The Nine Ryu of Bujinkan Budo Taijutsu

Togakure Ryu Ninpo:  Hidden Door School

Gyokko Ryu Koshijutsu:  Jeweled Tiger School

Koto Ryu Koppojutsu:  Tiger Felling, or Tiger Knocking Down School

Shinden Fudo Ryu:  Immovable Heart School

Gyokushin Ryu Ninpo:  Jeweld Heart School

Kumogakure Ryu Ninpo:  Hiding In The Clouds School

Kukinshinden Ryu Hoppo Bikenjutsu:  Nine Demon God's School

Gikan Ryu Koppojutsu:  Truth, Loyalty, and Justice School

Takagi Yoshin Ryu Jutaijutsu:  High Tree Raised Heart School

Here is a link to the Bujinkan Lincoln Dojo , they have excellent coverage of the Bujinkan history, lineage. and biographies, of the Bujinkan.