| 16201 | Japan | House Equipment Assist Co., Ltd | 3 Chome-10-11 Kitaokinosu, Tokushima-shi, Tokushima-ken 770-0872 | +81 88 6360813 | www.jsassist.com | | |
| 16202 | Japan | House Mente Shizuoka Co., Ltd. | 711 Chrome-1 Naganuma, Aoi-ku, Shizuoka-shi, Shizuoka-ken 420-0813 | +81 54 2973001 | www.hm-s.co.jp | | |
| 16203 | Japan | House Produce Co., Ltd. | 1-1-3 Umeda, Kita-ku, Osaka-shi, Osaka Osaka Station 3 Building 24th Floor, 530-0001 | +81 6 65351212 | taiyoukou-secchi.com | | |
| 16204 | Japan | Housing Support Corporation | 45-3 Natsukawa, Cakka-you, Okayama-shi, Okayama-ken 701-0164 | +81 86 2930111 | www.hatsuden-okayama.com | | |
| 16205 | Japan | Houtoku Okinawa | 24-6 Agarihama, Yonabaru-cho, Shimajiri-gun, Okinawa-ken 901-1304 | +81 98 9888344 | https://houtoku-okinawa.co.jp | | Next Energy and Resources Co., Ltd. |
| 16206 | Japan | House Pride Co., Ltd | 2387-2 Kamimizo, Chuo-ku, Sagamihara, Kanagawa 252-0243 | +81 120 447272 | www.house-pride.jp | | |
| 16207 | Japan | HS Kenko Co., Ltd. | 1426 Nagaoka, Chikushino-shi, Fukuoka-ken 818-0066 | +81 92 9183922 | hs-kenko.com | | |
| 16208 | Japan | HSK Co., Ltd. | 5-chome-15-10 Kurihama, Yokosuka, Kanagawa 239-0831 | +81 46 8849399 | www.hskinc.biz | | |
| 16209 | Japan | Hybrid Facilities Co., Ltd. | 2-1-11 Higashikanda, Chiyoda-ku, Tokyo Daiichi Sakamoto Building 3F, 101-0031 | +81 3 68110820 | www.hbd.co.jp | | |
| 16210 | Japan | Hyogo Okuei Construction Co., Ltd. | 1 Chome-4-19 Iwaya Nakamachi, Nada-ku, Kobe-shi, Hyogo-ken | +81 78 8822771 | www.hyogo-okuei.co.jp | | |
| 16211 | Japan | I Creation Co., Ltd. | 10-2 Juichibancho, Kasaoka-shi, Okayama-ken, 714-0098 | +81 865 691777 | https://www.imajuu.com | | |
| 16212 | Japan | I Eco Co., Ltd. | 3373 Kuzutsuka, Kita-ku, Niigata-shi, Niigata-ken 950-3321 | +81 25 3882311 | ieco.co.jp | | |
| 16213 | Japan | I Like Home Co., Ltd. | 8 Chome-2 Chuo, Kasukabe-shi, Saitama-ken | +81 48 7348877 | ilikehome-co.com | | |
| 16214 | Japan | I REC Co., Ltd. | 209-60 Shimokawamatamachi, Utsunomiya-shi, Tochigi-ken | +81 28 6131066 | www.i-rec.co.jp | | |
| 16215 | Japan | i-Crew Co., Ltd. | 6-17-1 Sanga, Daito-shi, Osaka-fu | +81 72 8131960 | i-crew.net | | |
| 16216 | Japan | I.3 Corporation | 9F, Live Love Building, 2-31-15 Eidai, Koto-ku, Tokyo 135-0034 | +81 03 58758925 | https://i3-jp.com | | |
| 16217 | Japan | Ichihara Sangyo Co., Ltd. | 2749-9 Kawai, Kani-shi, Gifu-ken | +81 120 221518 | www.ichihara-s.com | | |
| 16218 | Japan | Ichijo Co., Ltd. | 5 Chome-10-10 Kiba, Koto-ku, Tokyo-to | +81 120 543511 | www.ichijo.co.jp | | |
| 16219 | Japan | Ichikawa Construction Co., Ltd. | 173 Arai-cho, Ota-shi, Gunma 373-0852 | +81 276 454812 | www.ichikawa-c.co.jp | | |
| 16220 | Japan | Ichiken Corporations | 405-8 Oazafukuro, Honjo-machi, Saga-shi, Saga-ken | +81 952 241145 | www.kk-ichiken.co.jp | | |
| 16221 | Japan | Icsetubi Co., Ltd. | 1 Chome-33 Tegara, Himeji-shi, Hyogo-ken, 670-0972 | +81 120 411929 | www.icsetubi.com | | |
| 16222 | Japan | IDA Group | 4 Chome-384 Sakuragicho, Omiya-ku, Saitama-shi, Saitama-ken | +81 48 6443941 | www.ida-group.co.jp | | |
| 16223 | Japan | IDE Electric Co., Ltd. | 3812 Funatsu, Fujikawaguchiko-machi, Minamitsuru-gun, Yamanashi-ken 401-0301 | +81 555 720117 | www.ide-k.co.jp | | |
| 16224 | Japan | Ide Electric Co., Ltd. | 150-2 Tamoto, Kuroki-cho, Yame City, Fukuoka Prefecture, 834-1214 | +81 943 422684 | www.idk-d.com | | |
| 16225 | Japan | Idea Technology Co., Ltd. | 1-chome-9, Hamamatsucho, Minato, Tokyo, 105-0013 | +81 3 64359921 | www.idea-t.jp | | |
| 16226 | Japan | Idemitsu Kosan Co., Ltd. | 3 Chome-1-1 Marunouchi, Chiyoda-ku, Tokyo-to 100-0005 | | www.idemitsu.co.jp/nenryo/solar | | |
| 16227 | Japan | Igigumi Co., Ltd. | 2000-1 Akasaki, Kotoura-cho, Tōhaku-gun, Tottori-ken | +81 858 550811 | igigumi.jp | | |
| 16228 | Japan | IHI Plant Services Construction | 3 Chome-1-1 Toyosu, Koto-ku, Tokyo-to, 135-0061 | +81 3 62048300 | https://www.ipc-ihi.co.jp | Trina Solar Limited, AU Optronics Corporation, WWB Corporation | Omron Corporation, Toshiba Mitsubishi-Electric Industrial System Corporation (TMEIC), Sanyo Denki Co., Ltd. |
| 16229 | Japan | Iino Bussan Co., Ltd. | 1-5 Sakaemachi, Moji-ku, Kitakyushu-shi, Fukuoka-ken 801-0863 | +81 93 3311738 | www.iinobussan.jp | | |
| 16230 | Japan | Iizuka Electric Industry Co., Ltd. | 1 Chome-4-12 Juzenji, Chuo-ku, Kumamoto-shi, Kumamoto-ken 860-0824 | +81 96 3262345 | www.iizuka-denki.co.jp | | |