Peter Kunneman has a background in the Change Management area of Organizational Consulting (Accenture) working with clients in Germany (Deutsche Bahn) and The Netherlands (a.o. Dutch Railways). In 2009 he followed a foundation course on SCT by Yvonne Agazarian and consequently decided to use SCT as his major orientation in work. Since then, he works as Team Coach with Management Teams and Boards of Directors. Peter is a licensed SCT practitioner since 2017. He is co-author of the book Leve het Team (in Dutch), which describes the group dynamics (from an SCT point of view) of a tender team that competes with other teams for a large public assignment.  Peter is a Co-Director of the 2024 SCTRI OD Conference.

Patricia Aerts, BA, Organizational Consultant, Team & Executive Coach at TopTeamWerk (Founder & Partner). She works from a systems perspective with teams, leaders and professionals on an open and functional collaborating climate, leadership- and system development. She helps build learning systems for better results and relations by unlocking available resources and energy. Patricia  is Licensed SCT Practitioner, Co-director of the SCTRI OD Conference System and currently SCT trainer-in-training in Europe and the USA.

Susan P. Gantt, Ph.D., ABPP, CGP, AGPA-DF, FAPA, is a psychologist in private practice and coordinated group psychotherapy training in psychiatry at Emory University for 29 years. She chairs the Systems-Centered Training (SCT) and Research Institute; teaches SCT in the US, Europe and China; and leads training groups in Atlanta, San Francisco, and the Netherlands. She has consulted to teams in a range of contexts, e.g., the pharmaceutical industry, clinical pastoral education, and consulting firms. She has co-authored four books with Yvonne Agazarian, co-edited The Interpersonal Neurobiology of Group Psychotherapy and Group Process with Bonnie Badenoch, and received the 2011 Alonso Award for Excellence in Psychodynamic Group Psychotherapy. Her newest book is Systems-Centered Training: An Illustrated Guide for Applying a Theory of Living Human Systems (Agazarian, Gantt, & Carter, 2021).

Rowena Davis, MSc, is an organizational consultant working with public, private and not-for-profit organizations in the UK and internationally. Her work combines coaching individuals and teams; strategic marketing and planning; mapping systems; and running SCT and SAVI (System for Analyzing Verbal Interaction) trainings in the US and Europe. She is a Licensed Systems-Centered Practitioner, a certified SAVI trainer, Director of Research and member of the Systems-Centered Training and Research Institute Board and a Director of SCTUK. She holds an MSc in Change Agent Skills & Strategies (Distinction) from the University of Surrey, a Dottore in Sociologia from the University of Trento, Italy, and a BSc (Econ) from the London School of Economics.

Annie MacIver, MA, worked in senior leadership and management roles in the public sector in the UK for over 30 years. She has experience of leading large and complex statutory child-care organisations with significant financial budgets across large geographical areas. Now working in private practice, Annie offers coaching, mentoring and training to teams and individuals in the private, public and third sector, in the UK and internationally, with a particular focus on delivering outcomes in complex and challenging organisational contexts. Her primary approach is Systems-Centered theory methods and tools with the goal of creating collaborative and problem-solving working systems. Annie has an MA with distinction in Consultation and the Organisation (D10) from the Tavistock Clinic and the University of East London. She also holds a BA in Public Administration and is a qualified Social Worker registered with Social Work England. Annie is a Licensed Systems-Centered practitioner and a board member of the Systems-Centered Training and Research Institute, Inc, a Director of SCTUK and is Co-Director of the Yvonne Agazarian Training and Resource Center in Philadelphia.

Hella Ritz, Drs., has expertise in developing organisations through coaching Management teams, Boards of Directors and executives to deliver results, using differences as fuel for excellence. Hella uses Systems-Centered methods and tools to foster liveliness, creative problem-solving and collaboration in the system. Hella has 10 years of experience in management roles and 25 years of experience as a consultant and executive team coach, working for a wide range of public and private organizations. She holds a Master degree in Business Communication, is a licensed Systems Centered practitioner (since 2018) and a Certified SAVI (System for Analyzing Verbal Interaction) trainer since 2015. Hella gained hand-on insight into organisational daily life during her 10 years as a manager in the largest Dutch NGO and as a manager in a private training company.

Diederick Janse, MSc., International Business Studies. For 15 years, I have supported organizations in becoming radically self-managing, integrating progressive management practices with insights from Systems-Centered Training (SCT). In recent years, I have begun to question the meaning of my work. I strongly believe a different story can be told about the organizations we show up in. For me, citizenship has emerged as a central element of this new story -- a concept that is very close to the SCT concept of "taking up our membership." It is an invitation to remember how we create and continuously recreate the systems we live in, and to use self-management as a practice for making them healthier, more sustainable, and more radically purpose-driven.

Erik Slotboom, MSc, Information Technology. I coach and train teams and organizations in their self-management journey, so people can show up fully in pursuit of a shared purpose. Beyond painful decision-making, office politics, ambiguity, and conflict. Having spent many years as an Agile coach, I longed for a more systematic approach to transforming not just teams, but the whole organizational system. I found it in Holacracy and in Systems-Centered Training, which have deeply informed my organization development work ever since.

Peter Kunneman has a background in the Change Management area of Organizational Consulting (Accenture) working with clients in Germany (Deutsche Bahn) and The Netherlands (a.o. Dutch Railways). In 2009 he followed a foundation course on SCT by Yvonne Agazarian and consequently decided to use SCT as his major orientation in work. Since then, he works as Team Coach with Management Teams and Boards of Directors. Peter is a licensed SCT practitioner since 2017. He is co-author of the book Leve het Team (in Dutch), which describes the group dynamics (from an SCT point of view) of a tender team that competes with other teams for a large public assignment. 

Hella Ritz, Drs., has expertise in developing organisations through coaching Management teams, Boards of Directors and executives to deliver results, using differences as fuel for excellence. Hella uses Systems-Centered methods and tools to foster liveliness in the system, creative problem-solving and collaboration. Hella has 10 years of experience in management roles and 25 years of experience as a consultant and executive team coach, working for a wide range of public and private organizations. She holds a Master degree in Business Communication, is a licensed Systems Centered practitioner (since 2018) and a Certified SAVI (System for Analyzing Verbal Interaction) trainer since 2015. Hella gained hand-on insight into organisational daily life during her 10 years as a manager in the largest Dutch NGO and as a manager in a private training company.

Susan P. Gantt, Ph.D., ABPP, CGP, AGPA-DF, FAPA, is a psychologist in private practice and coordinated group psychotherapy training in psychiatry at Emory University for 29 years. She chairs the Systems-Centered Training (SCT) and Research Institute; teaches SCT in the US, Europe and China; and leads training groups in Atlanta, San Francisco, and the Netherlands. She has consulted to teams in a range of contexts, e.g., the pharmaceutical industry, clinical pastoral education, and consulting firms. She has co-authored four books with Yvonne Agazarian, co-edited The Interpersonal Neurobiology of Group Psychotherapy and Group Process with Bonnie Badenoch, and received the 2011 Alonso Award for Excellence in Psychodynamic Group Psychotherapy. Her newest book is Systems-Centered Training: An Illustrated Guide for Applying a Theory of Living Human Systems (Agazarian, Gantt, & Carter, 2021).

Rowena Davis, MSc, is an organizational consultant working with public, private and not-for-profit organizations in the UK and internationally. Her work combines coaching individuals and teams; strategic marketing and planning; mapping systems; and running SCT and SAVI (System for Analyzing Verbal Interaction) trainings in the US and Europe. She is a Licensed Systems-Centered Practitioner, a certified SAVI trainer, Director of Research and member of the Systems-Centered Training and Research Institute Board and a Director of SCTUK. She holds an MSc in Change Agent Skills & Strategies (Distinction) from the University of Surrey, a Dottore in Sociologia from the University of Trento, Italy, and a BSc (Econ) from the London School of Economics.

Susan P. Gantt, Ph.D., ABPP, CGP, AGPA-DF, FAPA, is a psychologist in private practice and coordinated group psychotherapy training in psychiatry at Emory University for 29 years. She chairs the Systems-Centered Training (SCT) and Research Institute; teaches SCT in the US, Europe and China; and leads training groups in Atlanta, San Francisco, and the Netherlands. She has consulted to teams in a range of contexts, e.g., the pharmaceutical industry, clinical pastoral education, and consulting firms. She has co-authored four books with Yvonne Agazarian, co-edited The Interpersonal Neurobiology of Group Psychotherapy and Group Process with Bonnie Badenoch, and received the 2011 Alonso Award for Excellence in Psychodynamic Group Psychotherapy. Her newest book is Systems-Centered Training: An Illustrated Guide for Applying a Theory of Living Human Systems (Agazarian, Gantt, & Carter, 2021).

Ray Haddock, MBChB, M.MedSc, FRCPsych, is a Licensed Systems-Centered Practitioner and member of the Systems-Centered Training and Research Institute Board. Also a member of the Institute of Group Analysis, he is a former member of the board of the International Association of Group Psychotherapy. He leads SCT training groups and workshops in the UK and internationally. Trained as a medical doctor, psychiatrist and psychotherapist, he was a Consultant Medical Psychotherapist in the NHS for over 25 years, where he occupied several management roles, including whole system service development, and taught trainees in psychiatry and psychotherapy. He uses SCT and a Theory of Living Human Systems, clinically in day-to-day organisational work, consultation, mentoring and leadership development.

Mike Maher, MA, PGCE, is an experienced psychotherapist, trainer and organisational consultant. He was formerly Deputy Director at Peper Harow Therapeutic Community, and subsequently maintained a long involvement with organisations engaged in therapeutic child care and treatment. He is Director of the international Systems-Centered Training and Research Institute and is a licensed SCT practitioner. As well as running a private clinical practice, Mike runs SCT training groups in Holland and Denmark and offers systems-centered consultation and clinical supervision to organisations and individuals. He has presented at many international conferences and his work has been regularly published.

Susan P. Gantt, Ph.D., ABPP, CGP, AGPA-DF, FAPA, is a psychologist in private practice and coordinated group psychotherapy training in psychiatry at Emory University for 29 years. She chairs the Systems-Centered Training (SCT) and Research Institute; teaches SCT in the US, Europe and China; and leads training groups in Atlanta, San Francisco, and the Netherlands. She has consulted to teams in a range of contexts, e.g., the pharmaceutical industry, clinical pastoral education, and consulting firms. She has co-authored four books with Yvonne Agazarian, co-edited The Interpersonal Neurobiology of Group Psychotherapy and Group Process with Bonnie Badenoch, and received the 2011 Alonso Award for Excellence in Psychodynamic Group Psychotherapy. Her newest book is Systems-Centered Training: An Illustrated Guide for Applying a Theory of Living Human Systems (Agazarian, Gantt, & Carter, 2021).

Patricia Aerts, BA, Organizational Consultant, Team & Executive Coach at TopTeamWerk (Co-Founder). Patricia works with teams, leaders and professionals to create a collaborative climate for leadership and system development. She helps build learning systems which unlock previously bound up resources and energy which then fuels better relationships and results. Patricia is a Licensed SCT Practitioner, Co-Director of the 2024 SCTRI OD Conference System and currently SCT trainer-in-training in Europe and the USA.  

Janneke Maas, MSc, BA, works as an Organizational System Coach and Leadership System trainer. She works with teams, individuals and organizations. Her focus is on freeing up energy for work and relations, to help create a fun climate to support the work. Janneke also educates professionals to learn the trade of being a teamcoach. She is Co-Director of the SCT Annual Conference system.

Daniel Nordlander is an organizational consultant and licensed psychologist. He started working as a psychologist in the field of Occupational Psychology in 2002. After 6 years working in occupational health care, Daniel started working as an Organizational consultant at Sandahl Partners in Örebro, Sweden. Sandahl Partners Örebro is a part of a small group of three independent business units that share a common interest in bringing psychological knowledge and knowhow to businesses and organisations that want to bring their human resources to life and create sustainable growth and grow through integration of differences.

Jobbeke de Jong is the author of 2 books on intervention skills in systems, founder of Tachles and the Tachles Academy, an institute that trains professional intervention skills in systems and interventionist in organizations

Mark Bouman, MSc, has worked as an independent consultant and team coach in his firm The Art of Learning for over 25 years with ambitious leaders and professionals in profit and not-for-profit organisations. He is a senior teamcoach and interventionist with Tachles. 

Susan P. Gantt, Ph.D., ABPP, CGP, AGPA-DF, FAPA, is a psychologist in private practice and coordinated group psychotherapy training in psychiatry at Emory University for 29 years. She chairs the Systems-Centered Training (SCT) and Research Institute; teaches SCT in the US, Europe and China; and leads training groups in Atlanta, San Francisco, and the Netherlands. She has consulted to teams in a range of contexts, e.g., the pharmaceutical industry, clinical pastoral education, and consulting firms. She has co-authored four books with Yvonne Agazarian, co-edited The Interpersonal Neurobiology of Group Psychotherapy and Group Process with Bonnie Badenoch, and received the 2011 Alonso Award for Excellence in Psychodynamic Group Psychotherapy. Her newest book is Systems-Centered Training: An Illustrated Guide for Applying a Theory of Living Human Systems (Agazarian, Gantt, & Carter, 2021).

Alida Zweidler-McKay helps individuals and teams clarify goals and improve communication to increase their capacity for productive partnerships. She is a Certified SAVI Trainer, and a Certified SAVI Master Coder. She has a BA from Swarthmore College and has an MBA from the Wharton School of the University of Pennsylvania.

Dr. Michelle Lynskey’s expertise and insight into people and organizations are grounded in her 25+ years of experience in external and internal coaching and consulting. In these capacities, she has worked with a broad range of positions, from CEO to Directors. She has worked at the individual, team, and organizational levels, as well as with a span of operational and functional units. Her industry experience includes oil & gas, health care, professional services, manufacturing, and more. Michelle received her Ph.D. in Industrial and Organizational Psychology from Rice University and has a variety of professional certifications in support of her coaching and consulting practice.

Beulah Trey, Ph.D., is a licensed psychologist and senior executive consultant. An expert in management theory and practice, she is the founder of Vector Group, a firm of licensed clinicians with expertise in transforming organizations, leaders, and teams through a values-based approach. Beulah is Adjunct Assistant Professor of Anesthesiology and Critical Care at University of Pennsylvania Perelman School of Medicine. She holds a Ph.D. from the University of Pennsylvania and a BA from Swarthmore College.

Katarina Billman, MS Psychology, Licensed Psychologist, has many years of experience in various specialist manager and leadership positions in large global as well as Swedish national organisations. She has extended experience from Human Resources and Organisational Development consulting. She specializes in leadership and team development, integrating organizational cultural differences and innovation. She is a Licensed SCT Practitioner. In 2012 she took up a pioneering role as co-director for SCTRI’s first international organizational development conference. Since 2011 Katarina is a regular guest professor at the MS Psychology Program of Lund University, Sweden. Currently she works with innovation and change projects within the Swedish health sector.

Bernd Postma, MBA Economics. With 30 years of business experience, I embarked on my SCT journey in 2010, seamlessly blending theory into my daily work, ensuring growth and innovation along the way.

Peter Kunneman has a background in the Change Management area of Organizational Consulting (Accenture) working with clients in Germany (Deutsche Bahn) and The Netherlands (a.o. Dutch Railways). In 2009 he followed a foundation course on SCT by Yvonne Agazarian and consequently decided to use SCT as his major orientation in work. Since then, he works as Team Coach with Management Teams and Boards of Directors. Peter is a licensed SCT practitioner since 2017. He is co-author of the book Leve het Team (in Dutch), which describes the group dynamics (from an SCT point of view) of a tender team that competes with other teams for a large public assignment. 

Susan P. Gantt, Ph.D., ABPP, CGP, AGPA-DF, FAPA, is a psychologist in private practice and coordinated group psychotherapy training in psychiatry at Emory University for 29 years. She chairs the Systems-Centered Training (SCT) and Research Institute; teaches SCT in the US, Europe and China; and leads training groups in Atlanta, San Francisco, and the Netherlands. She has consulted to teams in a range of contexts, e.g., the pharmaceutical industry, clinical pastoral education, and consulting firms. She has co-authored four books with Yvonne Agazarian, co-edited The Interpersonal Neurobiology of Group Psychotherapy and Group Process with Bonnie Badenoch, and received the 2011 Alonso Award for Excellence in Psychodynamic Group Psychotherapy. Her newest book is Systems-Centered Training: An Illustrated Guide for Applying a Theory of Living Human Systems (Agazarian, Gantt, & Carter, 2021).

Ray Haddock, MBChB, M.MedSc, FRCPsych, is a Licensed Systems-Centered Practitioner and member of the Systems-Centered Training and Research Institute Board. Also a member of the Institute of Group Analysis, he is a former member of the board of the International Association of Group Psychotherapy. He leads SCT training groups and workshops in the UK and internationally. Trained as a medical doctor, psychiatrist and psychotherapist, he was a Consultant Medical Psychotherapist in the NHS for over 25 years, where he occupied several management roles, including whole system service development, and taught trainees in psychiatry and psychotherapy. He uses SCT and a Theory of Living Human Systems, clinically in day-to-day organisational work, consultation, mentoring and leadership development.

Mike Maher, MA, PGCE, is an experienced psychotherapist, trainer and organisational consultant. He was formerly Deputy Director at Peper Harow Therapeutic Community, and subsequently maintained a long involvement with organisations engaged in therapeutic child care and treatment. He is Director of the international Systems-Centered Training and Research Institute and is a licensed SCT practitioner. As well as running a private clinical practice, Mike runs SCT training groups in Holland and Denmark and offers systems-centered consultation and clinical supervision to organisations and individuals. He has presented at many international conferences and his work has been regularly published.