Pays | Fédération | Fondation | Membres | Affiliation |
| Berufsverband Österreichischer Psychologen/innen | | | |
| Fédération belge des psychologues | | | |
| Bulgarian Psychological Society | | | |
| Croatian Psychological Association | | | |
| Cyprus Psychologists' Association | | | |
| Unie Psychologickych Asociaci CR | | | |
| Dansk Psykologforening | | | |
| Union of Estonian Psychologists | | | |
| Finnish Psychological Association | | | |
| Fédération française des psychologues et de psychologie | | | |
| Föderation Deutscher Psychologenvereinigungen | | | |
| Association of Greek Psychologists | | | |
| Magyar Pszichológiai Társaság | | | |
| The Icelandic Psychological Association | 1954 | 500 | |
| The Psychological Society of Ireland | | | |
| Italian Network of Professional Psychologists Associations INPPA c/o AUPI | | | |
| Latvijas profesionalo psihologu asociacija | | | |
| Berufsverband der Psychologinnen und Psychologen Liechtensteins (BPL) | | | |
| Lithuanian Psychological Association | | | |
| Société luxembourgeoise de psychologie | | | |
| Malta Union & Professional Body of Psychology (MUPP) | | | |
| Nederlands Instituut van Psychologen - NIP | | | |
| Norsk Psykologforening | | | |
| Polskie Towarzystwo Psychologiczne | | | |
| Network OPP and SNP | | | |
| Colegiului Psihologilor din Romania | | | |
| Russian Psychological Society | | | |
| Ordine Degli Psicologi Della Repubblica Di San Marino | | | |
| Association of Psychologists of Serbia | | | |
| Slovenska komora psychologov | | | |
| Slovenian Psychological Association (Drustvo psihologov Slovenije) | | | |
| Colegio Oficial de Psicologos | | | |
| Sveriges Psykologförbund | | | |
| Fédération suisse des psychologues | 1987 | 7000 | |
| Turkish Psychological Association P.K. | | | |
| National Association of psychologists of Ukraine | | | |
| British Psychological Society | | | |