K Stores
- K12
- K4G.com
- K7 Antivirus
- Kancelarskestolicky.com
- Kanopi by Armstrong World Industries
- Kapitus
- KAYAK US
- Kay Jewelers
- KC Chic Designs
- Keego Blinds
- Keepsake Quilting
- keepyourhomeip Int
- KEETSA Mattresses
- Kenneth Cole
- Kenny Flowers
- Kerastase
- Kerrits
- Keyzar Jewelry
- Kidspace Adventures
- Kiehl's
- Kiierr International LLC
- KIIROO WW
- KIKO US
- KingsBottle
- Kings Camo
- Kinguin
- KISSusa, FALSCARA, ColorsandCare, imPRESSbeauty
- KitchenAid
- KiwiCo
- Kiwi.com
- KLEVGR.
- Knetbooks.com
- Knfilters.com
- Kofax
- Komar Intimates
- Komar Sleepwear
- Kork-Ease
- KOSS Stereophones
- Krack Online
- Kroger
- Kush Queen