Onyx & Cie SA is a family office - multi based in Geneva, Switzerland, founded in 1993. Verified contact details, AUM data, and investment preferences on FindLPs.
Onyx & Cie SA is a multi family office based in Geneva, Switzerland. Founded in 1993. The firm provides comprehensive wealth management, investment advisory, and family office services to multiple high-net-worth families.
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LP firm data compiled from public regulatory filings (SEC Form ADV, FCA, AIFMD disclosures), company websites and press releases, LinkedIn public profiles, and verified outbound email testing. AUM figures reflect self-reported values from filings and may lag by 1–2 fiscal quarters; bands are normalized in USD. We do not publish personal residential information; firms or individuals may request removal at /contact. Methodology & sources · Updated July 2026.