Partenalia’s working groups were organised in 2009 following the general arrangement of the network. This new organisational system was based on a survey made to the members about their competences and interests, as a result, three main lines of work were defined:
Their creation and the adhesion to them are carried out on voluntary basis.
In total, there are 15 administrations: 7 of which are Spanish, 1 Italian, 3 Belgian, 3 French and 1 Croatian. Diputación de Sevilla leads this new approach of the former working group on social issues supported by the Province of Virovitica-Podravina, Croatian new member of Partenalia, that co-leads the group.
In 2013, the Action Plan 2013 approved by the Political Council of Partenalia held in Val de Marne in March 2013 states that: "The challenge of unemployment affects all intermediate local governments in their territories and to some extend all Partenalia member administrations have among their competencies vocational training and fostering employment and the search for solutions to this tragedy". In this context, the members of the Social Affairs thematic area have decided to focus their efforts in this sense, using Partenalia as a platform for exchanging best practices and solutions in the field.