| ARMENIA | AATA | | | |
| AUSTRIA | ÖATA | oeata.at
| Österreichweiter Verein von Tiefenpsychologischen Transaktionsanalytikern/innen | |
| AUSTRIA | ITAP | | | |
| AUSTRIA | ÖGTA | transaktionsanalyse.at/
| Österreichische Gesellschaft für Transaktionsanalyse | REgina Nemeth |
| BELGIUM | ASSOBAT | assobat.be/
| Association Belge d'Analyse Transactionnelle | Tin Vanderhoeven |
| BELGIUM | VITA | vita-vitaal.be | | Tin Vanderhoeven |
| BOSNIA | BIHOTA | | | |
| BULGARIA | BATA | batanews.org | Българска асоциация за транзакционен анализ | Sezgin Bekir |
| CROATIA | UTA | uta.hr | Udruga Transakcijske analize | Ana-Marija_Vidjak |
| CZECH REPUB. | CATA | ta-cata.cz | Česká asociace transakční analýzy | Kristyna Tomanová |
| FINLAND | FINTA | finta.net | Suomen Transaktioanalyysiyhdistys | Ritva Piiroinen |
| FRANCE | IFAT | ifat-asso.org | Institut Français d’Analyse Transactionnelle | Olivier Montadat |
| GEORGIA | TAAG | tageorgia.ge | Transactional Analysis Association of Georgia | Dali Bregvadze |
| GERMANY | DGTA | dgta.de/transaktionsanalyse/ | Deutsche Gesellschaft für Transaktionsanalyse | Nicole Lenner |
| HUNGARY | HATA | hata.hu | Magyar Tranzakcióanalitikus Egyesület | |
| ITALY | CPAT | centropsi.it/cpat/ | Associazione Nazionale di Analisi Transazionale | Mara Scoliere |
| ITALY | AIAT | aiat.it | Associazione Italiana di Analisi Transazionale | Simonetta Caldarone |
| ITALY | AUXIMON (SIAT) | | | Mara Scoliere |
| ITALY | IANTI | ianti.it | Istituto di Analisi Transazionale Integrativa | Mara Scoliere |
| ITALY | IAT | istitutoanalisitransazionale.it | Istituto di Analisi Transazionale | Mara Scoliere |
| ITALY | IRPIR (SIAT) | irpir.it | Istituto di Ricerca sui Processi Intrapsichici e Relazionali | Mara Scoliere |
| ITALY | Inperformat | inperformat.it | Associazione Culturale di Analisi Transazionale | |
| ITALY | SIMPAT | simpat.org | Società Italiana di MetodologiePsicoterapeutiche e Analisi Transazionale | Simonetta Caldarone |
| KAZAKHSTAN | TADO | | | Elina Belyayeva |
| KAZAKHSTAN | Alma-TA | | | |
| KYRGYSTAN | APTAK | transactionalanalysiskg.blogspot.com | | Indira Dildabayeva |
| MACEDONIA | MATA | | | Nadica Kostoska |
| MONTENEGRO | MonTA | | | Nebojsa Zizic |
| NETHERLANDS | NVTA | nvta.nl | Nederlandse Vereniging voor Transactionele Analyse | Eva van der Randen |
| NORWAY | NTAF | transaksjonsanalyse.com | Norsk Transaksjonsanalytisk Forening | |
| Poland | PTAT | ptat.pl | Polskie Towarzystwo Analizy Transakcyjnej | Joanna Januszewska |
| ROMANIA | ARAT | arat.ro | Asociaţia Română de Analiză Tranzacţională | Sorina Vrană |
| RUSSIA | SITA | sitanews.ru | Санкт-Петербургская Организация Транзактного Анализа (СОТА) | Elena Soboleva |
| SERBIA | SATA | | | Aleksandra Duric |
| SERBIA | TAUS | taus.rs | | Aleksandra Duric |
| SLOVENIA | SLOVENTA | sloventa.si | Društvo za transakcijsko analizo Slovenije | Jana Sustersic |
| SPAIN | APPHAT | apphat.es | Asociación de Profesionales de Psicología Humanista y Análisis Transaccional | Sara Foschi |
| SPAIN | ATA | atainfo.org | Asociación de Análisis Transaccional | Sara Foschi |
| SWEDEN | STAF | transaktionsanalys.se | Svenska transaktionsanalytiska föreningen | Anette Johansson |
| SWITZERLAND | SGTA/ASAT(D) | dsgta.ch/ueber-uns/sgta-asat/ | Schweizerische Gesellschaft für Transaktionsanalyse SGTA | Michael Kercher |
| SWITZERLAND | SGTA/ASAT(SR) | asat-sr.ch/association/ | | Valérie Cionca |
| TURKEY | ATAD | atadturkiye.org | Avrasya Transaksiyonel Analiz Derneği | Deniz Güney |
| UK | UKATA | uka4ta.co.uk | UK Association for Transactional Analysis | Beren Aldridge |
| UK | IARTA | relationalta.com | International Association of Relational Transactional Analysis | Beren Aldridge |
| UK | STAA | scottishta.org.uk | Scottish Transactional Analysis Association | Beren Aldridge |
| UKRAINE | UATA | uata.org.ua | Українська асоціація транзакційного аналізу | Iryna Tepalenko |
| UKRAINE | USTA | usta.org.ua | Українська Спільнота Транзакційного Аналізу (УСТА) | Anastasiia Horokhivska-Moroz |
