Group Companies and Agencies
| Hokkaido | Miwa Electronics Industry Inc. Hakodate Branch TEL 0138 (40) 8931 |
| Miyagi | Hitachi hitech Trading Inc. Tohoku Branch TEL 022 (264) 2215 Dowatechnos Inc. Tohoku Office TEL 022 (295) 6191 |
| Fukushima | Ninotech Inc. TEL 0249 (35) 1700 |
| Tochigi | Nisshinn Kogyo Inc. TEL 028 (627) 7571 Fujii Sangyo Inc. TEL 028 (662) 7100 |
| Gunma | Fujita Engineering Inc. TEL 027 (361) 1111 |
| Toyama | Hitachi Sankishisutem Inc. TEL 076 (420) 5411 |
| Ishikawa | Meikyo Electronics Inc.. Hokuriku Office TEL 076 (225) 3067 |
| Shizuoka | Neta Water Inc. Shizuoka Office. TEL 054 (280) 6671 |
| Aichi | Meisan Industry Inc. TEL 052 (744) 1311 |
| Osaka | Dowatechnos Inc. Osaka branch TEL 06 (6889) 3151 |
| Wakayama | Dowatechnos Inc. Wakayama Office. TEL 073 (425) 3061 |
| Okayama | NIchiden Shoukou Inc. Kurashiki Office. TEL 086 (525) 6603 |
| Hiroshima | Nihon sokki Inc. TEL 082 (263) 0403 Kitahama Seisakusyo Inc. Hiroshima Office. TEL 082 (264) 1877 |
| Yamaguchi | Kitahama works Tokuyama Office TEL 0834 (22) 0606 Yamaichi Denki Inc. Tokuyama Office TEL 0834 (63) 1535 |
| Ehime | Dowatechnos Inc. Araihana Office TEL 0897 (37) 3451 |
| Fukuoka | Dowatechnos Inc. TEL 093 (621) 4131 |
| Saga | Yamatake & Co. Torisu Office TEL 0942 (84) 4331 |
| Nagasaki | I.T.I. Inc. TEL 095 (833) 0211 |
| Oita | Yanai Electronics Industry Inc. TEL 097 (537) 5370 Okazaki Industry Inc. Oita Office TEL 097 (552) 1511 |
