The Magical Congress of the United States of America (MACUSA) is the governmental authority for the Wizarding world in the USA (Pm, WFT). The headquarters of MACUSA is hidden in the Woolworth Building. The emblem of MACUSA features an American flag combined with a phoenix (WFT). MACUSA is a single body, unlike the Muggle two party system (JKR:Tw). The president in 2014 was Samuel G. Quahog (Pm). The MACUSA employs Aurors, just like the Ministry of Magic does in the UK. One of those Aurors in the early 20th Century was Graves (WFT).
Advance Guard Brotherhood of Goblins (B.O.G.) Campaign for Greater Freedom for Wizards Dark Force Defense League Death Eaters Department of Magical Law Enforcement (MACUSA) Duelling Club Dumbledore’s Army (D.A.) Fresh Air Refreshes Totally (F.A.R.T.) Ghosts Council at Hogwarts Goblin Rights groups Hogwarts Board of Governors Inquisitorial Squad International Association of Quidditch International Confederation of Wizards (I.C.W.)
International Confederation of Wizards Quidditch Committee (I.C.W.Q.C.) International Symposium of Animagi Magical Congress of the United States of America Major Investigation Department Medieval Assembly of European Wizards Ministry of Magic Most Extraordinary Society of Potioneers Mudblood Death Camps National Gobstone Association Opposition Order of Merlin Order of the Phoenix Quidditch Union for the Administration and Betterment of the British League and its Endeavors (Q.U.A.B.B.L.E.) Rotfang Conspiracy Salem Witches’ Institute
Scourers Second Salem a.k.a. New Salem Philanthropic Organization Second Salemers Silver Spears Slug Club Society for Distressed Witches Society for the Promotion of Elfish Welfare (S.P.E.W.) Society for the Reformation of Hags Society for the Support of Squibs (S.S.S.) Society for the Tolerance of Vampires (S.T.V.) Troll Rights Movement Wizarding Supporters of Scottish Rugby Union (W.S.S.R.U.) Wizards’ Council