Clemens Stewing
Chief Executive Officer at Mannesmann Precision Tubes GmbH
Network origin in Clemens Stewing first degree
| Entity | Entity type | Industry | |
|---|---|---|---|
Hüttenwerke Krupp Mannesmann GmbH
 Hüttenwerke Krupp Mannesmann GmbH Metal FabricationProducer Manufacturing Hüttenwerke Krupp Mannesmann GmbH is a steel manufacturing private company based in Duisburg-Huckingen, Germany. The CEOs of the German company are Herbert Eichelkraut, Gerhard Erdmann, Carsten Laakmann. The company specializes in the production of steel and precursors for the processing industry.
20
| Joint Venture | Metal Fabrication | 20 |
Mannesmann Precision Tubes GmbH
 Mannesmann Precision Tubes GmbH SteelNon-Energy Minerals Part of Salzgitter AG, Mannesmann Precision Tubes GmbH is a German company that manufactures steel tubes. The company is based in Muelheim an der Ruhr, Germany. The company was founded in 1885 by Reinhard Mannesmann, Max Mannesmann. The CEO is Clemens Stewing.
6
| Subsidiary | Steel | 6 |
Salzgitter Mannesmann GmbH
 Salzgitter Mannesmann GmbH SteelNon-Energy Minerals Part of Salzgitter AG, Salzgitter Mannesmann GmbH is a holding company with interest in producing steel and steel products. The company is based in Salzgitter, Germany.
1
| Subsidiary | Steel | 1 |
Chart of Companies connected to the second degree
Multi-company connection
Companies connected to Clemens Stewing via their personal network
| Company | Sector | Related people | Main position |
|---|---|---|---|
thyssenKrupp Rasselstein GmbH
 thyssenKrupp Rasselstein GmbH SteelNon-Energy Minerals thyssenkrupp Rasselstein GmbH engages in the operations of the production site for packaging steel. The company was founded on September 9, 1996 and is headquartered in Andernach, Germany. | Steel | Director/Board Member Chairman Director/Board Member | |
| SALZGITTER AG | Steel | Chief Executive Officer Director of Finance/CFO Human Resources Officer Chief Executive Officer Director/Board Member Director/Board Member | |
| HEIDELBERG MATERIALS AG | Construction Materials | Director/Board Member | |
Vattenfall AB
 Vattenfall AB Electric UtilitiesUtilities Vattenfall AB engages in the generation, distribution, and sale of heat and electricity. It operates through the following segments: Heat, Customers and Solutions, Wind, Power Generation, and Distribution. The company was founded in 1909 and is headquartered in Solna, Sweden. | Electric Utilities | Corporate Officer/Principal | |
| AURUBIS AG | Other Metals/Minerals | Chairman Director/Board Member Director/Board Member | |
| EISEN- UND HÜTTENWERKE AG | Financial Conglomerates | Chairman Director/Board Member Chairman | |
| BORUSAN MANNESMANN BORU SANAYI VE TICARET | Steel | Director/Board Member | |
| HELLA GMBH & CO. KGAA | Auto Parts: OEM | Director/Board Member | |
HDI Haftpflichtverband der Deutschen Industrie VVaG
 HDI Haftpflichtverband der Deutschen Industrie VVaG Multi-Line InsuranceFinance HDI Haftpflichtverband der Deutschen Industrie VVaG engages in the provision of insurance services to private and corporate clients. It specializes in life, accident, liability, vehicle, aviation, legal protection, burglary, storm, pet, as well as credit and surety insurance. The company was founded on January 14, 1905 and is headquartered in Hannover, Germany. | Multi-Line Insurance | Corporate Officer/Principal | |
Vallourec & Mannesmann Tubes SA
 Vallourec & Mannesmann Tubes SA SteelNon-Energy Minerals Vallourec & Mannesmann Tubes SA manufactures seamless hot-rolled steel tubes. The firm's products include feedwater heater tubes, circular hollow sections, and piping components. The company provides services to the automotive, construction & civil engineering, mechanical engineering, and oil & gas industries. It was founded in October 1997 and is headquartered in Boulogne, France. | Steel | Director/Board Member | |
Salzgitter Klöckner-Werke GmbH
 Salzgitter Klöckner-Werke GmbH Industrial MachineryProducer Manufacturing Salzgitter Klöckner-Werke GmbH engages in the acquisition, holding, and management of participating interests in companies, which develop and manufacture machines and equipment. It also specializes in the production of rolled steel and tubes products. The company was founded by Peter Klöckner on January 17, 1952 and is headquartered in Salzgitter, Germany. | Industrial Machinery | Chairman Director of Finance/CFO | |
thyssenkrupp Electrical Steel GmbH
 thyssenkrupp Electrical Steel GmbH SteelNon-Energy Minerals ThyssenKrupp Electrical Steel GmbH manufactures electrical steel and cold rolled low carbon steel. It focuses entirely on grain oriented electrical steel. The company produces and sells under the PowerCore brand. The firm PowerCore C grades are used in distribution and small transformers cores as well as in large power generators. The company was founded in 2002 and is headquartered in Gelsenkirchen, Germany. | Steel | Director/Board Member Director/Board Member | |
Mannesmann Verwaltung GmbH
 Mannesmann Verwaltung GmbH SteelNon-Energy Minerals Part of Salzgitter AG, Mannesmann Verwaltung GmbH is a German company that manufactures metal and stainless tubes. The company is based in Mulheim an der Ruhr, Germany. | Steel | Chairman Director of Finance/CFO Human Resources Officer | |
| RWTH Aachen University | College/University | Undergraduate Degree Undergraduate Degree Doctorate Degree | |
| University of Duisburg-Essen | College/University | Undergraduate Degree | |
| Heinrich-Heine-Universität Düsseldorf | College/University | Undergraduate Degree | |
EUROPIPE GmbH
 EUROPIPE GmbH SteelNon-Energy Minerals EUROPIPE GmbH manufactures steel pipes. It offers pipe, pipeline parts, secured logistics, financial support, research and development services. The company was founded in 1991 and is headquartered in Muelheim an der Ruhr, Germany. | Steel | Director/Board Member Director/Board Member | |
KHS GmbH
 KHS GmbH Industrial MachineryProducer Manufacturing KHS GmbH manufactures filling and packaging equipment for the beverage, food, and non-food sectors. Its products include blocked machines, processing systems, ECO pet line, aseptic filling, keg systems, labeling, thermal container treatment, pouching and palletizers. The company was founded in 1993 and is headquartered in Dortmund, Germany. | Industrial Machinery | Chairman Director/Board Member Director/Board Member Director/Board Member | |
Thyssenkrupp Steel North America, Inc.
 Thyssenkrupp Steel North America, Inc. SteelNon-Energy Minerals Thyssenkrupp Steel North America, Inc. engages in processing, marketing and distributing automotive flat steel products. The company is headquartered in East Lansing, MI. | Steel | Director/Board Member | |
Salzgitter Mannesmann Handel GmbH
 Salzgitter Mannesmann Handel GmbH SteelNon-Energy Minerals Part of Salzgitter AG, Salzgitter Mannesmann Handel GmbH is a German company that manufactures and distributes steel plates, strips, and sheets. The company is based in Dusseldorf, Germany. The CEO of the company is Volker Schult. | Steel | Chairman Director/Board Member Director/Board Member Chairman | |
Bantleon Invest AG
 Bantleon Invest AG Investment ManagersFinance Bantleon Invest AG is the German asset management subsidiary of Bantleon AG in Switzerland. The firm was founded in 1999 and formerly known as NORD/LB Asset Management and AG Warburg Invest AG. Headquartered in Hannover, Bantleon Invest provides asset management and fund administration services to German institutional investors and distribution partners. | Investment Managers | Director/Board Member Director/Board Member | |
Hans Böckler Stiftung
 Hans Böckler Stiftung Miscellaneous Commercial ServicesCommercial Services Hans Böckler Stiftung is a research and study promotion organization that is committed to co-determination as a principle of democratic society. The private company is based in Dusseldorf, Germany. and has subsidiaries in Germany. The German company's work is dedicated to the principle of co-determination in all its areas of activity. The division of labor is also a consequence of economic interrelationships at the international level and their deepening. The company provides specific and very different opportunities, burdens, design options, and challenges for employees and their representatives, companies, political and civil society actors. | Miscellaneous Commercial Services | Director/Board Member | |
IG Metall
 IG Metall Miscellaneous Commercial ServicesCommercial Services IG Metall is the largest individual trade union in the world, based in Frankfurt am Main, Germany, with subsidiaries in Germany. The German company provides information, materials, and useful guides to its members to help them achieve fairness and good working conditions in their workplaces and society. The private company's focus is on employment security, occupational safety, and value chains. The CEO of the company is Hans-Jürgen Urban. | Miscellaneous Commercial Services | Corporate Secretary | |
thyssenkrupp Hohenlimburg GmbH
 thyssenkrupp Hohenlimburg GmbH Wholesale DistributorsDistribution Services thyssenkrupp Hohenlimburg GmbH is a German company that supplies carbon steel products. The company is based in Hagen, Germany. The CEOs are Andre Matusczyk, Jan Janssen, and Markus Zobel. The private company was founded in 1993. | Wholesale Distributors | Director/Board Member Director/Board Member | |
Peiner Träger GmbH
 Peiner Träger GmbH Metal FabricationProducer Manufacturing Peiner Träger GmbH manufacturers and supplies beams and column sections made from steel. It offers structural shapes and wide flange beams, column, sheet piling, bearing pile, mine support sections and Y-steel sleepers. The company was founded in 1872 and is headquartered in Peine, Germany. | Metal Fabrication | Chairman Director/Board Member Director/Board Member Chairman | |
Salzgitter Flachstahl GmbH
 Salzgitter Flachstahl GmbH Metal FabricationProducer Manufacturing Part of Salzgitter AG, Salzgitter Flachstahl GmbH is a company that produces hot-rolled, cold-rolled, and coated flat steel products. The company is based in Salzgitter, Germany. The company also collaborates with Salzgitter Mannesmann Forschung to continuously develop materials and surfaces. In addition, the German company provides an online platform for its business partners to stay informed about the status of their orders. The platform includes information on the dimensions of hot-dip galvanized products and the surface type of Stronsal® coated products. The CEO of the company is Ulrich Grethe. | Metal Fabrication | Chairman Director/Board Member Director/Board Member Chairman | |
Hansaport Hafenbetriebsgesellschaft mbH
 Hansaport Hafenbetriebsgesellschaft mbH Other TransportationTransportation Part of Salzgitter AG, Hansaport Hafenbetriebsgesellschaft mbH operates harbor. The company is based in Hamburg, Germany. The CEO of the German company is Ben Thurnwald. | Other Transportation | Director/Board Member Director/Board Member Chairman | |
Salzgitter Mannesmann Grobblech GmbH
 Salzgitter Mannesmann Grobblech GmbH Industrial MachineryProducer Manufacturing Part of Salzgitter AG, Salzgitter Mannesmann Grobblech GmbH is a German company that manufactures heavy plates for diameter pipes. The company is based in Muelheim an der Ruhr, Germany. The company was founded in 1882. The CEO is Sebastian Bross. | Industrial Machinery | Chairman Director/Board Member Chairman | |
Ilsenburger Grobblech GmbH
 Ilsenburger Grobblech GmbH SteelNon-Energy Minerals Ilsenburger Grobblech GmbH manufactures and supplies heavy plates and high tensile steel grades. It offers products of different brand including MAXIL, BRINAR, and RESTIL. The company was founded in 2001 and is headquartered in Ilsenburg, Germany. | Steel | Chairman Director/Board Member Director/Board Member Chairman | |
Wohnungsbaugesellschaft mbH Salzgitter
 Wohnungsbaugesellschaft mbH Salzgitter Real Estate DevelopmentFinance Part of Stadt Salzgitter Koerperschaft des Oeffentlichen Rechts, Wohnungsbaugesellschaft mbH Salzgitter is a residential construction company based in Salzgitter, Germany. The German company offers modern and need-friendly housing at fair prices, with around 6,500 own and managed apartments. The CEOs of the company are Christian Heinrich, Jens Bischoff. The company provides an emergency service apartment search and has customer centers in different locations. The company also has a customer magazine called "Live in the field of view" where they inform their tenants about their work, current construction and modernization projects, and past promotions. | Real Estate Development | Director/Board Member | |
Salzgitter Mannesmann UK Ltd.
 Salzgitter Mannesmann UK Ltd. Wholesale DistributorsDistribution Services Salzgitter Mannesmann is a steel importer and distributor. It is ultimately controlled by the State of Lower Saxony. The British company was founded in 1989. The CEO is Julian Thompson. | Wholesale Distributors | Director/Board Member | |
Vattenfall Wind Power Ltd.
 Vattenfall Wind Power Ltd. Alternative Power GenerationUtilities Vattenfall Wind Power Ltd. owns and operates wind farms. The firm develops onshore and offshore projects. It engages in the development and construction of wind farms for infrastructure, manufacturing, and process industries. The company was incorporated on April 10, 2007 and is headquartered in London, the United Kingdom. | Alternative Power Generation | Director/Board Member | |
Verkehrsbetriebe Peine-Salzgitter GmbH
 Verkehrsbetriebe Peine-Salzgitter GmbH RailroadsTransportation Part of Salzgitter AG, Verkehrsbetriebe Peine-Salzgitter GmbH is a transportation company based in Salzgitter, Germany. The CEOs of the German company are Frederick Schröder, Johannes Dreier. | Railroads | Chairman | |
Semco Maritime A/S (Denmark)
 Semco Maritime A/S (Denmark) Engineering & ConstructionIndustrial Services Semco Maritime A/S engages in the contracting and engineering services within the offshore and onshore energy sector. It offers solutions within diesel and wind power plants; electrical transmission systems; and substations. The company was founded in 1998 and is headquartered in Esbjerg, Denmark. | Engineering & Construction | Director/Board Member | |
| Ertsoverslagbedrijf Europoort | Chairman | ||
thyssenkrupp Steel Europe AG
 thyssenkrupp Steel Europe AG SteelNon-Energy Minerals thyssenkrupp Steel Europe AG manufactures carbon steel, stainless steel, and special steel materials. Its products include hot and precision strips, heavy plates, sheet and coated products, organic coated strips and sheets, composite materials, electrical steel products, tinplates and black plates, and medium-wide strips. The company was founded in 1997 and is headquartered in Duisburg, Germany. | Steel | Chief Executive Officer Director of Finance/CFO Chief Executive Officer Chief Tech/Sci/R&D Officer | |
TKAS Auto Steel Co., Ltd.
 TKAS Auto Steel Co., Ltd. Industrial SpecialtiesProcess Industries TKAS Auto Steel Co., Ltd. is a Chinese company that manufactures and supplies hot dip galvanized steel. The joint venture company is based in Dalian, China. | Industrial Specialties | Director/Board Member Director/Board Member | |
Salzgitter Mannesmann International GmbH
 Salzgitter Mannesmann International GmbH Wholesale DistributorsDistribution Services Part of Salzgitter AG, Salzgitter Mannesmann International GmbH is a steel trader with 29 locations in 21 countries. The company is based in Dusseldorf, Germany. The CEOs of the German company are Alexander Eckhard Soboll, Jörg Grzella. | Wholesale Distributors | Chief Executive Officer | |
Gestamp Umformtechnik GmbH
 Gestamp Umformtechnik GmbH Motor VehiclesConsumer Durables Part of Acek Desarrollo y Gestión Industrial SL, Gestamp Umformtechnik GmbH is a German company that develops and produces high-quality car body and chassis components. The company is based in Bielefeld, Germany. The CEOs of the company are Francisco Jose Riberas Mera, Jesús Oscar Taboada Iglesias, Sébastien Alain Gourdon. | Motor Vehicles | Chief Tech/Sci/R&D Officer | |
| Allianz Für die Region GmbH | Director/Board Member | ||
Vallourec Deutschland GmbH
 Vallourec Deutschland GmbH SteelNon-Energy Minerals Part of Vallourec SA, Vallourec Deutschland GmbH is a German company that manufactures seamless steel tubes and pipes for the oil and gas industries. The company is based in Duesseldorf, Germany. The CEOs are Andreas Schubert, Herbert Schaaff, and Michael Kassing. The private company was founded in 2001 by Max Mannesmann and Reinhard Mannesmann. | Steel | Chief Executive Officer | |
| Industriepark Salzgitter-Watenstedt Entwicklungs GmbH | Director/Board Member | ||
Vattenfall Europe Windkraft GmbH
 Vattenfall Europe Windkraft GmbH Alternative Power GenerationUtilities Vattenfall Europe Windkraft GmbH is a German energy company that offers gas and electricity tariffs with an attractive instant bonus, up to 24 months price guarantee, and flexible online tariffs. The company is based in Hamburg, Germany. The company provides reliable energy services and offer eco-friendly electricity options with energy-saving tips. The company is a subsidiary of Vattenfall AB and ultimately controlled by the Government of Sweden. The company was founded in 2009, and Gunnar Groebler has been the CEO of the company since 2014. | Alternative Power Generation | Chief Executive Officer | |
Mannesmannröhren-Werk GmbH
 Mannesmannröhren-Werk GmbH SteelNon-Energy Minerals Mannesmannröhren-Werk GmbH is a steel tube manufacturing company based in Zeithain, Germany. The CEOs of the German company are Heinrich Clören, Jörn Winkels. Part of Salzgitter AG, Mannesmannröhren-Werk GmbH manufactures steel tubes. | Steel | Chief Executive Officer | |
| THYSSENKRUPP NUCERA AG & CO. KGAA | Engineering & Construction | Director/Board Member | |
Mannesmann Line Pipe Gmbh
 Mannesmann Line Pipe Gmbh SteelNon-Energy Minerals Part of Salzgitter AG, Mannesmann Line Pipe GmbH is a German company that manufactures and supplies welded steel pipes. The company is based in Siegen, Germany. The CEO of the company is Jörn Winkels. | Steel | Chief Executive Officer | |
Uhde High Pressure Technologies GmbH
 Uhde High Pressure Technologies GmbH Industrial MachineryProducer Manufacturing Part of thyssenkrupp AG, Uhde High Pressure Technologies GmbH is a German company that manufactures high pressure systems, material handling equipment and mining equipment. The company is based in Hagen, Germany. The CEOs are Dennis Günter Grimm, Christian Myland. The company was founded in 1996. | Industrial Machinery | Chief Executive Officer | |
Wte Betriebsgesellschaft mbH
 Wte Betriebsgesellschaft mbH Water UtilitiesUtilities Wte Betriebsgesellschaft mbH supplies drinking water and operates sewerage systems. The company is based in Hecklingen, Germany. The German company is ultimately controlled by the State of Niederösterreich. The CEOs of the company are Ralf Schröder, Michael Knust. | Water Utilities | Chief Executive Officer |
Statistics
International
| Germany | 42 |
| United Kingdom | 3 |
| Sweden | 2 |
| Turkey | 2 |
| France | 2 |
Sectoral
| Non-Energy Minerals | 17 |
| Producer Manufacturing | 9 |
| Utilities | 5 |
| Finance | 5 |
| Consumer Services | 4 |
Operational
| Director/Board Member | 90 |
| Chairman | 26 |
| Corporate Officer/Principal | 22 |
| Chief Executive Officer | 15 |
| Director of Finance/CFO | 8 |
Most connected contacts
| Insiders | |
|---|---|
| Heinz Jörg Fuhrmann | 30 |
| Burkhard Becker | 29 |
| Gunnar Groebler | 19 |
| Michael Kieckbusch | 17 |
| Andreas J. Goss | 11 |
| Bernhard Osburg | 11 |
| Carsten Evers | 10 |
| Arnd Köfler | 6 |
| Britta Peter | 4 |
| Jörn Winkels | 3 |
| Norbert Keller | 3 |
| Marco Gasse | 3 |
| Jörg Grzella | 3 |
| Ulrich Menne | 2 |
| Dennis Günter Grimm | 2 |
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