- Columbia Art Association (Columbia, S.C.)4
- Columbia Canal (Columbia, S.C.)9
- Columbia Chamber of Commerce (S.C.)15
- Columbia Coca-Cola Bottling Company (Columbia, S.C.)5
- Columbia College (Columbia, S.C.)5
- Columbia Country Club (Columbia, S.C.)14
- Columbia Gems (Baseball team)6
- Columbia High School (Columbia, S.C.)19
- Columbia Hospital (Columbia, S.C.)14
- Columbia Hotel (Columbia, S.C.)5
- Columbia Housing Authority (Columbia, S.C.)15
- Columbia Metropolitan Airport25
- Columbia Museum of Art56
- Columbia Museums of Art and Science (S.C.)1
- Columbia Music Festival Association (Columbia, S.C.)6
- Columbia Reds (Baseball team)9
- Columbia Urban League (Columbia, S.C.)2
- Commercial buildings190
- Communications Workers of America1
- Computers69