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Adesso SE (spelling adesso SE) is a German stock-listed consulting and IT services company headquartered in Dortmund, Germany. Luenendonk & Hossenfelder ranks adesso on position 16 of the 25 leading IT consulting and system integration companies in Germany.
The company's core industries are insurance/reinsurance, banking/financial services, healthcare, public administration, lottery companies, the automotive industry and mechanical engineering and manufacturing industries. Other customers are mainly in retail, energy and water sectors.
Adesso Consulting Company for Software Process Management mbH was founded 1997 in Dortmund. In 1999, subsidiaries were founded, which now operate under the names of e-Spirit AG and Adesso mobile solutions GmbH. In 2000, the legal form changed and the company changed its name to Adesso AG. At that time Adesso had about 100 employees. In 2019, around 4000 employees worked for the company (as of August 30, 2019).In 2006 Adesso took over the majority share of GADIV GmbH and founded the WestNet Lottoservice GmbH.
On 17 March 2006 it was announced that Adesso AG and the stock-listed company BOV AG (Essen) intended to merge.
This intention was confirmed by the Annual General Meetings of the two companies, first by Adesso AG on 14 July 2006 and then by BOV AG on 25 July 2006.As part of the merger of Adesso and BOV AG, Adesso took over the stock exchange listing of BOV AG by reverse takeover. In May 2008, the new Adesso shares from the capital increase were admitted to trading on the regulated market of the Frankfurt Stock Exchange in order to carry out the merger. The shares of Adesso AG are listed in the General Standard segment.
On 20 April 2010, the company acquired 60% of the shares of evu.it GmbH, a provider of specialised SAP solutions for energy and water utilities, which was increased to 100% in 2013 and the company's business was transferred to Adesso AG as part of an asset deal in August 2013.
On March 29, 2012, Adesso acquired 51% of the shares of the Arithnea GmbH, based in Neubiberg near Munich, Germany. The company specializes in consulting, implementing and maintaining e-Business applications, combining agency services such as design- and user experience with the implementation of e-Commerce platforms. A purchase agreement for the early acquisition of the remaining 49% of the shares was signed in 2015.
With effect from 1 July 2015 adesso acquired 100% of the shares of the Born Informatik AG in Bern, Switzerland, with approximately 120 employees. Born Informatik AG was merged into adesso Switzerland AG, based in Zurich, after the merger. In May 2016, Karlsruher Smarthouse Media GmbH, a provider of information and marketing platforms for financial service providers, followed with another 120 employees.
On 7. January 2019, Adesso announced that it was preparing to transform the company form from AG into SE. The conversion was completed on 27. November 2019 with a change in the Commercial Register.
Adesso divides its business into the segments IT Services and IT Solutions. The IT Services segment includes IT, strategy and management consulting as well as individual software development projects. IT Solutions comprises the software product and solutions business, in particular the standard software product family in|sure for the insurance industry and the FirstSpirit content management system. This software is used by numerous large companies such as Robert Bosch GmbH, Commerzbank AG and EADS for their Internet and Intranet presences. Furthermore, the portfolio offers a product that prepares web content for mobile phones.
Adesso is represented in Germany in addition to its headquarters in Dortmund in Aachen, Berlin, Bonn, Bremen, Düsseldorf, Essen, Frankfurt am Main, Hamburg, Hanover, Jena, Karlsruhe, Cologne, Much, Munich, Münster, Nuremberg, Reutlingen, Stralsund and Stuttgart.
There are subsidiaries in Switzerland, Austria, Turkey, Bulgaria, Spain, Hungary and the Netherlands. Further locations are in the United States and England.

