- Kartogr. Abteilung der Kgl. Preuss. Landesaufnahme (Prussia) (1)
- Kartopechatnoi? Masterskoi? Instituta Inzhenerov (Moscow?) (1)
- Keen and Lee (Chicago) (1)
- Kelly & Co. Post Office (London) (1)
- Kentucky Geological Survey (Frankfort, Ky) (1)
- Kenyon Co (Des Moines, Iowa) (1)
- Kenyon Co (Des Moines, Iowa), 1915 (1)
- Kenyon Co. (Des Moines, Iowa), 1912 (1)
- Kenyon Co. Map Makers (Des Moines, Iowa), 1915 (1)
- 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)
- Kojiro Oshida (Kobe) (1)
- Koochiching County Abstract Co (International Falls, Minn) (1)
- Kristiania litografiske Aktiebolag (Oslo), 1920 (1)
- Kroll Map Co (Seattle, Wash), 1922 (1)