The Ecozzeria Association is an intermediary support system established on the basis of a partnership with businesses and working people etc. The activities of Ecozzeria, the environmental strategy center run by the association, include promoting cooperation between industry, the administration, academia and the community, propagating and transmitting ecological know-how and content, and holding events.
The Otemachi Marunouchi Yurakucho District Redevelopment Project Council This organization was founded by local landowners in 1988 with the redevelopment of the OMY district as its purpose. It currently has 95 companies and organizations as its members. They work towards a new kind of urban development to create a more attractive city.