Among the largest African-American owned and operated media corporations in the United States, Radio One was started by Catherine L. Hughes in 1980. Radio One owns and/or operates 53 radio stations located in 16 urban markets in the United States. The company One received investments totaling $9.5 million from SBA-licensed SBICs in the late 1990s. Hughes also received an SBA-guaranteed 7(a) loan for $600,000 in 1980.