One Equity Partners | 17,088 followers on LinkedIn. One Equity Partners is a middle market private equity firm with approximately $10 billion in assets under management focused on transformative combinations within the industrial, healthcare and technology sectors in North America and Europe. The firm seeks to build market-leading companies by identifying and executing transformative business combinations. OEP is a trusted partner with a differentiated investment process, a broad and senior team, and an established track record generating long-term value for its partners.