Prometric is a U.S. company that possesses significant market share in the test administration industry. Prometric operates a test center network comprised of over 3,000 sites in 135 countries. Many important certifications — including Microsoft, Oracle, IBM, the Medical College Admission Test, the European Personnel Selection Office exam, the Uniform Certified Public Accountant Examination, Architect Registration Examination, and the USPTO registration examination — are all administered at Prometric sites

http://www.prometric.com