Diamond Castle Holdings

Diamond Castle Holdings is a private equity firm based in New York City that specializes in middle-market leveraged buyouts and growth capital investments. Founded in 2004 by former senior professionals from DLJ Merchant Banking Partners, the firm manages investments across several core sectors, including healthcare, energy, and financial services. In the healthcare space, Diamond Castle focuses on service-oriented businesses, healthcare IT, and cost-containment platforms. Notable investments in the healthcare sector have included MultiPlan, a leading provider of healthcare cost management solutions, and Professional Physical Therapy, a major provider of outpatient physical therapy in the Northeast. The firm typically targets equity investments ranging from $50 million to $200 million in companies with strong management teams and clear growth potential. While the firm was most active in the decade following its inception, it continues to manage its portfolio and oversee its remaining assets.