Slayer Organization

"[A] few key Sunnydale alum have been tracking down the recently chosen... uh, guiding them, training them... giving them the full X-Men, minus the crappy third act."

- Andrew Wells

The Slayer Organization was an institution founded by the Scooby Gang to gather and train the new-activated Slayers following the Battle at the Hellmouth. Led by Buffy Summers, the organization included approximately five hundred Slayers split across ten separate squads, as well as mystics and other vampire hunters.

History
The organization was founded in the aftermath of the Battle at the Hellmouth, during which Willow Rosenberg used the power of the Scythe to activate every Potential Slayer across the world. Buffy Summers had decided to share her power with the Potentials in order to defeat The First Evil. Following their victory at the Hellmouth, she and her friends spread out around the world to locate and train the Slayers they were now responsible for.

Scotland

 * Buffy Summers (squad leader)
 * Xander Harris (Watcher)
 * Dawn Summers
 * Leah
 * Rowena
 * Renee (deceased)

Rome

 * Andrew Wells (squad leader/Watcher)
 * Buffy Summers (Rome decoy)
 * Simone Doffler (went rogue)
 * Posey (deceased)

St. Petersburg, Russia

 * Rupert Giles (unofficial squad leader)

Cleveland

 * Robin Wood (squad leader)

Manhattan

 * Violet (squad leader)

Chicago

 * Rona (squad leader)
 * Rupert Giles (Watcher)
 * Buffy Summers (underground decoy) (deceased)
 * Simone Doffler (formerly)

Tokyo

 * Satsu (squad leader)
 * Aiko (deceased)
 * Ayumi
 * Malita

Barcelona

 * Donna

Miscellaneous Slayers

 * Dana (incapacitated due to mentall illness)
 * Nisha (went rogue)
 * Buffy Summers (underground decoy) (deceased)
 * Kira
 * Various others

Affiliates
Willow Rosenberg and Kennedy were members of the organization, but had no permanent base of operations. Rupert Giles was also a member, travelling between squads to teach the young Slayers about their legacy. Faith Lehane was a loose associate, performing black op-style missions at the behest of Wood and Giles. Giles and Faith eventually founded their own splinter group dedicated to finding and aiding rogue Slayers.