The official Japanese name of the organisation is Shin Shin Toitsu Aikido Kai (心身統一合気道会), but it is often referred to as the "Ki Society" in western countries. Tohei's form of Aikido is correctly called Shin Shin Tōitsu-dō (心身統一道), meaning "the way of realising unity of mind and body", but as with the name of the organisation the martial discipline of the art is referred to as Ki-Aikido in the Western world.
The Ki Society hombu dojo resides in Tochigi Prefecture, Japan
Interestingly, Shin Shin Toitsu Aikido Kai organises a national competition every year at the hombu dojo in Japan, and every four years a World Taigi Competition is held there. Similar to "Embu Open Kata" competition in the Tomiki aikido World, various techniques are grouped into 31 sets of about 6 throws, each of which are called a 'Taigi', often based around a specific attack and theme. Players perform several taigi. The competition measures the tori's form and movement with uke and points are awarded. Judges award points for size, rhythm, calmness, balance, and the use of ki.