Jan Stefan Roell

Jan Stefan Roell has been the CEO of the Zwick / Roell Group since 2001. The German company operates as testing machines and systems.

Universitätsklinikum Ulm is a cross-subject university medicine that connects health care, research, and teaching. The company is based in Ulm, Germany, and has subsidiaries in Germany. Universitätsklinikum Ulm offers medical services, clinical studies, and research in various fields such as gynecology, obstetrics, internal medicine, psychiatry, radiation therapy, and urology. Additionally, Universitätsklinikum Ulm offers childcare services and facilities for accessibility. The German company also provides training and career opportunities for medical students, nursing, and administration staff. The private company was founded in 1982, and the CEO is Udo X. Kaisers.

BITZER SE operates as a holding company, which engages in the manufacture of compressors for the refrigeration and air conditioning industries. Its product portfolio includes reciprocating, screw, and scroll compressor technologies, as well as pressure tanks. The company was founded in 1934 and is headquartered in Sindelfingen, Germany.

Roellpartners GmbH, founded in 2007, is a leading provider of testing machines for material testing worldwide. The private company is based in Ulm, Germany. The German company's material testing machines are used in research and development and in more than 20 industries.

ZwickRoell GmbH & Co. KG engages in the manufacture of materials testing machines. Its products include static materials testing machines, dynamic and fatigue testing machines, automated testing systems, melt index testers, hardness testing machines, testing systems, testing software, measurement and control electronics, as well as impact testing products and accessories. The company was founded in 1935 and is headquartered in Ulm, Germany.

Clemex Technologies, Inc. develops, manufactures and markets image analysis systems and software used by microscopy quality control and research laboratories. It is also into automating measurement of objects in digital images from microscopes and precision optical devices. The company was founded on October 22, 1990 and is headquartered in Brossard, Canada.