The conductors of the large group: 

  • Tammy Elad &
  • Pieter Hutz

The conductors of the small groups:

  • Friedrich Markert   
  • Hanni Biran
  • Dieter Nitzgen
  • Ruth Duek
  • Evi Guggenheim Shbeta
  • Helga Felsberger
  • Georg Hess 
  • Oded Handel
  • John Schlapobersky

Tammy Elad, MSW,  Born in Jerusalem, Israel, lives in Herzelia, and has a Clinique in Tel-Aviv. Married and has three children.

MSW from Tel-Aviv University specialized in Group and Family Therapy.

Works in private practice with individuals, couples and analytic groups. Works as a supervisor of supervision groups in variety of organizations. Teaches in Tel-Aviv University. Co-Conductor of Large Groups in conferences in Israel, and conductor of Small and Medium Groups in IGA and IAGP conferences. 

More about Tammy Elad

Pieter Hutz, M.A. was born in Frankfurt/Main Germany. After his first profession as a merchant marine seaman he studied sociology in Frankfurt and Berlin. His group analytical training he had at the Institute of Group Analysis Heidelberg (IGA). Since 20 years he works as group analyst, group analytic supervisor and organizational consultant and as a couple- and family therapist in private practice in Berlin. He is training analyst in several German group analytic institutes.

During nine years he was the chairman oft the IGA Heidelberg. Since its founding in 2011, he is chairman of the German Society of Group Analysis and Group Psychotherapy (D3G).

More about Pieter Hutz 

Friedrich Markert, MD, studied medicine in Vienna, Basel and Munich; specialist in psychiatry and psychotherapeutic medicine (training at the University of Frankfurt); psychoanalyst (training at the Sigmund-Freud-Institute in Frankfurt); member of the German Psychoanalytical Association and of the International Psychoanalytical Association; group analyst (training in Zurich, Switzerland); 

From 1974 until 1981 working at the Department for Psychotherapy and Psychosomatics of the J.-W.-Goethe University in Frankfurt. Since 1981 working in private practice in Frankfurt as a psychiatrist, psychotherapist, psychoanalyst and group analyst.

More about Friedrich Markert 


Hanni Biran, M.A. Born in Israel to a family of an Iranian origin. Married, two children and four grandchildren. Clinical psychologist and supervisor, training psychoanalyst, Tel-Aviv Institute of Contemporary Psychoanalysis. Group Analyst. The Israeli Institute Of Group Analysis. Works in private practice, teaches at Tel-Aviv University and at TA Institute of Psychoanalysis, a member of PsychoActive. Published many papers on social unconscious processes, group dynamic, Social-Dreaming. Focused on W. R. Bion and elaborates on his concepts.

Her book "The courage of simplicity", illustrations of Bion's theory, is now in print and will be published soon by Karnac.

Selected Articles 

Dieter Nitzgen‏, Group analyst, training group analyst and supervisor of the 

IGA/H Heidelberg and full member of the German Group Analytic Society (D3G). 

Member of the Association of Freudian Psychoanalysis (AFP). Past Foulkes 

Lecturer 2008. Head of the psychotherapy department  

Rehaklinik Birkenbuck, a treatment centre of addictive disorders. Also 

working in private practice as a group analyst, psychoanalyst and organisational consultant. 

About Dieter Nitzgen

Ruth Duek, M.A, Senior Clinical Psychologist and Group Analyst. Born in the USA to German-Jewish refugees. Made aliyah to Israel at the age of 15. Mother and grandmother.

Formerly Co-chairwoman of Besod Siach Organization for the Promotion of Dialogue between Conflict Groups in Israeli Society. Member of the Israeli Institute for Group Analysis. Former Head Psychologist for the Israeli Prison System and establisher of its clinical psychology internship  program. 

More about Ruth Duek 

Evi Guggenheim Shbeta, MA Clinical Social Work. 

Evi Guggenheim Shbeta was born in Switzerland, immigrated to Israel at the age of 19, is married and the mother of three. She lives and works in Neve Shalom/Wahat al Salam ( ) a peace village where Jews and Palestinians work and live together in peace education while sharing land, administration and power.

Evi Guggenheim Shbeta is an expert Mental Health Social Worker, certified by the Israeli Association of Social Workers; Group Analyst, trained and certified by the Israeli Association for Group Analysis and "Internationale Arbeitsgemeinschaft für Gruppenanalyse";  

More about Evi Guggenheim Shbeta

Helga Felsberger, Dr. phil. Mag. phil.

Clinical psychologist, psychotherapist (group analysis and psychoanalytic psychotherapy) and supervisor working in private practice and in the ÖAGG run out-patient service in Vienna, Training group analyst and psychoanalytic psychotherapist at the ÖAGG (Austrian Association of Group Psychotherapy and Group Dynamics) and at SGAZ (Institute of Group Analysis Zurich), Organizer and head of the further training programme in Mentalization-based Treatment with the ÖAGG, Member of the editorial board of the journal “Gruppenpsychotherapie und Gruppendynamik. Zeitschrift für Theorie und Praxis der Gruppenanalyse” Vandenhoeck&Ruprecht, Göttingen, 

Adjunct Professor at Webster Vienna Private University

More about Helga Felsberger


Georg Hess, Dr. med. 

Active in group analytical training of post doc psychiatrists. Member of SGAZ , D3G (Gruppenlehranalytiker) and GASi.

Medical doctor in private practice in Zurich,  works since over three decades as psychotherapist and psychiatrist,  with special interest in group analysis. Group analytical training  mainly at the Seminar für Gruppenanalyse Zürich SGAZ, in which institute he is an active member since 1985. Therapeutic groups, team supervisions and applied group analysis.Since 2001 he co-conducts the yearly Postgraduate Seminar of SGAZ, together with Pieter Hutz.  

Since 20 years frequent travels to Israel.

About Georg Hess

Oded Handel, M.A., born in Jerusalem, lives and works in Haifa, Israel. Is married and a father of five children, and ten grandchildren.

Clinical psychologist and group analyst. Works as a supervisor and in private practice as individual and group therapist. Former director of the students counseling center at the Israel Institute of Technology, Haifa.

Incorporates music in workshops for professional colleagues as well as in group analytic treatment in order to facilitate the emotional process in groups.

About Oded Handel

John Schlapobersky, BA MSc.

John is a psychoanalytic and couple psychotherapist and a group analyst accredited by the UKCP.  He established the Bloomsbury Psychotherapy Practice in 2009 after many years in private practice at the both the Group Analytic Practice and Southwood Practice.  He is a Training Analyst at the Institute of Group Analysis and supervises on their Masters programme based at Birkbeck College University of London where he is an Honorary Research Fellow.  He has also served on the teaching staff at the London Centre for Psychotherapy, Tavistock Centre for Couple Relationships (TCCR) and elsewhere; and is a Founding Member of the British Society for Couple Psychotherapists and Counsellors.

John was formerly Consultant Psychotherapist to the Traumatic Stress Clinic at University College Hospital London and The Medical Foundation for Victims of Torture.  He was Programme Chair for the Group Analytic Society's Symposium in 2011: Cultures, Conflict and Creativity.  He is a regular contributor at conferences and training events in Europe, Israel and the USA.   John’s commitment to creative innovation in psychotherapy practice includes the development of group therapy for couples based on the work of Robin Skynner whose clinical papers he edited and published in two books.  

The Forum for Couples In Trouble, now based at his Practice, offers a range of services for couples and outreach links to other service agencies and practitioners in the field.

John is also a landscape photographer whose images illustrate the website of his Practice:

Selected Articles