Julie Kipp is a Clinical Social Worker/Therapist from the USA who works with people who have been given challenging diagnoses including psychotic disorders. She co-chaired the ISPS 2015 congress in New York. Julie joined the ISPS Executive Committee in March 2015 and was the ISPS Treasurer from 2017 until 2022. Julie is the current Chair of ISPS.

Dag Söderström is a psychiatrist and psychoanalyst, researcher on City and Psychosis and co-founder of ISPS Switzerland. He has a clinical practice and is an academic teacher, individual and team supervisor. He has been involved in ISPS since 1994 and became a member of the ISPS International Executive Committee in September 2019.

Debra Lampshire is an experience-based expert at the University of Auckland and project manager for Auckland District Health Board in New Zealand. Debra is the current chairperson of ISPS-NZ and joined the ISPS Executive Committee in May 2012.

Jen Kilyon has campaigned for many years for more compassionate and family friendly mental health services. She has been a trustee of ISPS UK since 2007 and is also a trustee of Soteria Network UK. She joined the ISPS International Executive Committee in September 2019.

Alfred Gillham is a retired Consultant Clinical Psychologist who worked in the NHS in the United Kingdom for over 30 years and now lives in Greece. Alf is a past committee member of UK ISPS, for 11 years, who stepped down in 2018 and helped organise a number of UK conferences as well as the ISPS International Conference in Liverpool in 2017. Alf joined the ISPS International Executive Committee in September 2022.

Claire Bien is a mental health advocate and educator; author of a memoir, Hearing Voices, Living Fully: Living with the Voices in My Head; member of the board of directors and immediate past president ISPS-US; and a member of the board of the Hearing Voices Network (HVN)-USA. I am also a founding member of the board of directors of the New Haven affiliate of the National Alliance on Mental Illness. She joined the ISPS Executive Committee in July 2025.

Helen Hamer is a Registered nurse with extensive years of experience in both physical and mental health settings; Associate Head, School of Nursing for mental health and addiction studies at the University of Auckland; and a strong advocate and leader for the specialist profession of mental health, addiction and disability nursing and support their opportunities for systems change by one of the biggest workforces in health care. She joined the ISPS Executive Committee in July 2025.

Pesach Lichtenberg is both a clinician and an academic. He began his training in psychiatry in 1986, in Jerusalem, shortly after relocating from New York. After running locked psychiatric wards, he could see the need for a profound reform and in 2016 he set up the first Soteria House in Israel. Today, 42 such homes operate in Israel. He joined the ISPS Executive Committee in July 2025.