United Network for Organ Sharing

Located in Richmond, Virginia, the United Network for Organ Sharing (UNOS) is a non-profit, scientific and educational organization that administers the nation's only Organ Procurement and Transplantation Network (OPTN), established by the U.S. Congress in 1984.

UNOS was awarded the initial OPTN contract on September 30, 1986. UNOS is the only organization to ever manage the OPTN, and has continued to administer the contract for more than 16 years and four successive contract renewals. UNOS provides the OPTN with a functional, effective management system incorporating the Board of Directors, committees and regional membership to operate OPTN elements and activities.