Argentina | Juegos & Co. S.R.L | Mr. Juan Poniachik |
Bangladesh | Daily Prothom Alo | A B M Jabed Sultan Pias |
Brazil | Editora Ortogonal Ltda. | Daniel Fonseca Lavouras, Fernando Akeo Naganawa |
Bulgaria | Mensa - Bulgaria | Deyan Razsadov |
China | Beijing Media Network | George Wang, Li Ying, Mr. Peng Jin |
Chinese Taipei | Taiwan Sudoku Association | Mr. Oddest Wu |
Croatia | Hrvatski Zagonetacki Savez | Mladen Mestrovic, Pero Galogaza |
Czech Republic | Hrácská asociace logických her a sudoku, o.s. (HALAS) | Mr. Karel Tesar, Vítezslav Koudelka |
Estonia | As Kuma | Jaanus Laidna |
Finland | Suomen puzzle-harrastajat Ahaa! | Mr. Juha Hyvönen |
France | Federation Francaise des Jeux Mathematiques | Jean-Christophe Novelli, Michel Criton |
Germany | Logic Masters Deutschland e.V. | Johannes Susen, Ulrich Voigt |
Greece | Mensa Greece | Christos Apostolidis |
Hungary | Rejtvényfejtők Országos Egyesülete | György István |
India | Logic Masters India | Mr. Amit Sowani |
Italy | Nonzero srl | Alberto Rossetti |
Japan | Japan Puzzle Federation | Yuhei Kusui |
Korea | Korea Creative Puzzle Association | John HC Park, Mr. J. B. Park |
Netherlands | WCPN | Hans Eendebak |
New Zealand | Aotearoa Puzzles Limited | Jordan Hamel |
Philippines | Mathematics Trainers' Guild (Philippines) | Dr. Simon L. Chua |
Poland | Fundacja Rozwoju Matematyki Rekreacyjnej SFINKS | Mr. Tomasz Krajewski |
Romania | Asociatia ''Logic Club'' Romania | Stelian-Radu Cacuci |
Russia | Planet of puzzles | Andrey Bogdanov |
Serbia | Savez zagonetaca Srbije (SZS) | Zoran Tanasic |
Slovakia | Slovenský zväz hádankárov a kríovkárov | Blanka Lehotská, Ján Farka |
Switzerland | Swiss Puzzle Federation | Markus Roth |
Turkey | Akil Oyunlari Ltd. Sti. | Kamer Alyanakyan |
United Arab Emirates | Rootstalk Learning Solutions FZ-LLC | Gaurav Singla |
United Kingdom | UK Puzzle Association | Alan O'Donnell |
Uruguay | Gimnasio Mental TECA - Grupo Ingenio Uruguay | Mrs Débora Saviotti |
USA | U.S. Puzzle Championship | Nick Baxter |