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Mnaymneh
Sami Mnaymneh
Rank #482
UNITED STATES•Finance & Investments•Private equity

Sami Mnaymneh

Net Worth
$7.797B
0% (24h)
Sami Mnaymneh is a prominent American business executive and the Co-Founder and Co-CEO of H.I.G. Capital, a global private equity firm. With a current net worth estimated at $7.8 billion, Mnaymneh's wealth stems primarily from his success in private equity. His career began at The Blackstone Group and Morgan Stanley before he co-founded H.I.G. Capital in 1993, which has grown into a firm managing billions in assets. Mnaymneh, a Miami Beach resident, is also known for his philanthropic endeavors and his support of various cultural and medical institutions.

How to read Sami Mnaymneh's profile

Public net-worth figures are estimates. They combine observable inputs—typically listed equity, disclosed transactions, and market prices—with editorial judgment where filings are incomplete (for example, private holdings, debt, or cross-holdings). For Sami Mnaymneh, we anchor the narrative to Private equity and Private equity, then update the headline number as markets move. The chart on this page is meant to show trajectory, not a certified balance sheet.

When you see $7.797B alongside global rank #482, interpret it as our best synthesis of widely cited ownership and price signals—not a claim about cash on hand. Estimates can diverge from other publishers because of different treatment of options, trusts, charitable vehicles, or illiquid assets. We document the general approach in methodology and welcome corrections via corrections.

Country (UNITED STATES) and career milestones on this page are curated for reader context; they should be verified against primary sources when used for research. Editorial metadata for this profile is refreshed on a rolling basis, with deeper audits at least annually (last noted cycle: 2026).

Looking for depth? When available, the dossier and timeline sections below add long-form context beyond the headline number—prioritize those modules when evaluating claims about strategy, controversies, or philanthropic commitments.

The Full Dossier

Early Life and Education

Sami Mnaymneh was born in the United States and holds American citizenship. He graduated Summa Cum Laude as valedictorian from Columbia College in 1981, earning a B.A. in Economics. He furthered his education by receiving a J.D. degree and an M.B.A. degree, with honors, from Harvard Law School and Harvard Business School, respectively.

Rise to Success

Mnaymneh's career began with key positions at The Blackstone Group and Morgan Stanley. He was a managing director at The Blackstone Group and a Vice President in the Mergers and Acquisitions department at Morgan Stanley & Co., where he focused on leveraged buyouts. In 1993, Mnaymneh co-founded H.I.G. Capital with Tony Tamer. Under their leadership, H.I.G. Capital has grown into a global private equity firm managing over $58 billion. Mnaymneh has led over 75 transactions in various industries throughout his career.

Key Business Strategies

H.I.G. Capital specializes in providing debt and equity capital to small and medium-sized companies, employing a flexible and operationally focused approach. The firm invests in a wide range of sectors, including healthcare, technology, and manufacturing. Mnaymneh's leadership has been instrumental in developing H.I.G. into a major player in the private equity market. The firm has a global presence with offices across the United States, Europe, and South America.

Philanthropy

Mnaymneh is involved in supporting various cultural and medical institutions. He has served on the Board of Columbia College and the Dean's Council of the Harvard Law School. In 2009, he established the Sami Mnaymneh Chair at the Economics Department of Columbia University.

Career Timeline

1993

Co-founded H.I.G. Capital

Co-founded H.I.G. Capital with Tony Tamer.

1981

Graduated as Valedictorian

Graduated Summa Cum Laude from Columbia University with a BA in Economics.

Philanthropic Impact

EducationUnknown

Sami Mnaymneh Chair at Columbia University

Established the Sami Mnaymneh Chair at the Economics Department of Columbia University.

Culture and MedicalUnknown

Cultural and Medical Institutions Support

Supports cultural and medical institutions including Tate Modern, Whitney Museum of American Art, and Memorial Sloan Kettering Cancer Center

Key Business Ventures & Holdings

CompanyStakeValue
WhiteHorse Finance Inc10.00%$30M

Net Worth History

In-Depth Analysis

Early Life and Education

Sami Mnaymneh was born in the United States and holds American citizenship. He graduated Summa Cum Laude as valedictorian from Columbia College in 1981, earning a B.A. in Economics. He furthered his education by receiving a J.D. degree and an M.B.A. degree, with honors, from Harvard Law School and Harvard Business School, respectively.

Rise to Success

Mnaymneh's career began with key positions at The Blackstone Group and Morgan Stanley. He was a managing director at The Blackstone Group and a Vice President in the Mergers and Acquisitions department at Morgan Stanley & Co., where he focused on leveraged buyouts. In 1993, Mnaymneh co-founded H.I.G. Capital with Tony Tamer. Under their leadership, H.I.G. Capital has grown into a global private equity firm managing over $58 billion. Mnaymneh has led over 75 transactions in various industries throughout his career.

Key Business Strategies

H.I.G. Capital specializes in providing debt and equity capital to small and medium-sized companies, employing a flexible and operationally focused approach. The firm invests in a wide range of sectors, including healthcare, technology, and manufacturing. Mnaymneh's leadership has been instrumental in developing H.I.G. into a major player in the private equity market. The firm has a global presence with offices across the United States, Europe, and South America.

Philanthropy

Mnaymneh is involved in supporting various cultural and medical institutions. He has served on the Board of Columbia College and the Dean's Council of the Harvard Law School. In 2009, he established the Sami Mnaymneh Chair at the Economics Department of Columbia University.

Data Sources & Methodology

Figures for Sami Mnaymneh are synthesized from the sources below and cross-checked against our net worth methodology. Estimates may lag market moves; see corrections to report discrepancies.

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