OSA, Social Design Group, based in Japan and Kenya, promotes and engages in social business development. It is acts as a “rainbow link”of development that bridges Japan and Kenya under the motto “seeds from Japan to be realized in Kenya.”

OSA started in 2010 as a project entitled the “Rainbow Project”, a vehicle used to share, transfer and manage experiences and networks between Japan and Kenya. The “rainbow” symbolizes unlimited possibilities between a person and a person and a country and a country.