Jörn Bielenberg

Poppe + Potthoff GmbH develops and produces tubes, turned parts and components. Its products include common rail, precision steel tubes, couplings, machines and stainless steel railings. The company was founded in 1928 and is headquartered in Werther, Germany.

Norddeutsche Landesbank Girozentrale provides financial and commercial banking services to private, corporate, institutional, as well as public sector customers. It offers structured financing for the ship and aircraft industries, as well as for the energy, infrastructure, industry and real estate sectors in international projects. The company also functions as a central bank for savings banks. In addition, it is also active in the development business, where it offers consulting services for all issues related to development, including support services for filing of applications for programs. Norddeutsche Landesbank was founded on July 1, 1970 and is headquartered in Hannover, Germany.

Felix Schoeller Holding GmbH & Co. KG engages in the development and production of papers for a wide range of applications. Its product portfolio includes photo and digital printing, non-woven, release liner, decorative, and special papers. The company was founded by Felix Hermann Maria Schoeller in 1895 and is headquartered in Osnabrueck, Germany.

Part of VSM Vereinigte Schmirgel- und Maschinen-Fabriken AG, VSM Abrasives Corp. is a manufacturer of high-quality coated abrasives for industry users, specialist retailers, and trade professionals. The company is based in O'Fallon, MO. The company's knowledge of abrasives is second to none, and they have been in the industry for over 155 years.

Duna Vitex Csiszolóanyag Gyártó és Forgalmazó Kft. manufactures abrasive products. It offers sheets, pads, discs, rolls, and belts. The company was founded in 1906 and is headquartered in Budapest, Hungary.

Rüggeberg GmbH & Co. KG is an investment holding German company. The company is based in Marienheide, Germany. The CEOs of the private company are Jörg Hesse, Jörn Bielenberg, Stefan Kroll.

VSM Impavide SAS is a French company that specializes in producing coated abrasives for over 155 years. The private company is based in Tremblay-en-France, France, and was founded in 1998. The company offers an extensive product portfolio of more than 200 abrasive series suitable for various applications, from deburring to bevelling or achieving a perfect surface finish. The company's knowledge of abrasives is unparalleled, and they have experience in the production and application of flexible coated abrasives. VSM produces abrasive belts, sleeves, and long belts with various cloth and paper backings, as well as abrasive non-wovens. Jean-Guillaume De Douhet De Romananges has been the CEO of the company since 2013.