Cosby Harrison

Founded in 1937, Trade-A-Plane, our first publication, rapidly became the industry leader as the general aviation buy/sell marketplace for aircraft and equipment. Rock & Dirt, our next marketplace, was created in 1957, serving the heavy construction industry. Tradequip International, which focuses on the energy sector, was acquired in 1981. Rock & Dirt en Espa?ol, for Latin America heavy construction, was launched in 1992. Each of the print publications has a corresponding online marketplace.