Aikido is a Budo (martial art) created by Morihei Ueshiba. After the Founder's passing in 1969, his son Kisshomaru Ueshiba was inaugurated as Aikido Doshu. At present, Moriteru Ueshiba, grandson of the Founder, has succeeded his father as Aikido Doshu.
The Aikikai Foundation, officially recognized by the Japanese government in 1940, was founded in order to preserve and promote the ideals of the true Aikido created by the Founder. As the Aikido World Headquarters, it is the parent organization for the development and expansion of Aikido throughout the world.

Suginami Aikikai (Aikido Club) was established in April, 1987 under the leadership of Shihan Hiroshi Kato, 8th dan, a student of the Founder of Aikido, Morihei Ueshiba.

Kato sensei is widely admired as an Aikidoist not only in Japan but also abroad, and there are affiliated dojos in San Francisco, Danville, and Palo Alto, CA. Also, headquartered in Houston, Texas is the Shudokan Aikido Association which has 6 affiliated dojos in Houston, and other dojos in Corpus Christi, Midland, San Antonio, Victoria, Carthage, Mission, and Laredo, Texas. The Shudokan group also has 5 dojos in northern Mexico affilated as well. All these dojos are affilated with the Suginami Aikikai as branch dojos. Suginami Aikikai also has 40 affiliate dojos in Indonesia with over 60 dojos worldwide that are under Kato Shihan's guidance.

Practice at Suginami Aikikai includes training with the bokken (wooden sword) and jo (staff). The training place is Ogikubo Taiikukan at 3-47-2, Ogikubo, Suginamiku. Go east from the JR station's south entrance and you can reach it within 6-7 minutes by walking.

This is a dojo founded by Joe Rangel, 3rd dan Aikikai in San Antonio, Texas. Joe Rangel Sensei has been very active in Aikido in San Antonio for many years in several dojos and is well known by the Aikido community there. Joe serves on the Board of Directors of the Shudokan Aikido Association and has been teaching at the Shugenkan dojo since 2005.

A dojo in West Texas founded by Dr. John Riggs, 4th dan, a student of Hiroshi Kato Shihan. Aikido of Midland is a member of the Shudokan Aikido Association. Dr. Riggs is also Vice President and Technical Director of the SAA.

Aikido Dojo in Corpus Christi, Texas affiliated with Shihan Hiroshi Kato. The Dojo instructor is Sensei Joel Molina. This dojo is a member of the Shudokan Aikido Association.

This is a large and well established dojo in the city of San Francisco led by Sensei Jimmy Friedman, a student of Shihan Hiroshi Kato, 8th dan

Since 1987 the Dojo has hosted many of the worlds highest ranking Aikido instructors, such as Kato Sensei, Nishio Sensei, Anno Sensei, Sugawara Sensei, Terry Dobson Sensei, and Cottier Sensei to name a few.

An aikido dojo led by Dr. Brian Heery, a student of Hiroshi Kato, 8th Dan.

An aikido dojo led by Scott Berg, a student of Jimmy Friedman Sensei and Shihan Hiroshi Kato.