AKB48 is named after Akihabara (Akiba for short), the area in Tokyo where, on the 8th floor of a Don Quijote store, the band's own theater is located. Akimoto's idea, later advertised as "idols you can meet", was to create a theater-based idol group whose fans could see the girls live daily. AKB48 still performs at the theater every day, although, due to great demand, tickets are now distributed only via a lottery.
SKE48 is an all-female Japanese theater/idol group produced by Yasushi Akimoto. The audition was held during the summer and debuted in October 2008. SKE48 performs in the newly built studio in the renovated Sunshine Sakae in Nagoya, Aichi Prefecture, every Saturday.
HKT48 is named after the Hakata-ku, Fukuoka ward of Fukuoka Prefecture, where Yasushi Akimoto originally intended to base the group. HKT48's theater is located in Hawks Town Mall in Chūō-ku, Fukuoka.
NMB48 is an all-female Japanese theater/idol group produced by Yasushi Akimoto. The group performs at NMB48 Theater on the basement of Yes-Namba Building in Namba, Osaka.
SDN48 (short for Saturday Night 48) is a Japanese Idol Girl Group, created and produced by Yasushi Akimoto. SDN48 was created based on an "adult idol" concept. Former AKB48 member Kayo Noro was chosen as the captain of the group. In November 2010, the group made their major label debut with "Gagaga".
JKT48 is an Indonesian Idol Group. It is the first AKB48 sister group outside of Japan, and it will be based in Jakarta. The group will adopt AKB48's "idols you can meet” concept, and its overall producer will also be Yasushi Akimoto.