Portage Partners is a family office - multi based in New York, United States, founded in 2010. Verified contact details, AUM data, and investment preferences on FindLPs.
First established in 2010 as a single-family office, Portage Partners Family Office is a New York City, New York-based family office managing the wealth of former multi-strategy hedge fund manager Michael Leffell. Today, Portage Partners acts as a multi-family office serving the Leffell family and a select group of high-net-worth clients through 10 East, is a membership-based investment firm available to a select group of institutions and individuals. The firm invests in both public and private equity, early stage, growth equity & credit, middle market private equity & special situations across a range of sectors, regions, and asset classes including direct investments, fund of funds, hedge funds, long-only, and real estate opportunities.
Investment types: Investment Funds, Long/Short Equity, Growth Capital, Direct Investing, Long-Term Investments, Private Equity, Equity Financing, Hedge Fund
Sectors & themes: AI/Robotics/Machine Learning, Cybersecurity, Security Services, Residential Property Acquisition & Development, Commercial Property Acquisition & Development, Hedge Funds, Fund of Funds Technology, Emerging Technology, Commercial & Professional Services, Commercial Services & Supplies, Real Estate, Real Estate Investment & Development, Finance, Alternative Investments, Traditional Investments (Liquid Assets)
Preferred geographies: Americas, Canada, Europe, Israel, Middle East, United States, Western Europe
Location: 18Th Floor\nNew York\nNew York\n10022\nUnited States
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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 We do not publish personal residential information; firms or individuals may request removal at /contact.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.