Top Private Equity Firms in New York

New York City, one of the world’s leading financial centers, is home to a wide array of top-tier private equity (PE) firms. These firms drive innovation and business growth across industries like technology, infrastructure, healthcare, and financial services.

In this article, we explore ten of the most influential New York private equity firms, highlighting their investment strategies, sectors of focus, and long-term value creation.

1. KKR (Kohlberg Kravis Roberts)

Founded in 1976 and headquartered in New York City, KKR is one of the world’s largest and most influential private equity firms, managing over $638 billion in assets. The firm is widely recognized for pioneering the modern leveraged buyout and operates across private equity, credit, real assets, capital markets, and insurance solutions.

With multiple offices across New York, KKR maintains a strong local presence while serving a global investor base.

KKR typically invests over $100 million in companies across all stages, from pre-seed and seed to Series B and late-stage growth. Its portfolio spans sectors such as healthcare, infrastructure, energy, real estate, telecommunications, software, and consumer products.

2. Aquiline Capital Partners

Aquiline Capital Partners is a leading private equity investment firm founded in 2005, managing over $12 billion in assets. With offices also in London and Philadelphia, Aquiline specializes in financial services and technology, offering a broad investment platform that includes private equity, venture, and growth funding.

The firm targets early to mid-stage companies in sectors such as fintech, healthtech, IT services, life sciences, and B2B services, with investments typically over $100 million. Aquiline leverages deep industry expertise and strong relationships to help management teams solve complex challenges and unlock new growth opportunities over 3–5 year horizons.

3. LoneTree Capital

LoneTree Capital is headquartered in New York and was established in 2011. It provides flexible capital and hands-on operational support to accelerate revenue growth. The firm manages over $300 million in assets and invests between $10 million and $50 million per transaction, typically in Series B and later-stage companies.

LoneTree focuses on a wide range of industries including software, fintech, healthcare services, education, infrastructure, and consumer services. With a commitment to strategic sales, M&A, and IPO outcomes, LoneTree partners with businesses to scale faster, reduce risk, and achieve long-term value creation.

4. Stonepeak

Stonepeak is a New York-based private equity firm managing approximately $73 billion in assets, specializing in infrastructure and real assets. Founded in 2011, the firm invests across sectors like digital infrastructure, logistics, energy transition, transport, education, and real estate.

Stonepeak typically commits between $10 million and $50 million in Series B and later-stage companies, focusing on defensive, hard-asset businesses with predictable cash flows. With a global footprint spanning ten offices, Stonepeak brings deep operational support and partnership to long-term investments designed to deliver strong risk-adjusted returns.

5. One Equity Partners

One Equity Partners (OEP) is a middle-market private equity firm with more than $10 billion in assets under management. Founded in 2001 and spun out of JP Morgan, OEP has completed over 140 transactions globally, focusing on industrials, technology, and healthcare.

The firm invests in Seed to Series B stages, typically deploying over $100 million per transaction. OEP is known for its transformative combination strategy, merging like-sized businesses to create market leaders.

With offices in New York, Chicago, and Frankfurt, the firm uses its proprietary IRON Investment Process to identify and execute differentiated, long-term value-generating deals.

6. The Blackstone Group

The Blackstone Group, founded in 1985, is a leading global private equity firm, with over $545 billion in assets under management. Located in New York, Blackstone provides flexible capital to help companies overcome challenges and scale efficiently.

The firm focuses on Series B and later-stage investments, often exceeding $100 million per deal. Blackstone’s portfolio spans sectors including business services, financial services, mobility, and industrials.

With a global reach and world-class team, Blackstone is a preferred partner for transformative growth and strategic exits through IPOs or strategic sales.

7. Warburg Pincus LLC

With over $28 billion in assets under management, Warburg Pincus is a global private equity leader headquartered in New York. Founded in 1966, the firm has invested more than $77 billion in over 870 companies worldwide.

Warburg Pincus focuses exclusively on private equity, targeting Series B investments between $10 million and $50 million across healthcare, industrial, real estate, and energy sectors. The firm is known for building long-term partnerships with entrepreneurs and management teams to unlock scalable growth and operational excellence.

8. Star Mountain Capital

Star Mountain Capital is a New York-based, employee-owned investment firm focused on the U.S. lower middle market. The firm manages a multi-strategy platform that includes debt and equity investments in companies typically valued between $10 million and $150 million.

With a team of over 80 professionals and 40+ senior advisors nationwide, Star Mountain specializes in sectors like industrials, infrastructure, education, and IT services. The firm emphasizes capital preservation, strong risk-adjusted returns, and long-term value through hands-on collaboration with its portfolio companies.

9. Arsenal Capital Partners

Arsenal Capital Partners is a specialized private equity firm that invests in the healthcare and industrial sectors. Founded in 2000 and headquartered in New York, the firm focuses on high-growth, innovation-driven companies that are strategically important within their markets.

Arsenal brings deep technical and market expertise, often targeting businesses aligned with long-term sector trends. With a thesis-driven approach and operational focus, Arsenal aims to build transformative companies with lasting strategic value through collaboration, agility, and targeted execution.

10. Ronin Equity Partners

Ronin Equity Partners is a private equity firm based in New York City, known for its operationally driven investment model and disruptive approach. Ronin targets overlooked opportunities that larger firms tend to miss, often resulting in less competition and greater upside.

The firm is led by a small team of seasoned investors and operators who focus on building high-performance businesses by optimizing systems, data, and strategic processes. Ronin Equity Partners typically pursues investments in lower middle-market companies where its hands-on approach can drive significant value and transformation.

Let’s Recap

New York is home to many of the most dynamic and influential private equity firms in the world. From infrastructure and fintech to healthcare and industrials, these firms offer unmatched access to capital, strategy, and long-term value creation.

Whether you're scaling a startup or leading a mature business ready for its next phase, Private Equity List helps you connect with the right investor. Use the platform to explore investor profiles, filter by sector and stage, and find the ideal match for your growth goals.

Sign up for free today at Private Equity List and take your business to the next level.

Read More

• Top Private Equity Firms: Ultimate Guide
• What Are Private Equity Investors? A Quick Guide
• Find Private Investors for Startups: Your Guide to Success
• Private Equity Deal Sourcing Strategies: Expert Advice

Frequently Asked Questions