The network has its origins in United Independent Broadcasters Inc., a radio network founded in Chicago by New York City talent agent Arthur Judson in January 1927. In April of that year, the Columbia Phonograph Company, parent of the Columbia record label, invested in the network, resulting in its rebranding as the Columbia Phonographic Broadcasting System (CPBS). In early 1928, Judson and Columbia sold the network to Isaac and Leon Levy, two brothers who owned WCAU, the network's Philadelphia affiliate, as well as their partner Jerome Louchheim.