What does Prometric mean? Prometric, also known as Prometric Testing, is a test administration company founded in the United States. The company is headquartered in Canton (Baltimore, Maryland) in the United States. Prometric operates a network of test centers consisting of thousands of locations in 160 countries. Prometric is known as a leader in providing technology-based testing and assessment solutions to many of the world's most prestigious licensing and certification organizations, academic institutions, and government agencies.