Founded in 1973, Rhoen-Klinikum AG is one of the largest private hospital operators in Germany. The company's network includes maximum- and intermediate-care hospital sites such as Campus Bad Neustadt, Klinikum Frankfurt (Oder), Giessen and Marburg University Hospitals, and Zentralklinik Bad Berka. It offers specialized medical treatments spanning cardiology, neurology, oncology, orthopedics, and rehabilitation. The company operates under a campus concept that integrates cross-sector medical, therapeutic, and nursing care, often with direct ties to universities and research facilities. In 2020, Asklepios Kliniken acquired a majority stake in the company, though Rhoen-Klinikum remains a separately listed entity.