|Yamaguchi-gumi (六代目山口組Rokudaime Yamaguchi-gumi?)||The Yamaguchi-gumi is the biggest yakuza family, accounting for 50% of all yakuza in Japan, with more than 55,000 members divided into 850 clans. Despite more than one decade of police repression, the Yamaguchi-gumi has continued to grow. From its headquarters in Kobe, it directs criminal activities throughout Japan. It is also involved in operations in Asia and the United States.Shinobu Tsukasa, also known as Kenichi Shinoda, is the Yamaguchi-gumi’s current oyabun. He follows an expansionist policy, and has increased operations in Tokyo (which has not traditionally been the territory of the Yamaguchi-gumi.)The Yamaguchi family is successful to the point where its name has become synonymous with Japanese organized crime in many parts of Asia outside Japan. Many Chinese or Korean persons who do not know the name ”Yakuza” would know the name ”Yamaguchi-gumi”, which is frequently portrayed in gangster films.||”Yamabishi” (山菱)|
|Sumiyoshi-kai (住吉会?)||The Sumiyoshi-kai is the second largest yakuza family, with 20,000 members divided into 277 clans. Sumiyoshi-kai is a confederation of smaller yakuza groups. Its current oyabun is Isao Seki. Structurally, Sumiyoshi-kai differs from its principal rival, the Yamaguchi-gumi, in that it functions like a federation. The chain of command is more lax, and although Shigeo Nishiguchi is always the supreme oyabun, its leadership is distributed among several other people.|
|Inagawa-kai(稲川会?)||The Inagawa-kai is the third largest yakuza family in Japan, with roughly 15,000 members divided into 313 clans. It is based in the Tokyo-Yokohama area and was one of the first yakuza families to expand its operations to outside Japan. Its current oyabun is Kiyota Jiro.