Companies catalogue
- K-RIDE （ケイライド）, Yaita-shi
- K-system, Mito-shi
- Kadoya Tofu Shop, Hitachiōmiya-shi
- Kairakuen Park Center, Mito-shi
- Kaminaga Auto Body, Shioya-machi
- Kamiyama Auto Body, Yaita-shi
- Kanazawatomezo Liquor Store Ltd., Mito-shi
- Kanoya Auto Body, Mooka-shi
- Kashimura Photo Studio, Hitachinaka-shi
- Kasumi, Tsukuba-shi
- Kasumi, Tsukuba-shi
- Kasumi, Tsukuba-shi
- Kasumi, Tsukuba-shi
- Kasumi, Tsukuba-shi
- Kasumi, Tsukuba-shi
- Kasumi Nakaminato, Tsukuba-shi
- Kato Tofu Shop, Mito-shi
- Katsumiya, Mito-shi
- Kawasaki Tatami Shop, Hitachinaka-shi
- Kawashima Clock Shop, Mito-shi
- Kays, Hitachinaka-shi
- Kikuchi Tatami Shop, Mito-shi
- Kimura Auto Body, Ōtawara-shi
- Kimura Tatami Shop, Mito-shi
- Kobayashi Auto Body, Utsunomiya-shi
- Kobayashi Auto Body Ltd., Chikusei-shi
- Koguchi Auto Body, Yaita-shi
- Koike Auto Body, Kaminokawa-machi
- Komatsuzaki Auto Body, Kasama-shi
- Konabe Auto Body, Nasukarasuyama-shi
- Konpon Tatami Shop, Mito-shi
- Kotabe Tatami Shop, Hitachinaka-shi
- Kozuka Auto Body Ltd., Kanuma-shi
- Kubota Auto Body, Mooka-shi
- Kume Tatami Shop, Ibaraki-machi
- Kurosawa Tatami Shop, Hitachinaka-shi
- Kyoei Auto Body, Utsunomiya-shi