Martin Bartenstein

RHI Magnesita Deutschland AG engages in the manufacture of refractory materials. Its products are used in the iron and steel, cement and lime, glass and non-ferrous metals industries. The company was founded in 1834 and is headquartered in Wiesbaden, Germany.

Grazer Wechselseitige Versicherung AG provides insurance products and services. It offers personal, motor vehicle, house and home, legal protection, agriculture, and operational cover insurances. The company was founded by Archduke Johann in 1828 and is headquartered in Graz, Austria.

Steiermaerkische Bank & Sparkassen AG provides banking and financial services to private and corporate clients. Its products and services include digital banking, accounts and cards, savings and investments, loans and home financing, commercial real estate financing, financial planning and insurance, as well as consulting services for commercial customers. The company was founded in 1825 and is headquartered in Graz, Austria.

Austro Holding GmbH operates as an investment holding company. Its investment activities involve businesses with above-average profit and growth potential, properties in urban locations, and even businesses in restoration and restructuring phases. The firm focuses on asset management, portfolio management, and annual income distribution. The company was founded by Erhard F. Grossing in 2010 and is headquartered in Vienna, Austria.

Graf & Pitkowitz Rechtsanwälte GmbH is a law firm based in Vienna, Austria. The Austrian company provides bespoke legal solutions to its clients, creatively and efficiently. The private company has been creating value for their clients since 1994 by tailoring solutions to their specific needs instead of offering standard legal services.

mag AG provides online trading services.

Part of RHI Magnesita NV, Dutch US Holding BV provides investment services. The private company is based in Rotterdam, Netherlands.