Claus Schalper

XL-protein GmbH is a German biopharmaceutical company that specializes in the development of long-acting immunosuppressive antibodies for the selective suppression of organ rejection. The private company is based in Freising, Germany and was founded by Claus Schalper, who has been the CEO since incorporation. The company collaborates with other research institutions to develop novel biopharmaceuticals with enhanced action, such as the genetic fusion or chemical coupling of biopharmaceuticals with fully biodegradable PAS sequences. XL-protein's PASylation® technology has demonstrated significantly extended systemic half-life in vivo, potentially offering improved treatment options for autoimmune diseases and cystic fibrosis.

Isarna Therapeutics GmbH engages in developing selective TGF-ß inhibitors. It works on a pipeline of novel oligonucleotides and combination modalities to transcend clinical response and improve patient outcome. The company focuses on biopharmaceutical research, pipeline development, and partnering and licensing programs. Isarna Therapeutics was founded by Karl-Hermann Schlingensiepen and Reimar Schlingensiepen in 1998 and is headquartered in Munich, Germany.

Pieris AG develops and markets Anticalin-brand proteins. The firm specializes in the research and development of its Anticalin technology, with focus on deriving therapeutic proteins from human lipocalins. It focuses on solving pharmacological and pharmaceutical limitations of both protein- and non-protein-based drug platforms. It offers a pipeline of Anticalin therapeutics that has active and multi-program research and development collaborations with biopharmaceutical companies. The company was founded by Arne Skerra, Steffen Schlehuber, and Claus Schalper in 2001 and is headquartered in Freising, Germany.

Arthur Andersen LLP used to provide accounting services. It was also into consulting services for clients that operate businesses throughout the United States and around the world. Arthur Andersen was founded in 1913 and was headquartered in Chicago, IL.