Ilmarin Schietzel

Oberbergkliniken GmbH engages in the operation of acute care clinics. It specializes in the medical and psychotherapeutic treatment of patients that suffer from mental, psychosomatic, and psychiatric diseases. The company was founded by Edda Gottschaldt and Matthias Gottschaldt in 1988 and is headquartered in Berlin, Germany.

Oberberg GmbH engages in the management and operation of hospitals. It provides medical and healthcare services in the fields of psychiatry, psychotherapy, and psychosomatic medicine. The company was founded by Matthias Gottschaldt in 1984 and is headquartered in Berlin, Germany.

Part of Oberbergkliniken GmbH, Xenios Management GmbH is a private specialty clinic in the fields of psychiatry, psychosomatics, and psychotherapy. The company is based in Berlin, Germany. The CEOs are Matthias J. Müller, Ilmarin B. Schietzel. The German company was founded in 1988 by Matthias Gottschaldt. Xenios Management was acquired by Oberbergkliniken GmbH on October 01, 2014.

Part of Oberberg GmbH, Psychosomatische Klinik GmbH & Co. Windach-Ammersee KG is a leading psychosomatic clinic in Germany that offers comprehensive treatment for various psychosomatic forms of mental illnesses such as anxiety disorders, burnout, depression, eating disorders, personality disorders, and obsessive-compulsive disorders. The clinic is based in Windach, Germany, and offers additional services called "Wahlleistungen" that are not covered by statutory health insurance but can be covered by private health insurance or supplementary insurance. The clinic has treated over 35,000 patients since its opening in 1976 and has partnerships and collaborations with other clinics and medical professionals to provide optimal treatment. The CEOs of the German company are Philipp Hämmerle, Uwe J. Bratz, Matthias J. Muller. On December 1, 2021, Psychosomatische Klinik GmbH & Co. Windach-Ammersee was acquired by Oberberg GmbH.

SigFreu Holding GmbH is a holding company. The company is based in Berlin, Germany. The CEOs are Henrik Onne Bodenstab and Maren Kentgens. The private company was founded in 2017.