Brands
- John Myers
- John Round
- Johnstone Bros
- Jorgen Jensen
- Josef Hospodka
- Joseph Gloster
- Judith ripka
- Jules Jurgensen
- Junghans
- Justin Davis
- K.M.
- Karis
- Kay's Limited
- Keepsake
- Kelermes
- Kendal & Dent
- Kendall & Dents
- Kenneth Cole
- Kirk
- Kirk Stieff
- Klein
- Knife
- Kuner Schwer
- La Metropole
- La Triomphe
- Ladybird
- LAGOS
- Lalique
- LANGstar
- Lanoma Gin
- Lanvin
- Lassetter