T-Mobile is the brand name used by some of the mobile communications subsidiaries of the German telecommunications company Deutsche Telekom AG in the Czech Republic, Poland and the United States.
Deutsche Telekom AG is a German telecommunications company headquartered in Bonn and is the largest telecommunications provider in Europe by revenue. It was formed in 1995 when Deutsche Bundespost, a state monopoly at the time, was privatized. Since then, Deutsche Telekom has consistently featured among FortuneMagazine's top Global 500 companies by revenue, with its ranking as of 2023 at number 79. In 2023, the company was ranked 41st in the Forbes Global 2000. The company operates several subsidiaries worldwide, including the mobile communications brand T-Mobile. It is the world's fifth-largest telecommunications company by revenue.
The Rhenus Group is an international logistics service provider based in Holzwickede near Dortmund, Germany. The company has branches in Europe, India, North, Central and South America, Asia, Africa, and Oceania. It is a subsidiary of German Rethmann Group.
DB Regio AG is a subsidiary of Deutsche Bahn which operates regional and commuter train services in Germany. DB Regio AG, headquartered in Frankfurt am Main. It is a 100% subsidiary of the Deutsche Bahn Group and there part of the DB Regio business segment, which also includes DB Regionnetz Verkehrs GmbH and other independent subsidiaries.
Arcor is the former name of the fixed phone line and Internet business of Vodafone D2 GmbH, a German subsidiary of telecommunications company Vodafone. It is the second-largest provider of fixed phone lines in Germany after Deutsche Telekom. Its name changed on 1 August 2009 after Vodafone completed acquisition of the company. Its headquarters were in Eschborn near Frankfurt. It is one of the few telecommunications companies in Germany to operate an ISDN network that is independent of the incumbent provider Deutsche Telekom.
Deutsche Woolworth GmbH & Company OHG is a chain of department stores in Germany and was a former subsidiary of the American F. W. Woolworth Company. As of 2022 the chain has more than 570 stores in Germany, 18 in Poland and 2 in Austria, they are aiming to have over 1,000 in the medium term and over 5,000 across Europe in the long term.
Mannesmann was a German industrial conglomerate. It was originally established as a manufacturer of steel pipes in 1890 under the name "Deutsch-Österreichische Mannesmannröhren-Werke AG". In the twentieth century, Mannesmann's product range grew and the company expanded into numerous sectors; starting from various steel products and trading to mechanical and electrical engineering, automotive and telecommunications. From 1955, the conglomerate's management holding with headquarters in Düsseldorf was named Mannesmann AG.
T-Systems International GmbH, trading as T-Systems, is an internationally operating service provider for information technologies and digital transformation. The company is part of Deutsche Telekom and is headquartered in Frankfurt am Main.
Vodafone GmbH is a telecommunications operator in Germany owned by Vodafone Group and headquartered in Düsseldorf. It provides mobile phone, LTE, 5G, cable internet, landlines, cable TV, and IPTV services. As of the third quarter of 2021, Vodafone GmbH has more than 31 million mobile customers in Germany, making it the third-largest provider of mobile phone services in Germany. The company's headquarters are in the suburb of Heerdt in Düsseldorf, with regional offices throughout Germany. Vodafone Germany's main competitors are 1&1 Mobilfunk, Telekom Deutschland and Telefónica Germany.
Dornier Group GmbH is an international consulting and project management company that operates in the fields of traffic, transport, the environment and water.
USU Software AG is a multinational software and services conglomerate headquartered in Möglingen,Germany. The company focuses primarily on digitalizing IT and customer services.
Lufthansa Consulting is an international aviation consultancy for airlines, airports and related industries. The company is an independent subsidiary of the Lufthansa Group and provides services to the air transportation industry worldwide. The headquarters are situated at the Frankfurt Airport Center (FAC) in Frankfurt, and there are branch offices in Moscow and Rio de Janeiro. Around 100 employees from 18 countries work on projects throughout the world. The German consultancy assists aviation-specific client groups including airlines, airports and aviation authorities as well as related industries such as ground handling companies, cargo terminal operators, aircraft manufacturers and financial institutions. Safety issues and sustainable aviation have gained increasing importance for the aviation industry as particularly airlines, and airports strive to comply with new security and environmental regulations.
Telefónica Germany GmbH & Co. OHG (German pronunciation:[teləˌfɔnɪkaːˈdʒœːɐ̯məniː]; also called Telefónica Deutschland ) is a provider of broadband, landline and mobile telecommunications in Germany. The company trades as O2 (typeset as O2).
1&1 AG is a German telecommunications service and landline and mobile telecommunications provider headquartered in Montabaur, Rhineland-Palatinate and listed on the TecDAX. Since 2017, the majority of the company has belonged to United Internet.
Röhlig Logistics is an owner-run intercontinental sea and air freight business. Röhlig has over 150 offices in over 35 countries on all continents, with more than 2,700 employees. In 2023, the company generated gross sales of € 1.2 billion, with an EBIT profit of € 20 million.
GK Software SE is a technology company headquartered in Schöneck/Vogtland. The company specializes in software and services for the operation of large retail company branches. GK employs about 1,258 individuals at fifteen locations worldwide. The name stands for the initials of the two founders of the company, Rainer Gläß and Stephan Kronmüller. According to the fiscal year 2023 annual report, GK Software achieved revenue of €172.5 million.
Kerstin Günther is a German business executive. Since 1991, she has held management positions in the Deutsche Telekom Group where in March 2012 she was appointed Senior Vice President Technology Europe, reporting to Claudia Nemat, board member Europe and Technology. From 2013 till 2017, she has been chairwoman of Magyar Telekom, which is a subsidiary of Deutsche Telekom. From 2016 to May 2020, Günther was a member of the Supervisory Board and the Audit Committee of the publicly listed, pan-European stock exchange Euronext N.V. Since June 2020 she is a member of the Supervisory Board and the Audit Committee of Deutsche Wohnen SE. Since April 2019, she is Chief Financial and Technology Officer of the health research center Helmholtz Zentrum München. She is responsible for the areas of finance, law, personnel, infrastructure, IT and digitalization.
Stefan Günther Tweraser is an Austrian business executive, consultant, and entrepreneur, known primarily for his leadership roles in European technology and telecommunications industries. In December 2015 he was named CEO of the Berlin-based hospitality analytics firm SnapShot GmbH.
René Obermann is a German businessman who is co-head of Warburg Pincus International LLC's European operations, and chairman of Airbus SE since April 2020. He was previously CEO of Deutsche Telekom AG.
T-Systems Multimedia Solutions GmbH is a German IT service and IT consulting firm headquartered in Dresden. The company provides consulting and software development services to medium and large organizations and has offices in Berlin, Bonn, Dresden, Hamburg, Stuttgart, Munich, Leipzig and Jena. In 2017, T-Systems MMS had 1900 employees and revenue of 173 Million EUR.
