Ordinary Members
| Country | Name | Abbreviation |
| Czech Republic | Česká pirátská strana | PP-CZ |
| Finland | Piraattipuolue | PP-FI |
| France | Parti Pirate | PP-FR |
| Germany | Piratenpartei Deutschland | PP-DE |
| Iceland | Píratar | PP-IS |
| Italy | Pírati | Pirati |
| Italy | Partito Pirata | PP-IT |
| Luxembourg | Piratepartei Lëtzebuerg | PP-LU |
| Netherlands | Piratenpartij | PP-NL |
| Poland | Polska Partia Piratów | PP-PL |
| Slovakia | Pirátska strana – Slovensko | PP-SK |
| Slovenia | Piratska stranka Slovenije | PP-SI |
| Sweden | Piratpartiet | PP-SE |
| Switzerland | Piratenpartei Schweiz | PP-CH |
Observer Members
| Country | Name | Abbreviation |
| Austria | Piratenpartei Österreichs | PP-AT |
| Austria | Minderheitenliste Österreichs – Donauföderation | MÖ-DF |
| Bavaria | Piratenpartei Landesverband Bayern | |
| Belgium | Parti Pirate/Piratenpartij | PP-BE |
| Brandenburg | Piratenpartei Brandenburg | |
| Estonia | Eesti Piraadipartei | PP-EE |
| Europe | Young Pirates of Europe | YPE |
| Europe | The Pirate Group in the European Parliament | MEP |
| Germany (Potsdam) | Stadtverband Potsdam | |
| Hungary | Magyar Kétfarkú Kutya Párt | MKKP |
| Japan | 日本海賊党7) | PPJP |
| Serbia | Pirate Party of Serbia (Пирати) | PPRS |
| Spain | Pirates de Catalunya | PP-CAT |
| Ukraine | Ukrainian Pirate Community | PP-UA |
| World | Pirate Parties International | PPI |