Organization

Ahnenerbe
This unnamed nazi group is based on the real-life esoteric nazi organization of the same name. They appear in "Tales of The Ex-Mortis" and maybe in "Evil dead 2 revenge of the evil Ed".

Ceutotech
This medical organization is the main antagonist of "Hack/Slash" they study the immortality of the Slashers.

Crystal lake research facility
This governmental group has been created on an unknown date to study and hunt Jason Voorhees. This group could be a sub-branch of the F.B.I. featured in "Jason Goes to hell", with Agent Marcus, a possible relative to Agent Marcus from "Jason X". This group first appeared in"Jason X", the captured Jason in 2007 at the end of "Freddy vs Jason vs Ash". "Freddy vs Jason vs Ash:Nightmare Warriors" features a possible subbranch with the Black Book project who study the Necronomicon to control Freddy and Jason, created a group of survivors and ex-members of the Dream Warriors (almost) lead by Ash Williams.

the Cult of Chucky
This cult is composed of every body possessed by Chucky, apart Tiffany and Alice Pierce, in the movie "Cult Of Chucky".

Favorite Servant of the Serpent
This terrorist organization is an occult branch of al Qaida, featured in the comics "Evil Dead 2: Tales of the Necronomicon Ex-Mortis" and maybe in "Evil Dead 2: Revenge of Evil Ed".

Garden Dwarf Liberations Army
This unknown militia is featured in " The Death of Ash", and is based on real-life "Garden Dwarf liberation front". They could protect the Living Dolls from the comics "Chucky Night of the Living Doll".

Order Of The Illuminati
This occult group controls the U.S.A. and Leatherface's family. They appear in "Texas chainsaw massacre 4", are mentioned in "Bubba Ho-Tep" and are central in the plot of "Bubba Ho-Tep: Cosmic BloodSucker". The most notable things that they do is killing JFK, and replace his skin, they have a collection of synthetic skin.

Silver Shamrock
This Evil group of Irish cultist toymakers appears in "Halloween III", and try to manipulate the world with their Celtic magic and their Android. This organization could be linked to Hellraiser mythos because both franchises had evil toymaker (and are owned by the way by Dimension films)

Trent
Multinational which would like to use Jason Voorhees in "Fearbook". This comic is a prequel of "Jason X".

Aeon Fraternity
This esoteric group is formed by high intellectual or mathematicians, they study and try to summons the Great old ones. They appear in the comics "Cradle of the Damned".

Alive
This militia is featured in the future of Dynamit's entertainment "Furious Road". This group is the survivor of the deadites apocalypse, this group is constituted by the Daughter of Dracula, Werewolves, a witch, Frankenstein's monster, gargoyles, brides of Dracula, Christians, and Ash Williams.

Area 54
This governmental organization is based on the real-life "Area 51", it appears in "Evil Dead 2: Revenge of the Martians", they study paranormal beings like Sasquatch or the Necronomicon, all the members of this organization are dressed up like in seventies.

Army of light
This group appears in "Army of Darkness vs Army of light", and has been created to protect the world from Hell's Prophet, this group exists through different ages, all the member represent a continent, the modern age has An angel, for Asia, the progeny of the Rainbow Snake (a were snake who can duplicate his size) for Australia, a necromancer (actually she cannot reanimate somebody, she can talk or summons spirit), for Europ, An American Werewolf, an African pyrokinetist, a superhero for Antarctica and obviously the Chosen one.

Brotherhood of Sanit-George
A secret Christian organization, based on the legendary Dragon killer Saint George. They try to protect the earth from monsters, the most known members is Frankenstein's monster. This group is mentioned in "Furious Road".

Dream Warrior
Group of teenagers with dream power features in "A Nightmare on Elm Street" saga.

Knight of Sumer
This group of knights work for centuries to protecting the earth from the Kandarian Demon and are lead by the Chosen One. This group appears in the third season of "Ash Vs Evil Dead"

Hack/Slash, inc
The organization is a group made by Cassie Hack and Vlad to hunt the Slasher, in the comics series Hack/Slash. This organization had a website and [https://hackslash.fandom.com/wiki/Category:Hack/Slash,_Inc. many members] like Ash Williams.

Harrower
This group is the saint group, the major antagonist of the Cenobites. The members are human chooses by Morte Mamme to defeat the Leviathan.

T.A.R.D.
This Organization is the slasherverse counterpart of the B.P.R.D. from Hellboy. This organization first appeared in "Home Sweet Hell", they protect the earth from the paranormal menace. Another terrorist branch Called the "Eradicator", appears in "Army of Darkness Vs Army" are made to protect the chosen one from the Army of light, this group had a telepath, a hypnotist, a demonologist, the director of the T.A.R.D., and character from "Hellbillies and Deanecks".

Truthseeker.com
This website appears in "Ash For president ", this website is a slasherverse counterpart of any complotiste website.

Vatican
This country appears in "hellraiser Bestiary", they are closed to the real-life Italian city apart, their hunt against the cenobites, they fund African militia to kill Pinhead, and have his nails for the Tresor room of the Vatican.