Jose Menoyo

ZS Pharma, Inc. engages in the development of development and commercialization of non-absorbed drugs to treat renal, cardiovascular, liver and metabolic diseases. It develops treatment of hyperkalemia. It also focuses on clinical development, novel technology, and clinical trials. The company was founded by Alvaro F. Guillem and Donald Jeffrey Keyser on February 5, 2008 and is headquartered in San Mateo, CA.

Alexion Pharmaceuticals, Inc. engages in the business of serving patients and families affected by rare diseases and devastating conditions through the discovery, development, and commercialization of life-changing medicines. The firm also focuses on the development of haematology, nephrology, neurology, metabolic disorders, cardiology, and ophthalmology. The company was founded by Joseph A. Madri, David W. Keiser, Stephen P. Squinto, and Leonard Bell in January 1992 and is headquartered in Boston, MA.