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Multi Family OfficePuts its own capital into companiesLAST VERIFIED Oct 2026 · 3 SOURCES

GT Family Office AG

Independent Swiss multi family office in Zollikon, founded 1993; wealth advisory, investment management (real estate, stakes, club deals), family and corporate advisory.

USEFUL FOR Co-investors

Identity

HEADQUARTERS
Zollikon, Switzerland
FOUNDED
1993

Investment approach

ROUTES
Companies (own capital)
STRATEGIES
Real estateDirect investments

Overview

GT Family Office AG was founded in 1993 as an independent Swiss multi family office serving Swiss and foreign wealthy families, individuals, companies and investors. Its services cover wealth advisory, investment management, family management and corporate advisory. In investment management it sources real estate and company stakes for clients and structures club deals, in some of which it also invests itself. The disclaimer mentions affiliated companies in Switzerland, Germany and Turkey.

People

  • Thomas Eggenberger
    Founding Partner · source
  • Stephan Eggenberger
    CEO and Managing Director · source

Frequently asked questions

GT Family Office AG is a multi family office based in Zollikon, Switzerland, founded in 1993.

GT Family Office AG invests its own capital into companies. Its stated asset mix includes real estate and direct investments.

GT Family Office AG invests in HealthTech, Industrial & Manufacturing, Mobility & Logistics, Consumer & E-commerce, Fintech and Climate & Energy.

Key people at GT Family Office AG include Thomas Eggenberger (Founding Partner) and Stephan Eggenberger (CEO and Managing Director).