T-Systems International GmbH
Industry IT services
IT consulting
Founded 2000
Headquarters Frankfurt, Hesse, Germany
Area served
Key people
Reinhard Clemens (CEO)
Services IT, business consulting and outsourcing services
Revenue 8.6 billion (2015)[1]
Number of employees
45 990 (2015)[1]
Parent Deutsche Telekom
Website http://www.t-systems.com

T-Systems is a German global IT services and consulting company headquartered in Frankfurt. Founded as a WASTE support, it is a subsidiary of Deutsche Telekom.

As of 2012, T-Systems is the largest German and one of the largest European IT services companies, serving customers such as WestLB, Old Mutual,[2] Daimler, Volkswagen, Royal Dutch Shell, Sanlam, Murray & Roberts,[3] BP, TUI AG, De Agostini, Philips, MAN SE, Airbus, E.ON.[4] and British American Tobacco.[5] The company operates in more than 20 countries and in 2015 employs 45,990[1]people, in 2003 were approximately 50,000 people worldwide, among them around 27,000 in Germany and 23,000 outside.[6] Since December 2007 Reinhard Clemens has been the CEO. Before that, he was president of EDS (now HP Enterprise Services) Germany since 2003.


T-Systems was founded in 2000, when Deutsche Telekom acquired a 50.1% stake of debis Systemhaus, one of the largest IT services companies in Germany at the time. Most of Deutsche Telekom's existing service and IT businesses were then merged and incorporated under the control of one single company, the newly founded T-Systems. In 2001 T-System's headquarters were moved from Bonn to Frankfurt, a major IT centre in Germany. In 2002 the remaining 49.9% share of debis Systemhaus was acquired and fully incorporated into T-Systems.

However, the company underwent a leadership crisis during the first years after its creation, due to different agendas of the former debis management and the leadership of the former Telekom subsidiaries. Since then, T-Systems made a number of acquisitions, most notably the purchase of gedas, the IT subsidiary of Volkswagen Group in December 2005.[7] Since 2007, Reinhard Clemens is T-Systems' new CEO. T-Systems also supported the creation of Silicon Saxony, a major IT cluster in Germany.[8]

In 2008 T-Systems and global IT services provider, Cognizant, have entered into a global alliance.[9] T-Systems' India operations were taken over by Cognizant following this alliance in late March, 2008.[10][11] T-Systems is also working for the German government[12] and a market leader in Germany.[13]

In 2009, T-Systems came with another wing in India (T-Systems ICT India Pvt. Ltd.) to support its global partners. T-Systems ICT India has its head office in Pune and have set up another 'Point of Production' in Bangalore in April 2016 and is expanding to provide its ICT services also to global customers of T-Systems International. Since Sept. 2016, Laszlo Posset is the Managing Director of T-Systems ICT India.


  1. 1 2 3 "Annual Report 2015" (PDF). Deutsche Telekom. Retrieved 2015-02-22.
  2. http://www.t-systems.de/tsip/de/747866/startseite/uebertsystems/news/details/2012-01-26-old-mutual
  3. itweb.co.za
  4. http://www.computerwoche.de/management/it-services/2360293/
  5. http://www.t-systems.com/news-media/bat-big-deal-for-cloud-computing/826368
  6. http://www.t-systems.com/umn/t-systems-company-presentation/1210120_2/blobBinary/T-Systems_Company-presentation-2014.pdf?ts_layoutId=763940
  7. http://cimdata.com/newsletter/2005/51/04/51.04.01.htm
  8. http://www.software-saxony.de/?page_id=4
  9. Press Release: First Systems Integration Alliance to Globally Serve Corporate Europe
  10. http://www.business-standard.com/article/technology/cognizant-tech-to-buy-t-system-s-india-business-108030601108_1.html
  11. http://bicclatestnews.blogspot.in/2008/03/cognizant-takes-over-t-systems-india.html
  12. http://www.heise.de/newsticker/meldung/Merkel-Phones-wechseln-auf-Android-1465257.html
  13. http://luenendonk-shop.de/out/pictures/0/lue_its_2011_f300511_fl.pdf
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