International
International Quiz Association
UK
Great Britain British Quiz Association, Association of British Quiz Leagues
Scotland: Scottish Quizzers Group
Wales: Welsh Quizzers Group
Europe
Germany: Deutscher Quiz-Verein
Finland: Suomen Tietokilpailuyhdistys ry
Norway: Norges Quizforbund
Romania: Societatea Romana de Trivia
Croatia: Croatian Quiz Association
Serbia: Serbian Quizzing Association
Rest of the World
Australia: Quizzing Australia
Japan: Japan Quizzing Association
Sri Lanka: International Quiz Association: Sri Lanka