Meet our Team
Our team of dedicated professionals is here to work alongside you to enhance your wellbeing. Whether you’re looking for professional supervision, one-on-one counselling and psychological support, or training for your team, we’re here to provide the support you need.
Book a consultation with one of our experienced team members today. Click the button above to schedule your first appointment. Alternatively, you can contact us by phone or email using the link at the top of the page to discuss the support you need.
Sean Versteegh
Psychologist / Director
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As well as working as a clinical psychologist and clinical advisor Sean has managed New Zealand's largest private psychology service, overseeing a team of over 250 psychologists and allied health professionals throughout Aotearoa.
Sean holds a Bachelor of Psychology (Honours at Flinders University) and a Master of Psychology (University of Adelaide). Sean has been a registered psychologist for over 15 years, holds a current annual practicing certificate within the clinical scope and is a member of the NZ College of Clinical Psychologists.
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Sean has completed training in Acceptance Commitment Therapy, Narrative Therapy, Positive Behaviour Support, Motivational Interviewing, professional supervision, neurodiversity, and disability.
Sean has worked extensively within high-performing executive teams, developing a keen understanding of the importance of promoting wellbeing in the workplace.
He is dedicated to using his expertise to improve mental health outcomes and promote equity for individuals and communities across Aotearoa.
Chris Scott
Psychologist / Director
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Chris is an experienced psychologist at 3 Big Things. Chris has over 20 years of experience working as a practicing psychologist across various government and non-government settings. Throughout his career, Chris has held several key positions, including Senior Psychologist, Supervisor, Clinical Advisor, Principal Psychologist, Service Manager, and Associate Tutor. In April 2022, he founded 3 Big Things, driven by his passion for improving the mental health and wellbeing of New Zealanders.
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Chris trained in Scotland and registered as a Psychologist in New Zealand in 2001. He has completed additional training in Sleep Assessment and Interventions, Motivational Interviewing, Solution Focused Brief Therapy, Trauma Therapy and Assessment, Autism, Disability, Positive Behaviour Support, Professional Supervision, Cognitive-Behaviour Therapy, and Acceptance Commitment Therapy.
Chris holds a current annual practicing certificate and is a member of the NZ Psychology Society. His extensive experience and expertise enable him to offer evidence-based solutions and practical support to individuals and organisations seeking to enhance mental health and wellbeing.
Laura Hook
Psychologist
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Laura is an accomplished psychologist with extensive experience across a range of sectors. Laura provides supervision and coaching to psychologists and professionals, fostering professional growth and enhancing client care.
Laura is committed to enhancing the wellbeing of all people, utilising her expertise to deliver evidence-based interventions that significantly improve mental wellbeing outcomes.
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Laura holds a Bachelor of Arts in Education and Psychology, Master of Educational Psychology and Post Graduate Diploma of Educational Psychology Practice. She has also completed additional training in Acceptance Commitment Therapy, Positive Behaviour Support, Solution Focused Brief Therapy, Professional Supervision, Motivational Interviewing, Relational Learning Framework, Trauma, Disability and Autism assessments.
Laura holds a current annual practicing certificate and is a member of the NZ Psychological Society.
Jemma Vivian
Psychologist
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Jemma is a registered psychologist with extensive experience across the NGO, healthcare, and disability sectors. She works collaboratively with people from diverse backgrounds, creating a warm, safe environment where clients can explore life's challenges and work toward meaningful change. Guided by a strong commitment to Te Tiriti o Waitangi, Jemma brings a culturally responsive, client-centered approach to her practice.
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Jemma holds a Bachelor of Science in Biology and Psychology, a Master of Science in Psychology, and a Postgraduate Diploma in Child and Family Psychology. She draws on several evidence-based approaches, including Cognitive Behavioural Therapy (CBT), Acceptance and Commitment Therapy (ACT), and Motivational Interviewing (MI).
Her practice is enhanced by specialized training in trauma-informed care, Positive Behaviour Support, autism assessments, and sleep psychology. Her work is enriched by extensive experience supporting neurodivergent people and people from diverse cultural backgrounds. She holds a current Annual Practising Certificate and is a member of the New Zealand Psychological Society.
Jon Moore
Psychologist
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Jon has over 15 years of practical experience as a teacher and psychologist. He holds an annual practising certificate with the New Zealand Psychologists Board as a registered psychologist.
Throughout his career, Jon has extensively supervised professionals, supporting their development and expertise. As a senior educational psychologist, he led a team of psychologists, fostering a collaborative environment.
Jon teaches at Te Herenga Waka, The University of Wellington, and directs the postgraduate diploma programme for intern educational psychologists. His research interests include self-concept development, consultation skills, and implementing evidence-based approaches locally.
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Jon earned his doctorate in Professional Educational, Child, and Adolescent Psychology from the IOE, University College London. He has received training in narrative therapy, cognitive-behavioural therapy for anxiety, autism support (SCERTS), and kaupapa Māori informed approaches such as Te Ara Whakamana.
Jon's approach honours and centres the client's experience, applying psychology to empower individuals and find new perspectives for moving forward.
Tania Antiss
Psychologist
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Tania is a Senior Clinical Psychologist at Te Whatu Ora Waitematā and has her own private practice. She has a wealth of experience in leadership and governance roles, currently a board member of Brain Tumour Support Trust and has served on the executive of the New Zealand Psychological Society for 6 years, most recently as President.
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As a registered clinical psychologist for over 25 years, Tania has extensive experience in the field and has a particular interest in professional and clinical supervision. She is cofounder of Supervision Collective Aotearoa. Tania is an accredited practitioner and trainer in several evidence based parenting programmes. She holds a current annual practicing certificate and is committed to ongoing professional development, having trained in a range of therapeutic models.
Dedicated to honoring Te Tiriti o Waitangi, Tania is committed to using Te Tiriti informed and mana enhancing approaches. As tangata tiriti, Tania has been actively involved in initiatives to support Maori psychology and improving outcomes for tangata whenua. She has a strong focus on workforce development, including training for Child and Adolescent Mental Health Practitioners, and serves as a Parenting Advisor and Trainer at Whāraurau National Workforce Development Centre.
Manon Van Esch
Social Worker
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Manon is a New Zealand registered social worker. She has over 25 years of extensive work experience in both clinical and leadership roles within mental health and disability services, public sector and community organisations, and in the education sector.
Manon is originally from the Netherlands and has been living in Aotearoa New Zealand since 2011. She is highly experienced in working with clients who have complex needs and challenging behaviours, including coordinating multi-disciplinary teams, providing professional supervision and delivering comprehensive social work services.
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Manon is dedicated to fostering cross-service and sector collaboration and to providing trauma and healing informed supports. She holds a Bachelor’s Degree in both Education and Social Work and is a trained and practicing play therapist in New Zealand.
Manon has completed training in leadership and supervision, positive behaviour support, motivational interviewing and has received advanced training in trauma informed care and attachment.
Adam Teo
Psychologist
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Adam's diverse skill set and cultural expertise enable him to provide tailored and effective support to his clients, ensuring their unique needs are met. His commitment to fostering understanding and promoting mental wellbeing within the Asian community is a testament to his dedication and professional excellence.
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Adam registered under the general scope in 2016. He specialises in working with the Asian community, bringing in-depth knowledge of cultural (Chinese) psychology and maintaining strong connections with several cultural community groups.
Adam offers a wide range of supports, including professional supervision, behaviour support, counselling, short-term therapy, cultural consultation, physical injury rehabilitation, family court reports, and translation/interpretation.
Adam holds a current annual practicing certificate and is a member of the NZ Psychological Society.
Mary McCaffrey
Social Worker
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Mary is an experienced professional with over 30 years in social work, brief intervention, probation services, group facilitation, supervision, training, and management. Her career spans both statutory organizations and NGOs across New Zealand and the United Kingdom. She is motivated by working alongside others to help them overcome challenges in a constructive, energetic and supportive way. As a clear communicator and skilled reflective listener, Mary aims to affirm and support individuals to affect changes they wish to make in their lives. She is passionate about social justice and committed to contributing to positive, reality-based change for individuals.
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Mary has developed expertise across numerous specialty areas including abuse and trauma (including sexual abuse), alcohol and other drug misuse, anxiety and depression, conflict resolution and anger management, couples counselling, family violence, grief and loss, low self-esteem and confidence issues, Rainbow counselling, relationship issues, and stress management. This comprehensive background allows her to work effectively with diverse client needs and provide informed supervision across a wide range of practice contexts.
Rachel Scaife
Counsellor
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Rachel brings more than 25 years of experience working face-to-face with clients facing alcohol and drug challenges. Her extensive background includes supporting both individuals on their recovery journey and their families. She has worked as a clinical supervisor for the past ten years, bringing depth and understanding to her supervisory role.
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Rachel's diverse career path began with training as a youth worker, followed by three years as a paramedic. Since relocating to New Zealand, she has worked across various addiction and mental health roles, including positions in residential services, community-based services, team leadership, and senior management. Her academic qualifications include a post-graduate certificate in alcohol and other drug studies from Auckland University and a Level 6 qualification in mental health and addiction supervision. These varied experiences have shaped her approach and fueled her passion for workplace wellness.
Juliet Mills
Counsellor
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Juliet is an experienced Addictions Counsellor, Clinical Supervisor, and Group Facilitator specializing in mental health and substance abuse. With nine years of dedicated experience, she brings a holistic and supportive approach to improving client wellbeing. Her journey into addiction and mental health counselling was inspired by five years of work with Women's Refuge crisis line. As a fourth-generation New Zealander based in Wellington, she combines local knowledge with international experience, having spent nine years working and traveling overseas.
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Juliet holds a Graduate Diploma in Applied Addictions Studies and a Level 6 Certificate of Addiction and Mental Health Supervision. She is a Practitioner Member and Accredited Supervisor with the Drug and Alcohol Practitioners Association of Aotearoa-New Zealand (DAPAANZ). Her expertise spans addiction, anxiety, depression, grief work, relationships, and stress management. She employs evidence-based approaches including Acceptance and Commitment Therapy (ACT), Mindfulness, Cognitive Behavioural Therapy (CBT), and Motivational Interviewing (MI).
Katie-Marie Jervis
Psychologist
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Katie-Marie a registered psychologist based in New Zealand/Aotearoa, proudly practicing since 2009. Originally from the UK, she moved to New Zealand in 2008, embracing a new chapter in both her professional and personal life. Katie-Marie and her family share a passion for travel and exploration, broadening their perspectives along the way.
Katie-Marie brings lived experience of neurodiversity within her family, which informs her strengths-based and solution-focused approach to therapy. She is passionate about empowering individuals and supporting positive change through culturally responsive care that aligns with each person’s unique needs.
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With extensive experience in forensic and health settings, Katie-Marie has worked with adults and adolescents who often present with complex challenges. Her professional journey includes over 12 years of supervising practice with both health and non-health professionals, in both individual and group settings.
Katie-Marie has a strong interest in understanding and addressing workplace systems challenges, as well as supporting project-based initiatives and mentoring practice. Her leadership experience has enabled her to develop a deep understanding of workplace dynamics and professional development, allowing her to support individuals and teams effectively.
Casey Williams
Psychologist
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Casey was born and raised in Whanganui and later moved to Wellington, where she pursued studies in Psychology, Criminology, and Addictions. For her Master's thesis, she explored the reasons why young people in New Zealand believe their peers engage in suicidal behaviour.
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Casey is trained in Eye Movement Desensitization and Reprocessing (EMDR) Therapy, and she specialises in the assessment of Attention-Deficit/Hyperactivity Disorder (ADHD) and Autism. Her expertise in these areas allows her to provide comprehensive evaluations and tailored interventions to support individuals with these conditions.
Casey holds a current annual practicing certificate and is a member of the New Zealand Psychological Society.
With a strong foundation in psychological assessment and therapeutic intervention, Casey is dedicated to improving the lives of those she works with, using evidence-based practices to foster positive outcomes.
Bridget Piper
Psychologist
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Bridget is New Zealand trained and a registered Psychologist with experience working in a range of contexts both in NZ and overseas. Her family are neurodivergent, and Bridget brings this lived experience to her work.
Bridget works from a strengths-based, solutions focussed, collaborative approach. Bridget likes to identify peoples’ priorities for growth and change, with a focus on improving quality of life. One of her key skills is providing practical, individualised advice around improving interactions between adults and young people. She values Te Tiriti o Waitangi and seeks to provide culturally responsive support.
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Bridget has experience in supervising youth mentors and people working in health provider settings. Bridget has run training on a range of topics for schools and NGOs including “Understanding Behaviour”, “How to support neurodivergent teens” and “Supporting young people who have experienced trauma.”
Clare Bennett
Psychologist
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Clare has a passion for helping others and sees her role as an enabler, placing the person at the centre. Clare will work together to understand your needs, navigate challenges, and identify a way forward. “Life is busy these days and every so often we get chucked a curve ball. Sometimes it’s just good to just have a safe to bounce things around”. Clare’s focus will be your goals, adding some tools to your toolkit and identify a workable plan to help you feel empowered, well, and confident moving forward.
Clare particularly enjoys her role as a trainer and coach in managing stress, building resilience and maintaining holistic health. Through her years of working with others, and understanding her own journey as well, Clare really appreciates the importance of a holistic approach to health that spans our body, mind, community and support, and spirit (tinana, hinengaro, whānau and wairua).
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Clare is a Registered Psychologist (General Scope) with additional training in therapeutic techniques (CBT, FACT, EMDR and Psychodrama), trauma response, supervision and coaching. As well as being an experienced people coach, supervisor and therapist/counsellor, Clare also has leadership and management experience across a range of specialist functions (including military psychology, mental health, wellbeing, organisational development, leadership and workplace culture). Supervision Approach
Naomi McLean
Counsellor
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Naomi is an experienced counsellor who has worked across agencies, schools, corporate health, and with ACC, supporting people through a wide range of life experiences and challenges. She believes that real change happens in a safe, warm, and genuine relationship that sees the whole person, not just the problem.
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Naomi's approach is person-centred, trauma-informed, attachment-informed, and grounded in psychotherapeutic and cognitive-behavioural (CBT) principles. She works practically and relationally, helping people build insight they can act on.