| Austria |
| Austria Wirtschaftsservice Gesellschaft mbH (AWS) http://www.awsg.at |
| Azerbaijan |
| INEPO EUROASIA http://www.inepo-euroasia.com |
| Belarus |
| Минский государственный Дворец детей и молодежи (MDDM) http://www.mddm.org |
| Belgium |
| Jeunesses Scientifiques de Belgique (JSB) http://www.jsb.be |
| Euro Space Center (ESC) http://www.eurospacecenter.be |
| Les Petits Débrouillards de Belgique http://www.lespetitsdebrouillards.be |
| Jeugd, Cultuur en Wetenschap (JCW) http://www.jcweb.be |
| Bulgaria |
| Evrika Foundation http://www.evrika.org |
| Czech Republic |
| Asociace malých debrujárů České Republiky http://www.debrujar.cz |
| Národní institut detí a mládeže (NIDM) http://www.nidm.cz |
| Sdružení na podporu talentované mládeže Ceské republiky, o. s. (SNPTM) http://www.snptm.cz |
| Asociace Středoškolských Klubů České Republiky (ASK CZ) http://www.askcr.cz |
| Středisko společných činností AV (SSC) http://www.ssc.cas.cz |
| Denmark |
| Unge Forskere (UF) http://www.unge-forskere.dk |
| Ungdommens Naturvidenskabelige Forening (UNF) http://www.unf.dk |
| Estonia |
| HuviAlaKeskuste Kogu (HAKK) |
| Archimedes Foundation (AF) http://www.archimedes.ee |
| France |
| Collectif Inter-Associatif pour la Réalisation des Activités Scientifiques, Techniques et Internationales (CIRASTI) http://www.cirasti.org |
| La Réunion - Association Nationale des Centres de culture Scientifique, Technique et Industrielle (CCSTI) http://www.ccsti.fr |
| Planète Sciences (PS) http://www.planete-sciences.org |
| La Ligue de l'Enseignement (LE) http://www.laligue.org |
| Germany |
| Landesverband Sächsischer Jugendbildungswerke e.V. (LJBW) http://www.ljbw.de |
| juForum e.V. http://www.juforum.de |
| Greece |
| The Thessaloniki Science Center and Technology Museum (NOESIS) http://www.noesis.edu.gr |
| Hellenic Association of Informatics (HAI) http://www.informatics.org.gr |
| Hungary |
| TIT Kossuth Klub http://www.kossuth-klub.hu |
| Italy |
| Federazione delle Associazioni Scientifiche e Tecniche (FAST) http://www.fast.mi.it |
| Latvia |
| Valsts izglītības satura centrs (VISC) http://www.visc.gov.lv |
| Youth Foundation "Vertikale" (YFV) |
| Lithuania |
| Lietuvos mokinių neformaliojo švietimo centras (LMNSC) http://www.lmnsc.lt |
| Lietuvos Gamtos Mokslų Olimpiadų Asociacija (LGMOA) http://lgmoa.olimpiados.lt |
| Luxembourg |
| Fondation Jeunes Scientifiques Luxembourg (FJSL) http://www.jonk-fuerscher.lu |
| Malta |
| National Student Travel Foundation (NSTF) http://www.nstfmalta.eu |
| Malta Council for Science and Technology (MCST) http://www.mcst.gov.mt |
| Netherlands |
| Cosmicus Foundation (CF) http://www.cosmicus.nl |
| Norway |
| Unge Forskere |
| Poland |
| Fundacja Zaawansowanych Technologii http://www.fzt.org.pl |
| Portugal |
| Associação Juvenil de Ciência (AJC) http://www.ajc.pt |
| Fundação da Juventude (FJ) http://www.fjuventude.pt |
| Romania |
| Collegium "Vasile Alecsandri" Foundation (CNVA) |
| Center for Science Education and Training (CSET) http://education.inflpr.ro |
| Dimitrie Bolintineanu High School (DBHS) http://www.bolintineanu.ro |
| CYGNUS Scientific Society (CSS) http://www.cygnus.ro |
| Center for Complexity Studies (CCS) http://www.complexity.ro |
| Russia |
| MILSET Russia - VVCenter |
| All-Russia Movement of creative teachers “Researcher” (OODI) http://www.oodi.ru |
| Moscow City Centre for Children and Youth Creativity (MGDD(U)T) http://www.redu.ru |
| Step into the Future (SITF) http://www.step-into-the-future.ru |
| Science Center Intellect (SCI) http://www.intellect-dt.ru |
| Moscow State Pedagogical University (MSPU) http://www.mpgu.edu |
| Serbia and Montenegro |
| Petnica Science Center (PSC) http://pi.petnica.rs |
| Slovakia |
| Asociácia pre mládež, vedu a techniku (AMAVET) http://www.amavet.sk |
| Vedecka Hracka (VH) http://www.vedeckahracka.sk |
| Obcianske združenie Mladí vedci Slovenska (SAYS) http://www.eucontest.sk |
| štátny inštitút odborného vzdelávania (SIOV) http://www.siov.sk |
| Slovenia |
| Zveza za tehnično kulturo Slovenije (ZOTKS) http://www.zotks.si |
| Spain |
| Instituto de Investigaciones científicas y Ecológicas (INICE) http://www.inice.es |
| Associació per promoure la Recerca Jove (MAGMA) http://www.magmarecerca.org |
| Instituto de Ciencia e Investigación Juvenil de Aragón (ICIJA) http://icija.org |
| Sweden |
| Förbundet Unga Forskare (FUF) http://www.fuf.org |
| Switzerland |
| Foundation Swiss Youth in Science (FSYS) http://www.sjf.ch |
| United Kingdom |
| Educational Cultural Exchanges (ECE) http://www.liysf.org.uk |