One Equity Partners
One Equity Partners (OEP) is a middle-market private equity firm founded in 2001 as the merchant banking arm of Bank One, later JPMorgan Chase, before spinning out as an independent management company in January 2015. OEP pursues a disciplined, thematic strategy of 'transformational combinations' — buy-and-build platform investing — in middle-market industrial, healthcare, and technology companies across North America and Europe, typically deploying $50M-$250M per transaction. The firm has invested over $12.5 billion in assets under management across 125+ platform investments.
New York, United States · 16+ investments · 12 portfolio companies
- Headquarters
- New York, United States
- Founded
- 2001
- Website
- oneequity.com
- AUM
- $10.0B
- Portfolio Companies
- 12
- Total Investments
- 16
- Last Investment
- Mar 2026
- Geographic Focus
- United States, Europe
Investment Thesis
One Equity Partners is a Private Equity firm based in New York, United States. It has made 16 investments in Healthcare and Industrials, including tonari, Allegro MicroSystems and booost technologies.
Portfolio12
Co-investors24
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24 co-investors across 26 shared portfolio companies — who they back alongside, and how often they lead.
Venture Capital ×13 · Corporate VC ×5 · Accelerator ×1 · 30 shared rounds
Investment History
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