Alternatively you may wish to consider Aikido Yuishinkai UK (thats who I practice with)
Aikido Yuishinkai is the organisation headed by Koretoshi Maruyama Sensei (formerly the chief in structor of the ki no kenkiyukai under Koichi Tohei Sensei).
Other Ki Aikido organisations in the UK are:
The Ki Federation of GB (under Ken Williams Sensei)
The Ki Society (under Koichi Tohei Sensei)
KI No Kenkyukai Association International (under Yoshigazaki Sensei)
Kolesnikov mind and body development (under Wasyl Kolesnikov Sensei)
Hope this helps