Standard members

Supporting members

Participating municipalities

• Mie Prefecture, Eikei Suzuki (Governor)
• Hiroshima Prefecture, Hidehiko Yuzaki (Governor)
• Kumamoto Prefecture Ikuo Kabashima (Governor)
• Nagano Prefecture, Shuichi Abe (Governor)
• Okayama Prefecture, Ryuta Ibaragi (Governor)
• Saitama Prefecture, Kiyoshi Ueda (Governor)
• Ehime Prefecture, Tokihiro Nakamura (Governor)
• Chiba City, Toshihito Kumagai (Mayor)
• Fukuoka City, Soichiro Takashima (Mayor)
• Fukuyama City, Naoki Edahiro (Mayor)
• Hamamatsu City, Yasutomo Suzuki (Mayor)
• Ina City, Takashi Shirotori (Mayor)
• Kamakura City, Takashi Matsuo (Mayor)
• Nara City, Gen Nakagawa (Mayor)
• Nichinan City, Kyohei Sakita (Mayor)
• Odawara City, Kenichi Kato (Mayor)
• Onomichi City, Yuko Hiratani (Mayor)
• Tsukuba City, Tatsuo Igarashi (Mayor)
• Yamagata City, Takahiro Sato (Mayor)
• Zushi City, Ryuichi Hirai (Mayor)
• Toyota City, Toshihiko Ota (Mayor)
• Numata City, Koichi Yokoyama (Mayor)
• Toyama City, Masashi Mori (Mayor)
• Kuwana City, Narutaka Ito (Mayor)
• Minamisoma City, Kazuo Momma (Mayor)
• Kumano City, Kanji Kawakami (Mayor)
• Assabu-cho, Masami Shibuta (Mayor)
• Hakone-machi, Nobuo Yamaguchi (Mayor)
• Hayama-machi, Takahito Yamanashi (Mayor)
• Jinsekikogen-cho, Yoshinori Irie (Mayor)
• Ohnan-cho, Ryoji Ishibashi (Mayor)
• Suo-oshima-cho, Takumi Shiiki (Mayor)
• Minokamo City, Seiichi Ito (Mayor)
• Kobayashi City, Yoshihisa Miyabara (Mayor)
• Nakano City, Shigeru Ikeda (Mayor)
• Yokkaichi City, Tomohiro Mori (Mayor)
• Minamiashigara City, Shuhei Kato (Mayor)
• Yonezawa City, Masaru Nakagawa (Mayor)
• Saga City, Toshiyuki Hideshima (Mayor)
• Takamatsu City, Hideto Onishi (Mayor)
• Shima City, Chihiro Takeuchi (Mayor)
• Nagaokakyo City, Kengo Nakakoji (Mayor)
• Sanjo City, Isato Kunisada (Mayor)
• Osaki City, Yasushi Ito (Mayor)
• Oyama City, Toshio Okubo (Mayor)
• Takayama City, Michihiro Kunishima (Mayor)
• Maebashi City, Ryu Yamamoto (Mayor)
• Maizuru City, Ryozo Tatami (Mayor)
• Bizen City, Takao Tahara (Mayor)