Competence Call Center is a European company headquartered in Berlin. The service company has over 7,500 employees at 22 locations in 11 countries and operates customer hotlines on behalf of other companies. The company's locations are currently in Aachen, Barcelona, Berlin, Biel/Bienne, Brașov, Bratislava, Bucharest, Gdansk, Dortmund, Duisburg, Dresden, Essen, Istanbul, Izmir, Leipzig, Paris, Riga, Sarajevo and Vienna. The company was founded in 1997 under the name Thomas Kloibhofer Telekommunikation GmbH with 15 employees in Vienna. Since 1 July 1998, the company has been trading as Competence Call Center GmbH. The number of employees in Vienna grew to over 400. In order to better cover the market in Germany, the first German location was opened in Berlin in 2001. This was followed by the location in Aachen in 2018, among many others.