In Japan Yakuza members must register with the police, and the Yakuza families are treated like corporations. Kanto Rengo has more than 3,000 members and operat

In Japan Yakuza members must register with the police, and the Yakuza families are treated like corporations. Kanto Rengo has more than 3,000 members and operates in alliances with traditional Yakuza. I guess it depends on the definition of Yakuza, if you mean the officially registered organizations with registered members then no they aren't. But if you mean a large criminal organization of Japanese people, I think its safe to say they are. Its also not uncommon for Yakuza groups like Yamaguchi-gumi to "acquire" a "gang" like Kanto Rengo and turn them into their regional office.