- Kenyon Co. Map Makers (Des Moines, Iowa), 1916 (1)
- Kenyon Co., Inc., Map Makers (Des Moines, Iowa), 1923 (1)
- Kenyon Co., Inc., Map Makers, (Des Moines, Iowa), 1920 (1)
- Kenyon Company (Des Moines, Iowa) (1)
- Kenyon Company (Des Moines, Iowa) (1)
- Kenyon Company, (Des Moines, Iowa), 1916 (1)
- Kenyon Print. & Mfg. Co (Des Moines), 1911 (1)
- Ketterlinus (7)
- Ketterlinus Imp. (1)
- Ketterlinus Philada. Imp. (1)
- Keulen, Johannes van.; Amsterdam (1)
- Keystone State Nurseries, (New Galilee, Pennsylvania) (1)
- Kimani Romance (New York), 2006 (1)
- King Midas Mill Company, Home Economics Department (Minneapolis, Minnesota) (1)
- King Stationary Company (Louisville, Kentucky) (1)
- Kingstedt Bros. Company (Canton, Ohio) (1)
- Kingston Souvenir Company (Kingston, New York) (1)
- Kishacoquilla Valley (1)
- Klotz und Kienast (1)
- Knapp Co., Inc. (1)