Dayton is the sixth largest city in Ohio. Several major corporations call Dayton their headquarters such as Reynolds & Reynolds, Standard Register, Teradata, CareSource, NewPage Corporation, LexisNexis, Kettering Health Network and Premier Health Partners. The city is home to Wright Patterson Air Force Base, which is also Dayton’s largest employer. Lamar Advertising of Dayton is the largest sole provider of Out-of-Home media in the market with coverage in nine counties, as well as the premier provider of digital billboards with iSpot capabilities.