Core group
The Core group contains the following countries: Czech Republic, France, Germany, Slovenia, Spain, Sweden and The Netherlands
Other members
The other participating members are: Austria, Belgium, Bulgaria, Croatia, Cyprus, Denmark, Estonia, Finland, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Poland, Portugal, Romania, Slovakia.
Observers
Besides the participating members the Pen-MP also includes observers from various law enforcement agencies like: National Crime agency (UK), National Police Chiefs Council (UK), New South Wales Police Force ( Australia), Royal Canadian Mounted Police (Canada), Kosovo Police, Europol, Interpol and Frontex.
