Prometric also known as Prometric Testing is a U.S. company in the test administration industry. Prometric operates a test center network composed of thousands of sites in 160 countries. Many examinations are administered at Prometric sites including those from NMLS, the European Personnel Selection Office, the Medical College Admission Test (MCAT), the Graduate Record Examinations (GRE), USMLE, the Diplomate of National Board-Common Entrance Test of National Board of Examinations, the Uniform Certified Public Accountant Examination, Architect Registration Examination, the USPTO registration examination, and American Petroleum Institute. Prometric’s corporate headquarters are located in Canton (Baltimore, Maryland) in the United States.