Family Office International SA (Antoine Montandon Family Office) Overview

General Information

Family Office International SA (Antoine Montandon Family Office) is a single-family office headquartered in Geneva, Switzerland. Established in 2001, it manages wealth created through the Montandon lineage’s long-standing Swiss watchmaking and related industrial ventures. The office partners with private banks, fund managers and specialists to preserve capital, underwrite direct investments and coordinate intergenerational governance for its principals—driving disciplined multi-asset stewardship.