A

• [+] Advocacy groups‎ (1 C, 9 P)

C

• [+] Cliques‎ (1 C, 4 P)
• [+] Clubs‎ (2 C, 15 P)
• [+] Companies‎ (4 C, 88 P)

D

• [+] Death Eaters‎ (5 C, 71 P)
• [+] Dumbledore's Army‎ (1 C, 41 P)

F

• [+] Founder Duels‎ (2 C, 2 P)

I

• [×] Inquisitorial Squad‎ (13 P)

M

• [+] Musical groups‎ (1 C, 13 P)

O

• [+] Order of the Phoenix‎ (5 C, 2 P)

S

• [+] Snatchers‎ (1 C, 14 P)

T

• [+] Teams‎ (3 C)

• Template:Organisation infobox

A

• Académie française des sorciers
• Accionites
• Advocates to the Wizarding World
• Al-Hiraza
• Anti-Terrorism Unit
• Arts Council England
• Astronomy department
• Auror Office
• Azkaban Security Officials and Very Important Wizards

B

• Black Lion Boxing Academy
• British Association of Garden Centres
• British Ministry of Magic
• British Wizard Duelling Association
• British Wizarding Broadcasting Corporation

C

• Children's High Level Group
• Comic Relief (in-universe)
• Comic Relief USA
• Customs

D

• DAF
• Dark Force Defence League
• Death Eaters
• Divination Workshop
• Divinus Haruspex Association of Clairvoyants

D cont.

• Dumbledore's Army

E

• Egyptian Owl Union

F

• Federation Internationale de Quidditch Association
• Fenrir Greyback's Snatcher gang

G

• Gellert Grindelwald's army
• Grand Council

H

• Headless Hunt
• Herbology High Commission
• Hogwarts Board of Governors
• Hogwarts Express Railway Authorities

I

• Inquisitorial Squad
• Institute of Muggle Studies
• International Association of Quidditch
• International Confederation of Wizards
• International Confederation of Wizards' Quidditch Committee
• International Quidditch Association
• International Task Force

K

• Knights of the Round Table

L

• Licensing Wizengamot of Great Britain

M

• Magical Committee of Anti-Hex Operations
• The Medieval Assembly of European Wizards
• Metropolitan Police
• Ministry of Divine Health
• Ministry of Wands

M cont.

• Most Extraordinary Society of Potioneers

N

• National Gobstone Association
• National Health Service
• National Lottery

O

• Official Fire Broomgade
• The Order of Air Voyagers for Intrepid Wizards
• Order of the Phoenix

P

• Pink Flamingos
• Potions Association

Q

• Quidditch Union for the Administration and Betterment of the British League and its Endeavours

R

• Rotfang Conspiracy
• Royal Air Force

S

• Salem Witches' Institute
• Selection Committee
• South East Amateur Youth Boxing Association
• Surrey Gas Board

T

• Troupe of dancing skeletons

U

• Unidentified council in Surrey

W

• Warlocks of Zanzibar
• Weasleys' Wizard Wheezes
• Werewolf army
• Witches' League
• Wizard Card Collectors' Club