DEA Deutsche Erdoel AG was an international oil and gas company headquartered in Hamburg, Germany. It was a subsidiary of L1 Energy. In 2018, DEA owned stakes in oil and gas licenses in various countries and operated natural gas underground storage facilities in Germany. DEA is a derivation from Deutsche Erdöl-Aktiengesellschaft, the original name of the company. On 1 May 2019, DEA merged with Wintershall to form Wintershall Dea.
Robert Bosch GmbH, commonly known as Bosch, is a German multinational engineering and technology company headquartered in Gerlingen, Germany. The company was founded by Robert Bosch in Stuttgart in 1886. Bosch is 94% owned by the Robert Bosch Stiftung, a charitable institution. Although the charity is funded by owning the vast majority of shares, it has no voting rights and is involved in health and social causes unrelated to Bosch's business.
Dresser Industries was a multinational corporation headquartered in Dallas, Texas, United States, which provided a wide range of technology, products, and services used for developing energy and natural resources. In 1998, Dresser merged with its main rival Halliburton. Halliburton sold many of former Dresser non "oil patch" divisions, retaining the M W Kellogg Engineering and Construction Company and the Dresser oil-patch products and services that complemented Halliburton's energy and natural resource businesses. In 2001 Halliburton sold five separate, but somewhat related former Dresser non "oil patch" divisions, to an investment banking firm. Those five operations later took the name "Dresser Inc." In October 2010, Dresser Inc., was acquired by General Electric. It is headquartered in Addison, Texas.
BOC Ltd is a British based multinational, industrial gas company, more commonly known as BOC, now a part of Linde plc. In September 2005, BOC had over 30,000 employees on six continents, with sales of over £10.6 billion. BOC was a constituent of the FTSE 100 Index and the FT 30. On 5 September 2006 the BOC Group became part of the Linde Group of Germany.
ThyssenKrupp AG is a German industrial engineering and steel production multinational conglomerate. It resulted from the 1999 merger of Thyssen AG and Krupp and has its operational headquarters in Duisburg and Essen. The company claims to be one of the world's largest steel producers, and it was ranked tenth-largest worldwide by revenue in 2015. It is divided into 670 subsidiaries worldwide. The largest shareholders are the Alfried Krupp von Bohlen und Halbach Foundation and Cevian Capital. ThyssenKrupp's products range from machines and industrial services to high-speed trains, elevators, and shipbuilding. The subsidiary ThyssenKrupp Marine Systems also manufactures frigates, corvettes, and submarines for the German and foreign navies.
KUKA is a German manufacturer of industrial robots and factory automation systems owned by Chinese appliance manufacturer Midea Group.
Linde plc is a global multinational chemical company founded in Germany and, since 2018, domiciled in Ireland and headquartered in the United Kingdom. Linde is the world's largest industrial gas company by market share and revenue. It serves customers in the healthcare, petroleum refining, manufacturing, food, beverage carbonation, fiber-optics, steel making, aerospace, material handling equipment (MHE), chemicals, electronics and water treatment industries. The company's primary business is the manufacturing and distribution of atmospheric gases, including oxygen, nitrogen, argon, rare gases, and process gases, including carbon dioxide, helium, hydrogen, ammonia, electronic gases, specialty gases, and acetylene.
E.ON SE is a German multinational electric utility company based in Essen, Germany. It operates as one of the world's largest investor-owned electric utility service providers. The name originates from the Latin word aeon, derived from the Greek aion, which means age. The company is a component of the Euro Stoxx 50 stock market index, DAX stock index and a member of the Dow Jones Global Titans 50 index.
Air Liquide S.A. is a French multinational company which supplies industrial gases and services to various industries including medical, chemical and electronic manufacturers. Founded in 1902, after Linde it is the second largest supplier of industrial gases by revenues and has operations in over 80 countries. It has headquarters at the 7th arrondissement of Paris. Air Liquide owned the patent for Aqua-Lung until it expired.
SGL Carbon SE is a European company based in Germany. It is one of the world's leading manufacturers of products from carbon.
Rheinmetall Automotive is the Automotive sector of the parent group Rheinmetall. The company emerged in 1997 through the merger of KS Kolbenschmidt GmbH, Neckarsulm, and Pierburg GmbH, Neuss. Hence, at its various traditional locations the company is commonly known as Kolbenschmidt or Pierburg. 40 production plants in Europe, the Americas, Japan, India and China employ a total workforce of around 11,000. Products are developed in cooperation with international auto manufacturers. Rheinmetall Automotive ranks among the 100 biggest auto industry suppliers worldwide and is an important partner to the industry for such products as exhaust gas recirculation systems, secondary-air systems, coolant pumps, and pistons for car gasoline engines and as well as for the commercial vehicle sector.
Evonik Industries AG is a publicly-listed German specialty chemicals company headquartered in Essen, North Rhine-Westphalia, Germany. It is the second-largest chemicals company in Germany, and one of the largest specialty chemicals companies in the world. It is predominantly owned by the RAG Foundation and was founded on 12 September 2007 as a result of restructuring of the mining and technology group RAG AG.
Mahle GmbH is a German automotive parts manufacturer based in Stuttgart, Germany. It is one of the largest automotive suppliers worldwide. As a manufacturer of components and systems for the combustion engine and its periphery, the company is one of the three largest systems suppliers worldwide for engine systems, filtration, electrics, mechatronics, and thermal management. In 2018, Mahle's sales amounted to over €12.5 billion.
The Schunk Group is a company headquartered in Germany. The most important fields of endeavor are carbon technology and ceramics, environmental simulation and climate technology, sintered metals as well as ultrasonic welding.
The Viessmann Group is a German manufacturer of heating and refrigeration systems headquartered in Allendorf (Eder), Germany. With 22 production companies in 12 countries, distribution companies and representative offices in 74 countries and 120 sales offices throughout the world, Viessmann is international in its orientation. More than 54 percent of turnover is generated abroad. Since January 2022, the company is led by Martin Vießmann, Maximilian Viessmann (Group-CEO) and Ulrich Hüllmann (CFO). In April 2023, Viessmann announced that it would sell its heat pump division to its US competitor Carrier Global for €12 billion.
Kjellberg Finsterwalde is a group of German companies in the metal and electrical industry. The group consists of the three manufacturing companies, Kjellberg Finsterwalde Plasma und Maschinen GmbH, Kjellberg Finsterwalde Schweißtechnik und Verschleißschutzsysteme GmbH and Kjellberg Finsterwalde Elektroden und Zusatzwerkstoffe GmbH, and the Kjellberg Finsterwalde Dienstleistungsgesellschaft mbH, which fulfils group-wide functions. Sole shareholder of the group is the Kjellberg Foundation, with its registered seat in the Hessian city of Gießen. The group manufactures products for thermal metal working.
Stadtwerke Köln GmbH is the infrastructure and services company of the City of Cologne.
Uniper SE [ˈjuːnipɚ] is a German multinational energy company based in Düsseldorf, Germany, which has been a state-owned enterprise since late 2022. It is the biggest energy company by revenue in the world. The name of the company is a portmanteau of "unique" and "performance", which was given by long-term employee Gregor Recke. Uniper was formed by the separation of E.ON's fossil fuel assets into a separate company that began operating on 1 January 2016. In 2019, the company employed about 11,000 people in over 40 countries. In 2018, around one-third of the employees were based in Germany. Until 2022, it owned a subsidiary company in Russia called Unipro. Uniper was listed on the Frankfurt Stock Exchange.
Howden Turbo GmbH is a German engineering company, based in Frankenthal in the state of Rhineland-Palatinate. The company was formed after Colfax Corporation acquired Siemens Turbomachinery Equipment GmbH (STE) from Siemens in October 2017 for €195 million. The old brand name Kühnle, Kopp & Kausch has been returned to use. The Kühnle, Kopp & Kausch AG was a German mechanical engineering company based in Frankenthal. The company was acquired by Siemens and bore the name Siemens Turbomachinery Equipment GmbH (STE) until 2017. The company was renamed Howden Turbo GmbH through the sale to Colfax Corporation and Howden.
The Siepmann family is an over 200-year-old entrepreneurial dynasty originally from Hagen notable for their activities in the North Rhine-Westphalian coal, steel, ammunition, armaments industry as well as important supplier to the automotive, maritime and energy industries. The family business known as Siepmann-Werke GmbH & Co KG was among the largest employers of the region with over 3,000 employees and a major supplier for Germany during World War I and World War II for everything made out of steel such as curb chains for tanks. Today the company is still among the largest employers in the region and has the following subsidiaries: PERSTA, VALTRA Armaturenhandels GmbH, SD Machining GmbH as well as Esspart AB in Odensbacken (Sweden) and Siepmann Sverige AB in Gothenburg.
