Konrad Duttwiler

Oel-Pool AG is a private company based in Suhr, Switzerland. and has subsidiaries in Switzerland. Ramon Werner has been the CEO of the Swiss company since 2013.

AZ Medien AG publishes newspapers and periodicals. Its products include newspapers, magazines, daily newspapers, classified ads, digital, television and radio, books, as well as customer and newspaper printing. The company was founded on December 16, 1887 and is headquartered in Aarau, Switzerland.

Zehnder (China) Indoor Climate Co., Ltd. engages in the research & development, production, sales and system integration of HVAC and energy-saving products business. Its products include radiator, floor & ceiling radiation, central air conditioning, fresh air system, central vacuum, solar energy, heat pump, air filtration and instrumentation. The company was founded on December 27, 1995 and is headquartered in Beijing, China.

Property Pool Spreewald GmbH is a German company that buys and sells real estate properties. The private company is based in Cottbus, Germany. The CEO of the company is Nora El Kamel.

Part of Lagerhäuser der Centralschweiz AG, Lagerhäuser Aarau AG is a logistics company based in Schafisheim, CH. With almost 150 years of tradition, Lagerhäuser Aarau AG is a sister company of Weinkellereien Aarau and Cotra Autotransport. The Swiss company offers logistics services along the entire supply chain and operates logistics centers at attractive locations directly on the A1. Nico Barazetti has been the CEO of the company since 2015.

Zimtstern AG develops and sells snowboard, ski, and bike apparel. It offers snow jackets, bike shorts, hand bags, and skatedecks. The company was founded in 1995 and is headquartered in Suhr, Switzerland.

Zehnder Group International AG conducts businesses in the area of importation and exportation of goods. Its activities include securing logistic, administrative, and organizational procedures; processing of international production, marketing, and distribution orders; provision of support, coordination, and consulting services to third parties in the area of corporate management including operational and financial matters; as well as the development and sale of products and processes. The company was founded on September 2, 1998 and is headquartered in Graenichen, Switzerland.

Schmolz + Bickenbach GmbH & Co. KG manufactures and distributes specialty long steel products. The firm''s product range encompasses stainless acid- and heat-resistant steel, tool steel, engineering steel, bright steel, and specialty steel components. Its solutions are used in automotive, mechanical and plant engineering, energy, aerospace, medical technology, food and packaging, hydraulic, chemical, and mining applications. The company is headquartered in Duesseldorf, Germany.

CH Media Holding AG engages in the provision of media publishing and broadcasting services. The firm focuses on the management and publication of regional newspapers and online portals, radio and television stations, as well as magazines. It distributes Fit for Life, Nidwaldner Zeitung, Aargauer Zeitung, Anzeiger Luzern, WochenBlatt, Luzerner Zeitung, Zuger Presse, Oltner Tagblatt, Azeiger, Zuger Zeitung, Stadt Anzeiger, ToggenburgerTagblatt, Schweizer Musikzeitung, and Urner Zeitung. The company was founded on June 20, 2018 and is headquartered in Aarau, Switzerland.

Part of Zehnder Group AG, Zehnder Group Lenham Ltd. is a roofing materials manufacturer based in Maidstone, UK. The British company's board monitors the business activities to ensure that their executive team oversees processes that deliver for their wider stakeholders. Marley Ltd also has a long history of almost 100 years and is committed to reducing the impact on the environment. Founded in 1996, the company is at the forefront of the industry, offering a fully warranted roof system and a fully integrated solar energy solution.

R. Nussbaum AG engages in the production and sale of valves and installation systems. It also provides building services, such as sanitary and heating. The company was founded by Rudolf Nussbaum and Marie Nussbaum in 1903 and is headquartered in Olten, Switzerland.

Graneco AG engages in the acquisition, management, and financing of participating interests in industrial firms, retail businesses, and service enterprises. The company was founded on September 11, 1986 and is headquartered in Gränichen, Switzerland.

Immobilien-Pool Wiesental GmbH is a German company that specializes in brokering residential properties, buildings, and apartments. The private company is based in Lörrach, Germany. The CEO of the company is Nora El Kamel.