Diethelm Keller Group
  • Operating Units
    Operating Units
    • Premium Brands
      Premium Brands
      • Dedon
      • Gloster
      • Garpa
    • Household Brands
      Household Brands
      • Zyliss
      • Cole & Mason
      • AdHoc
      • Swissmar
      • Culinare
      • Koenig
      • Turmix
    • BBQ Brands
      BBQ Brands
      • Outdoorchef
      • Grillfürst
      • BURN Outdoor Kitchen
      • BBQ King Company
    • Active Investments
      Active Investments
      • Angela Bruderer
      • Chimpy
      • Travellers Autobarn
      • Flummox
    • Industrial
      Industrial
      • Wetrok
  • Real Estate
  • Strategic Holdings
  • About Us
    About Us
    • The Group
    • Our Heritage
    • Success Factors
    • Our Organisation
    • Senior Management
    • Board of Directors
    • Our Values
    • Annual Review
    • Links
  • Contact
  • search

Operating Units

Diethelm Keller Group is a family-owned Swiss company that develops businesses with a long-term perspective across consumer, industrial, and service sectors worldwide. Founded by the Diethelm and Keller families in the late 1860s through trade between Europe and Asia, the Group has grown over generations into a company with a diversified portfolio and international reach.
Today, Diethelm Keller Group comprises five operating units with B2C and B2B brands, alongside Diethelm Keller Real Estate and strategic investments in DKSH Holding Ltd. and Bergos.
All brands operate with a high degree of entrepreneurial autonomy and hold strong positions in their respective markets. At the end of 2025, Diethelm Keller Group employed more than 2,000 people in 17 countries.
The Diethelm Keller Group remains family-owned, with members of the fifth generation already actively involved in governance and operations, ensuring continuity and longterm stewardship.

Premium Brands

Diethelm Keller Premium Brands is a global market leader in high-end outdoor furniture. It manages its brands Dedon, Gloster, and Garpa independently, each preserving its distinct identity, heritage, and design philosophy. Thanks to its own manufacturing facilities and close collaboration with leading designers, Diethelm Keller Premium Brands covers the entire value chain and ensures the highest standards in craftsmanship, materials, and quality. Dedon, Gloster, and Garpa employ more than 1,600 people worldwide and are active in over 80 countries.

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Household Brands

Diethelm Keller Household Brands is a market leader in the design, manufacturing, and marketing of innovative household, kitchen, and interior-design products. The company employs around 160 people and operates renowned brands such as Zyliss, Cole & Mason, AdHoc, Swissmar, and Culinare, which are sold in over 50 countries. The Group also holds the brand rights for Koenig and Turmix under a licence agreement with a Swiss distributor.

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BBQ Brands

Diethelm Keller BBQ Brands brings together the Group’s portfolio in the BBQ industry, covering the design, manufacturing, and marketing of barbecues, outdoor kitchens, and accessories. Outdoorchef is particularly well positioned in Switzerland and is recognised for its strong innovation capability. Grillfürst is a leading barbecue retailer in Europe. Burn Outdoor Kitchen designs and manufactures high-end outdoor kitchens Made in Germany, while BBQ King produces natural, additive-free seasoning blends. Diethelm Keller BBQ Brands operates with over 120 employees across the DACH region.

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Industrial

Diethelm Keller Industrial is represented by Wetrok, a Swiss B2B brand, focused on innovative, sustainable, and professional cleaning systems and solutions, serving a broad range of professional applications. With over 75 years of expertise, Wetrok has built long-standing customer relationships across more than 40 countries. As the engineering pillar of the Group, Diethelm Keller Industrial stands for stability and technical competence. With over 230 employees, Wetrok continues to develop innovation and reliable solutions for professional use worldwide.

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Active Investments

Diethelm Keller Investments holds equity stakes in innovative small and medium-sized companies, as well as selected start-ups, focusing on businesses with the potential to become leaders in their respective fields. The portfolio includes Travellers Autobarn, a provider of campervan rentals for independent travellers; Angela Bruderer, a Swiss multichannel retailer for home and living; Chimpy, Europe’s leading power bank rental service; and Flummox, a platform that scales consumer brands on online marketplaces.

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  • Operating Units
    • Premium Brands
    • Household Brands
    • BBQ Brands
    • Active Investments
    • Industrial
  • Real Estate
  • Strategic Holdings
  • About Us
  • Contact
  • Imprint
  • Legal Disclaimer
  • Data Protection Policy
  • © Diethelm Keller Holding Ltd.
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  • © Diethelm Keller Holding Ltd.
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