The Private Equity Executive Who Built a $70 Billion Firm Without Leaving the Middle Market

The Private Equity Executive Who Built a $70 Billion Firm Without Leaving the Middle Market

Private equity tends to reward scale with drift. Firms that start small frequently migrate toward larger deals over time, attracted by the economics of billion-dollar transactions. H.I.G. Capital, the Miami-based firm co-founded by Sami Mnaymneh in 1993, has taken a different path — growing to $70 billion in assets while keeping its core focus on mid-sized companies that most large funds no longer bother to pursue.

Mnaymneh, who serves as Founder, Executive Chairman and CEO, retains personal sign-off authority over every capital commitment the firm makes. That governance structure is unusual at H.I.G.’s size, but it has become a defining feature of how the firm presents itself to investors, management teams, and potential acquisition targets.

Academic Foundations and Early Career of Sami Mnaymneh

Mnaymneh’s educational background combines fields that rarely overlap: law, business, and quantitative finance. He graduated first in his Columbia University class with a B.A. summa cum laude, then earned both a J.D. from Harvard Law School and an M.B.A. from Harvard Business School, each with honors. His early professional years included positions at Morgan Stanley and The Blackstone Group, where he reached Managing Director level before leaving to co-found H.I.G. alongside Tony Tamer.

That résumé shapes how H.I.G. approaches transactions — particularly its credit business. WhiteHorse, the firm’s direct lending affiliate, has invested roughly $18 billion across more than 285 middle market companies, predominantly through senior secured loans with conservative underwriting standards. When WhiteHorse Fund IV closed at $5.9 billion, it drew commitments from public and private pensions, sovereign wealth funds, and institutional investors across four continents.

Expansion Without Abandoning Core Strategy

H.I.G. now operates across private equity, growth equity, real estate, infrastructure, and special situations — seven strategies in all, with more than 500 investment professionals across 19 offices. European operations have grown considerably, with funds active in the U.K., Germany, France, Spain, and Italy, among other markets.

The firm has also moved into GP-led secondaries, targeting continuation funds as an entry point. A $1.5 billion target for backing PE continuation funds reflects how H.I.G. sees the secondaries market developing — less as a niche and more as an adjacent source of deal flow consistent with its existing portfolio relationships.

Portfolio activity has spanned sectors from healthcare to home services. H.I.G.’s investment in Rely Home, a home warranty provider, drew attention as an example of the firm’s consumer services appetite. Reporting from the Daily Iowan noted that the home warranty sector drew H.I.G. Capital investment through the Rely Home deal, underscoring the firm’s continued interest in service businesses with recurring revenue profiles.

Mnaymneh’s personal profile has grown alongside the firm. He has served on the board of Columbia College and the Dean’s Council of Harvard Law School, maintaining ties to the academic institutions where his career took shape. H.I.G.’s Miami headquarters has helped establish South Florida as a credible hub for alternative asset management — a shift that has accelerated as more financial firms have relocated from the Northeast.

The Private Equity Executive Who Built a $70 Billion Firm Without Leaving the Middle Market Private equity tends to reward scale with drift. Firms that start small frequently migrate toward larger deals over time, attracted by the economics of billion-dollar transactions. H.I.G. Capital, the Miami-based firm co-founded by Sami Mnaymneh in 1993, has taken a…