Federation

Kokoro Dojo is member of the federation “Aikikai Aikido Doushi”. This is url of their websiteThe federation consists of a group of befriended dojos based in the Netherlands.We practice together on a regular basis and organise events together. 
https://aikikai-doushi.nl/

Hombu Dojo

Link to the website of the international Aikikai Aikido Headquarters in Tokyo.
http://www.aikikai.or.jp/eng/

Aidido Nederland

This link will guide you to the website of the Dutch Aikido umbrella organization, who provides for the certification of the teachers and the insurance of the dojo and its members
http://www.aikidonederland.nl/