J Leon Group is a family office - single based in London, United Kingdom, founded in 1929. Verified contact details, AUM data, and investment preferences on FindLPs.
The J Leon Group is a fifth-generation single family office based in Hampstead, London. We are a diversified investment group with global exposure across a wide range of asset classes including public and private equity, hedge funds, and property. Alongside the investment portfolio, J Leon has a long-term philanthropic program. The group also runs a portfolio of single-manager hedge funds, a selection of direct private equity investments and, as a limited partner, J. Leon invests in more than fifty private equity funds and fund of funds. The group only invests from its own balance sheet and does not administer any third-party funds.
Investment types: Buyout, Debt - General, Private Equity, Fund of Funds, Growth/Expansion, Hedge Fund, Real Estate - General, Venture Capital, Venture Capital - Early Stage, Venture Capital - Later Stage
Sectors & themes: Commercial Property Acquisition & Development, Residential Property Acquisition & Development, Hedge Funds, Technology
Preferred geographies: Global, United Kingdom, United States, Europe
Location: 32 Hampstead High Street\nLondon\nNW3 1JQ\nEngland\nUnited Kingdom
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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 We do not publish personal residential information; firms or individuals may request removal at /contact.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.