Antoine Montandon

Antoine Montandon is the founder of Family Office International SA, a Geneva-based single-family office that he established around 2001–2002. Public business registries (Moneyhouse, business-monitor.ch) list him as the branch-office director of "Family Office International SA Inc., Yorklyn, succursale de Genève," a Swiss branch of a Yorklyn (Delaware/US)-registered entity, founded in 2002. Aggregator profiles describe him as holding a Master's degree in Finance from City University (London).

The firm he runs positions itself as a single-family office that selects banks, fund managers and investment strategies on behalf of ultra-high-net-worth clients, with a stated focus on alternative investments, hedge funds, private equity and venture capital. Its own marketing materials describe services spanning investment management, wealth protection, estate planning, family governance, tax optimization and concierge services, and reference direct investments into operating companies through "club deals."

Note on the record: Montandon and his firm keep a low public profile. Beyond business-registry filings, a LinkedIn page, and entries on data aggregators (AlphaMaven, RocketReach, RelSci), there is little independently reported information, and no detailed verifiable career chronology, prior employers, or dated biographical milestones are available in public sources. The firm's website is a single, sparsely-staffed page that names no principals other than the contact details below.

• Operates as a single-family office, meaning capital is deployed on behalf of one (or a small group of) wealthy family clients rather than as a fund with outside LPs — decisions are discretionary and relationship-driven.
• Stated mandate spans alternative investments, hedge funds, private equity and venture capital, plus real estate; the firm describes itself as selecting "the best banks, fund managers and investment strategies available on the market place."
• Does direct/co-investments into operating companies via "club deals" for ultra-high-net-worth individuals — i.e., syndicated direct deals alongside other family offices rather than purely fund-of-funds allocation.
• No publicly stated check-size range, single-sector thesis, or written investment criteria could be verified.