 1848, the company built the first long-distance telegraph line in Europe: 500 km from Berlin to Frankfurt am Main. In 1850, the founder's younger brother, Carl Wilhelm Siemens, later Sir William Siemens, started to represent the company in London. The London agency became a branch office in 1858. In the 1850s, the company was involved in building long-distance telegraph networks in Russia. In 1855, a company branch headed by another brother, Carl Heinrich von Siemens, opened in St Petersburg, Russia. In 1867, Siemens completed the monumental Indo-European telegraph line stretching over 11,000 km from London to Calcutta.[12]