| 16321 | Japan | JTT Corporation | 13-14 Otoyama Nagasawa, Yawata 614-8367, Kyoto | +81 75 9824141 | www.jtt.co.jp | | |
| 16322 | Japan | Jubilo Co., Ltd. | 1 Chome-26-9 Egoe, Minami-ku, Kumamoto-shi, Kumamoto-ken | +81 96 3112072 | jubilo-net.co.jp | | |
| 16323 | Japan | Judenko Co., Ltd. | 161-2 Angyohara, Kawaguchi-shi, Saitama-ken | +81 48 2957416 | www.jdkweb.co.jp | | |
| 16324 | Japan | Jukes Inc. | 32-18-2 Nagauchicho, Kuji City, Iwate Prefecture 028-0041 | +81 194 611977 | jukes-k.co.jp | | |
| 16325 | Japan | Juki Shokou Co., Ltd. | 5-34-17 Imaiike, Chikusa-ku, Nagoya, Aichi 464-0850 | +81 120 005203 | www.jskk.com | | |
| 16326 | Japan | Just Corporation | Hokkedani-285-1 Hachimancho, Tokushima-shi, Tokushima-ken | +81 120 721901 | www.justcorporation.jp | | |
| 16327 | Japan | JX Nippon Oil & Energy Corporation | 1-1-2 Otemachi, Chiyoda-ku, Tokyo-to | +81 120 568704 | www.noe.jx-group.co.jp | | |
| 16328 | Japan | Jyukankyo Setsubi Co., Ltd. | TKM Nihonbashihamacho Tower 6th floor, 2-1-10 Nihonbashihamacho, Chuo-ku, Tokyo 103-0007 | +81 3 59237511 | https://jkks.co.jp | Kyocera Corporation, Solar Frontier K.K., Canadian Solar Inc., Mitsubishi Electric Corporation, Sharp Energy Solutions Europe, Panasonic Corporation (Sanyo), Hyundai Energy Solutions, Toshiba Corporation, Choshu Industry Co., Ltd., WWB Corporation | |
| 16329 | Japan | K Kougei | 50-1 Nakamaeda, Shimokitatetorisawa, Akita-shi, Akita-ken | +81 18 8383678 | www.k-kougei.com | | |
| 16330 | Japan | K-assist Co., Ltd. | Higashishiokojicho, Shimogyo Ward, Kyoto, Kyoto Prefecture | +81 75 6329655 | www.k-assist.info | | |
| 16331 | Japan | K・Earth Co., Ltd. | 4-9-20 Aioi, Chuo-ku, Sagamihara-shi, Kanagawa-ken | +81 42 7079307 | www.kearth.co.jp | | |
| 16332 | Japan | Kabaya Kogyo | 117 Matsunokimachi, Takayama-shi, Gifu-ken 506-0802 | +81 577 338687 | kabayakk.com | | |
| 16333 | Japan | Kadoaki Ltd. | 1268 Shirowacho, Minami Ward, Hamamatsu, Shizuoka, 430-0846 | +81 53 4421612 | www.kadoaki.com | | |
| 16334 | Japan | Kadokura Techno Co., Ltd. | 3 Chome-1 Kamikoidemachi, Maebashi-shi, Gunma-ken 371-0037 | +81 27 2101022 | www.kadokuratech.co.jp | | |
| 16335 | Japan | Kadonome Kensetsu Co., Ltd. | 557-2 Himuromachi, Utsunomiya-shi, Tochigi-ken 321-3232 | +81 28 6671280 | www.fp-kadonome.com | | |
| 16336 | Japan | Kagashiya Co., Ltd. | 477-4 Kiyose, Yoshii-machi, Ukiha-shi, Fukuoka | +81 943 752155 | www.kagasiya.co.jp | | |
| 16337 | Japan | Kagayaki Densetsu Co., Ltd. | 3-chome-23-10 Ryoke, Naka-ku, Hamamatsu-shi, Shizuoka-ken 430-0852 | +81 53 4437554 | https://www.kagayaki-densetsu.co.jp | | |
| 16338 | Japan | Kagoshima Inc. | 906 Hirai, Hinode-machi, Nishitama-gun, Tokyo-to | +81 42 5977565 | www.k-kagoshima.jp | | |
| 16339 | Japan | Kaihow Inc. | 15-10 Tobaru, Chatan-cho, Nakagami-gun, Okinawa-ken | +81 98 9364128 | kaihow.com | | |
| 16340 | Japan | Kajiki Sangyou Co., Ltd. | 2427, Nishibeppu, Kajikicho, Aira, Kagoshima Prefecture | +81 995 623456 | kajiki-sangyo.jp | | |
| 16341 | Japan | Kajima Corporation | 1-3-1 Moto-Akasaka, Minato-ku, Tokyo, 107-8388 | | www.kajima.co.jp | | |
| 16342 | Japan | Kajinon Inc. | 1 Chome-11-25 Bancho, Kita-ku, Okayama-shi, Okayama-ken | +81 86 2319711 | www.kajinon.net | | |
| 16343 | Japan | Kajioka Construction Co., Ltd. | 166 Kamiichize Maniwa-shi, Okayama-ken 719-3141 | +81 867 521137 | kajioka.co.jp | | |
| 16344 | Japan | Kamakura Kensetu Co., Ltd. | 1091-14 Fukuiogimachi, Kochi-shi, Kochi-ken 780-0966 | +81 88 8240730 | www.kamakurakensetu.com | | |
| 16345 | Japan | Kamigaki | 1-32 Hirobunkacho, Kure-shi, Hiroshima-ken | +81 823 712266 | www.kmgk.com | | |
| 16346 | Japan | Kamisato Kensetsu, Inc. | 3 Chome-14-14 Kenpuku, Honjo-shi, Saitama-ken 367-0044 | +81 495 255454 | kamiken.info | Yingli Green Energy Holding Co., Ltd., Kyocera Corporation, Solar Frontier K.K., Mitsubishi Electric Corporation, Sharp Energy Solutions Europe, Panasonic Corporation (Sanyo) | |
| 16347 | Japan | Kamiya Fuel Co., Ltd. | 1 Chome-5-1 Gamou, Koshigaya-shi, Saitama-ken 343-0838 | +81 48 9883036 | www.sefty-k.co.jp | | |
| 16348 | Japan | Kamogawakeimei Electric Corporation | 1-12-38 Esaka-cho, Suita-shi, Osaka Esaka Soliton Building 8th Floor, 564-0063 | +81 6 63858521 | www.z-kamogawa.co.jp | Mitsubishi Electric Corporation | |
| 16349 | Japan | Kana-L Co., Ltd. | 1-30-23 Tsurugaminehoncho, Asahi-ku, Yokohama 241-0021 | +81 120 450051 | www.kana-l.co.jp | | |
| 16350 | Japan | Kanachushoji Co., Ltd. | 3 Chome-15-3 Higashiyawata Hiratsuka-shi, Kanagawa-ken | +81 463 272201 | www.kanachu-solar.com | | |