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Family HoldingPuts its own capital into companiesLAST VERIFIED Oct 2026 · 9 SOURCES

Diethelm Keller Group

Zurich family holding of the Diethelm and Keller descendants; owns consumer and industrial brands, a real estate portfolio, start-up stakes and anchor stakes in DKSH and Bergos.

USEFUL FOR Co-investors

Family & background

FAMILY
Diethelm and Keller
WEALTH ORIGIN
Swiss trading houses in Asia founded in the late 1860s
HEADQUARTERS
Zurich, Switzerland
FOUNDED
1868
OUTSIDE CAPITAL
No — own capital only

Investment approach

SECTORS
Consumer & E-commerceIndustrial & ManufacturingReal Estate & PropTech
ROUTES
Companies (own capital)
STRATEGIES
Direct investmentsReal estate

Overview

Diethelm Keller Holding Ltd. in Zurich is a privately held company whose principal shareholders are descendants of the founders, who began trading between Europe and Asia in the late 1860s. The group comprises five operating units with consumer and industrial brands such as Dedon, Zyliss and Wetrok, Diethelm Keller Real Estate, and equity stakes in SMEs and start-ups through Diethelm Keller Investments. It is anchor shareholder of DKSH Holding and holds a significant minority stake in private bank Bergos. At the end of 2025 the group employed more than 2,000 people in 17 countries.

Investment thesis

Long-term, family-owned investor that develops businesses across consumer, industrial and service sectors, giving its brands a high degree of entrepreneurial autonomy.

Holdings & investments (21)

  • DKSH HoldingNOTABLE
    Strategic holding, anchor shareholder
  • Dedon
    Consumer & E-commerce · Diethelm Keller Premium Brands
  • Gloster
    Consumer & E-commerce · Diethelm Keller Premium Brands
  • Garpa
    Consumer & E-commerce · Diethelm Keller Premium Brands
  • Zyliss
    Consumer & E-commerce · Diethelm Keller Household Brands
  • Cole & Mason
    Consumer & E-commerce · Diethelm Keller Household Brands
  • AdHoc
    Consumer & E-commerce · Diethelm Keller Household Brands
  • Swissmar
    Consumer & E-commerce · Diethelm Keller Household Brands
  • Culinare
    Consumer & E-commerce · Diethelm Keller Household Brands
  • Koenig
    Consumer & E-commerce · Diethelm Keller Household Brands
  • Turmix
    Consumer & E-commerce · Diethelm Keller Household Brands
  • Outdoorchef
    Consumer & E-commerce · Diethelm Keller BBQ Brands
  • Grillfürst
    Consumer & E-commerce · Diethelm Keller BBQ Brands
  • BURN Outdoor Kitchen
    Consumer & E-commerce · Diethelm Keller BBQ Brands
  • BBQ King Company
    Consumer & E-commerce · Diethelm Keller BBQ Brands
  • Wetrok
    Industrial & Manufacturing · Diethelm Keller Industrial
  • Travellers Autobarn
    Mobility & Logistics · Active investment (equity stake)
  • Angela Bruderer
    Consumer & E-commerce · Active investment (equity stake)
  • Chimpy
    Consumer & E-commerce · Active investment (equity stake)
  • Flummox
    Software & SaaS · Active investment (equity stake)
  • Bergos
    Fintech · Strategic holding, significant minority stake

People

  • Thomas Aebischer
    Chief Executive Officer; Chairman of the Investment Committee · source
  • George A. Keller
    Advisory Board and Investment Committee Member · source
  • Max-Gustav A. Keller
    Advisory Board and Investment Committee Member · source
  • Daniel Beksa
    Chief Financial Officer · source
  • Daniel R. Jagmetti
    Real Estate / Corporate Secretary · source
  • Andreas W. Keller
    Chairman of the Board · source
  • Adrian T. Keller
    Vice Chairman of the Board · source
  • Rudolf Ehrbar
    Board Member; Chairman of the Audit Committee · source
  • Peter Fankhauser
    Board Member; Chairman of the Advisory Board · source
  • Joy A. Keller
    Board Member · source

Frequently asked questions

Diethelm Keller Group is a family holding based in Zurich, Switzerland, founded in 1868.

Diethelm Keller Group invests on behalf of the Diethelm and Keller family (Swiss trading houses in Asia founded in the late 1860s).

Diethelm Keller Group invests its own capital into companies. Its stated asset mix includes direct investments and real estate.

Diethelm Keller Group invests in Consumer & E-commerce, Industrial & Manufacturing and Real Estate & PropTech.

Key people at Diethelm Keller Group include Thomas Aebischer (Chief Executive Officer; Chairman of the Investment Committee), Daniel Beksa (Chief Financial Officer), Daniel R. Jagmetti (Real Estate / Corporate Secretary) and Andreas W. Keller (Chairman of the Board).

Diethelm Keller Group's holdings and investments include DKSH Holding, Dedon, Gloster, Garpa, Zyliss, Cole & Mason, AdHoc and Swissmar, among others.

No. Diethelm Keller Group invests its own capital and does not raise money from outside investors.