| ● Government and Municipal Offices |
| Printing Bureau, Ministry of Finance |
| The Bank of Japan |
| Microorganism Industrial Technology
Institute, Ministry of Health and Welfare |
| National Institute of Preventive Hygiene, Ministry of Health and Welfare |
| Chiba Prison, Ministry of Justice |
| Kahokugata Reclamation Work Construction Office, Ministry of Agriculture, Forestry, and Fisheries |
| Tsukuba Office, Ministry of Agriculture, Forestry, and Fisheries |
| Energy Center, The Agency of Industrial Science and Technology |
| Kinki prefecture Construction Bureau, Ministry of Construction |
| Vessel technology Institute, Ministry of Transportation |
| Japan Atomic Energy Research Institute
|
| Japan Housing Corporation |
| Japan Railway Construction Public Corporation |
| ＪＲ East Japan |
| ＪＲ Kyushu |
| ＪＲ Tohoku |
| Japan Railway Public Corporation |
| Teito Rapid Transit Authority |
| ● Hokkaido |
| Water Service Department, Tomakomai-shi |
| Waterworks Department, Hakodate-shi |
| Waterworks Department, Shibetu-shi |
| and 5 more organizations |
| ● Aomori |
| Waterworks Section, Kuroishi-shi |
| Waterworks Section, Misawa-shi |
| Waterworks Section, .Mutsu-shi |
| Waterworks Section, Hirosaki-shi |
| Waterworks Section, Tsuruta-shi |
| Waterworks Office, Towada-shi |
| and 6 more organizations |
| ● Akita |
| Waterworks Bureau, Akita-shi |
| Waterworks Bureau, Omagari-shi |
| Business Section, Oga-shi |
| and 4 more organizations |
| ● Iwate |
| Waterworks Office, Ichinoseki-shi |
| Waterworks Office, Hanamaki-shi |
| Drainage Office, Kitakami-shi |
| Waterworks Office, Ohunado-shi |
| and 5 more organizations |
| ● Yamagata |
| Waterworks Department, Yamagata-shi |
| Waterworks Department, Tsuruoka-shi |
| Waterworks Department, Sakata-shi |
| Waterworks Section, Shinjou-shi |
| Waterworks Section, Nagai-shi |
| Mogami River Central Waterworks Office |
| Obanazawaoishida Waterworks Office |
| Numagi Hygiene disposal Plant, Yamagata-shi |
| and 1 more organization |
| ● Miyagi |
▲ TOP |
| Waterworks Bureau, Sendai-shi |
| Waterworks Office, Tagajou-shi |
| Hot spring Office, Shiraishi-shi |
| and 4 more organizations |
| ● Fukushima |
| Waterworks Department, Fukushima-shi |
| Business Department Waterworks Section, Haramachi-shi |
| Waterworks Office, Shirakawa-shi |
| Waterworks Office, Souma-shi |
| Waterworks Section, Shiokawa-cho |
| Hygienic Disposal Plant, Ishikawa |
| Housing Supply Public Corporation |
| and 11 more organizations |
| ● Niigata |
| Waterworks Bureau, Niigata-shi |
| Gas and Waterworks Bureau, Tsubame-shi |
| Gas and Waterworks Bureau, Tochio-shi |
| Gas and Waterworks Bureau, Kochiya-shi |
| Waterworks Bureau, |
| Nakanojima Land Improvement Division |
| and 9 more organizations |
| ● Ibaragi |
| Waterworks Department, Mito-shi |
| Water Supply and Drainage Department, Yuki-shi |
| Waterworks Department, Hitachinaka-shi |
| Environmental Preservation Section,
Tsuchiura-shi |
| Waterworks Section, Kasama-shi |
| Waterworks Section, Iwai-shi |
| Waterworks Section, Ryugasaki-shi |
| Shirone Final Sewage Disposal Plant,
Toride-shi |
| Waterworks Section, North Ibaragi-shi |
| Waterworks Section, Akeno-shi |
| and 20 more organizations |
| ● Gunma |
| Kumakura Power Station, Business Bureau |
| Waterworks Bureau, Maebashi-shi |
| Waterworks Bureau, Takasaki-shi |
| Waterworks Bureau, Ota-shi |
| Waterworks Bureau, Kiryu-shi |
| Waterworks Section, Fujioka-shi |
| Waterworks Section, Isesaki-shi |
| and 12 more organizations |
| ● Tochigi |
| Waterworks Bureau, Utunomiya-shi |
| Waterworks Bureau, Sano-shi |
| Waterworks Department, Tochigi-shi |
| Waterworks Department, Ohira-shi |
| Waterworks Section, Kanuma-shi |
| Waterworks Section, Oyama-shi |
| Waterworks Section, Ashikaga-shi |
| Waterworks Section, Maoka-shi |
| Waterworks Section, Ichikai-shi |
| Waterworks Section, Yaita-shi |
| Water Supply and Drainage Business
Organization, Central Houga |
| Housing Supply Public Corporation Kamikake Building |
| and 18 more organizations |
