The Union, founded in 1988, aims at promoting at European level systemic research and its applications. The EUS is a union of national learned societies. The scholarly systemic societies of each European country are entitled to join the EUS. The EUS strives to create, with its network of societies, a context conducive to the advancement of systemic systems (both its theoretical foundations, methodologies or applications) and its dissemination, Promoting cross-disciplinary exchanges.

Member societies

Active members of the EUS

Association Française de Science des Systèmes (AFSCET)

Associazione Italiana per la Ricerca sui Sistemi (AIRS)

Hellenic Society for Systemic Studies (HSSS)

Sociedad Española de Sistemas Generales (SESGE)

Asbl Systèmes & Organisations (S&O)

Associated member of the EUS

Associazione Italiana di Epistemologia e Metodologia Sistemiche (AIEMS)


Many events: meetings, seminars, summer schools, congresses and publications are organized, co-organized or coordinated by the EUS.

A) European Congress of Systems

This event takes place every three years (list at the end of the leaflet) and constitutes a great moment of encounter of the European systemicists and even of the whole world. It expresses the relational and interface function performed by the EUS and the synergetic role of the system. Articulating theoretical, methodological and practical approaches, systemic contributes to the synergy of the various disciplines, thus promoting scientific, social, economic and technical development. The EUS congresses aim to decompartmentalise the approaches of the specialists of the various disciplines:

By allowing them to exchange and compare their ideas,
Providing them with a framework and a practical method of analysis. The conferences and papers presented at these congresses are transdisciplinary and situated at the crossroads of science and epistemology. Among the main themes discussed are three groups:
Epistemology, complexity, adaptation, emergence, chaos, coherence, autonomy, self-reference, self-organization,
Methodologies: general system, formalization, modeling, organization, networks, hierarchy, systems dynamics,


O technology, automatic, robotics, artificial intelligence and life,
O Practices and experiences in natural systems (biology, medicine, ecology, etc.)
O practices and experiences in technical, administrative and socio-economic systems, management, decision-making, strategies,
O cognition, information, communication, education, natural language, psychology, family therapies.

B) Dissemination of systemic thinking

The EUS encourages and facilitates, through its member societies, all means of disseminating the system through writing, the Internet and through training for students and professionals. As regards writing, the European Congresses gave rise to a publication of Proceedings containing most of the papers.
In terms of the Internet, the EUS is represented by the sites of its member companies and the international journal Acta Europeana Systemica