- ADR Center, Italy
- Center for Mediation and Law, Russia
- The International Child Abduction Center, The Netherlands
- Croatian Mediation Association
- Chamber of Mediators of the Republic Macedonia
- European Centre for Dispute Resolution, Slovenia
- European Association of Judges for Mediation (GEMME)
- Family Mediation Center, Greece
- Greek Mediation Institute, Greece
- Hellenic Union of Mediators, Greece
- Integrierte Mediation e.V. - Germany
- MiKK, Germany
- Professional Association of the Mediators in Bulgaria
- Institute of Conflict Resolution, Bulgaria
