Hartmut Jacket

Gontermann Holding GmbH is an investment holding private company based in Siegen, Germany. and has subsidiaries in Germany. The German company is led by CEOs Frieder Spannagel, Fritz Spannagel, and Ulrich Scheib.

SMS group GmbH engages in the development and design of nonferrous metal, steel, and aluminum products. It specializes in digitalization, technical services, electrical and automation, design and manufacturing, additive manufacturing, lifecycle, SMS TECademy, sustainability, and intralogistics. The company was founded by Carl Eberhard Weiss in 1871 and is headquartered in Dusseldorf, Germany.

Fonderies J. Marichal Ketin & Cie SA produces and sells cast rolling mill rollers. It also supplies gauges including indefinite chill (ICDP), chromium iron (brand Comet), chromium steel (brand Galaxy), speed steel (brand Kosmos) and semi speed steel. The company was founded in 1911 and is headquartered in Liège, Belgium.

SEW Edelstahl Verwaltungs-GmbH provides administration and management services to companies. The private company is based in Freital, Germany. The German company was founded in 1993. The CEO is Gunnar Kohlschein.

BGH Edelstahl Siegen GmbH manufactures iron and steel products. The firm's services include material engineering, technical management, quality management and information management. company was founded in 1467 and is headquartered in Siegen, Germany.

BGH Edelstahlwerke GmbH manufactures semi finished steel, stainless steel, steel rods, wire rods and semi-finished stainless steel. The company is headquartered in Freital, Germany.

Part of Giesecke+Devrient GmbH, SysEleven GmbH is a DDoS protection provider and managed Kubernetes and cloud service provider based in Berlin, Germany. The German company offers performant platforms that remain stable even during unexpected spikes in traffic. The company's products and services are wide-ranging, and they prioritize high-tech, secure, and climate-neutral data centers. SysEleven's Full Managed Cloud provides a highly performant infrastructure for application continuity. The company was founded in 2007 by Marc Korthaus, who has been the CEO since then. SysEleven was acquired by secunet Security Networks AG on May 17, 2022 for $67.63 million.

HOMAG GmbH engages in the development, manufacture, and sale of machines and machine systems for the production of furniture and components, such as doors, windows, stairs, and floors. The company was founded on September 3, 2010 and is headquartered in Schopfloch, Germany.

MainSky Asset Management AG is an independent German asset management firm which was established in 2001. Headquartered in Frankfurt, the firm provides fixed-income management, asset allocation mandates, equity management and fund management services. The firm also specializes in liquid assets such as bonds and equities and is a pioneer in absolute return management.

Gontermann-Peipers GmbH is a German family-owned foundry company that has been in operation for almost 200 years. The private company is based in Siegen, Germany and has 550 employees. The company specializes in the production of reels for the steel and aluminum industry, cast components for mechanical engineering, and container bodies for civilian nuclear technology. The company also develops tailor-made solutions according to customer requirements. The company's core values include strength, vitality, family, responsibility, openness, learning ability, and determination. The company strives to realize solutions that are better and help their customers achieve outstanding achievements together.

SMS Holding GmbH manufactures industrial machinery components. It offers spare parts and logistics, maintenance and repairs, upgrades and modernization, and consulting and training. The company is headquartered in Hilchenbach, Germany.

SMS Meer GmbH manufactures machines and equipment of the plants for the steel, aluminum, and copper industries. The company offers seamless tube plants, welded tube plants, large-diameter pipe plants, tube finishing machines and plants, section and billet mills, wire rod and bar mills, light section mills, hydraulic presses, extrusion presses, closed-die forging presses, ring rolling machines, copper plants, aluminum ingot scalpers and aluminum band saws, and aluminum plants. It also provides erection and commissioning, start-up support, OEM spare part, health check, fact finding and plant optimization, maintenance optimization, modernization and revamping, and training services. The company was founded in 2000 and is headquartered in Monchengladbach, Germany

Paul Wurth SA provides engineering services. It also offers including consulting and develops software for planning and design, simulating and operating complete plants. The firm offers services to the iron and steel and the non-ferrous metals sector. The company was founded in 1870 and is headquartered in Luxembourg.

SMS GmbH provides metallurgical plant and rolling mill technology, press and forging technology and plastics technology services. The company was founded in 1819 and is headquartered in Dusseldorf, Germany.

Femeg Feinmechanik + Gerätebau GmbH & Co. KG is a private company based in Kirchheimbolanden, Germany. Femeg specializes in precision engineering and produces water meters and fittings. The German company also offers machining technology services. The company was founded in 1967 and is currently led by CEOs Frank Dück and Bernd Hofmann.