The Positive team brings together experience from a wealth of backgrounds including psychology, neuroscience, medicine, tech, statistics, education, creative writing and design. You can meet our staff and advisory boards below.

The Positive Team

Brian Marien Photo
Dr Brian Marien
Co-Founder and Director
Dr Brian Marien
Co-Founder and Director

MB BS DCH DRCOG MSc (Psychol) MRCGP

Brian trained in medicine and gained a Masters in Health Psychology from Surrey University before going on to train in cognitive and behavioural psychology at the Institute of Psychiatry, London. He worked as a specialist in the Academic Department of Psychological Medicine, St. Bartholomew’s Hospital. Brian is now Co-Founder and Director of the Positive Group.

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Will Marien Photo
Will Marien
Co-Founder and Director
Will Marien
Co-Founder and Director

Will is one of Positive’s Co-Founders and specialises in organisational behaviour change. He has spent the last 10 years working with large corporates, universities and schools to achieve key learning outcomes and behavioural change to supports psychological wellbeing at individual, team and organisational levels. Will is passionate about using multidisciplinary approaches to improving psychological health in organisations, with significant experience across the banking, accountancy and pharmaceutical sectors.

Hattie Crosthwaite Eyre
Chief Operating Officer
Hattie Crosthwaite Eyre
Chief Operating Officer

Hattie is fascinated by human behaviour and how we thrive. She has a 1st class degree in Human Sciences from Oxford, and an MSc in Public Health. She spent 4 years as a Manager in McKinsey’s healthcare practice, and was COO of psychology start-up Potentialife, founded by Harvard’s Tal Ben-Shahar.

Sinéad Devine-French
Dr Sinéad Devine-French
Head Of Product
Dr Sinéad Devine-French
Head Of Product

PhD, BA (Hons)

Sinéad is a chartered psychologist and head of Product at Positive, working in the development and delivery of programmes across the corporate and education sectors. Sinéad heads up Positive’s delivery team and is passionate about increasing individual and group understanding of the science of human behaviour, and embedding this knowledge into organisational practice to improve psychological wellbeing, relationships and performance.

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Susanne Jacobs Photo
Susanne Jacobs
Programme Director
Susanne Jacobs
Programme Director

MBA, Chartered FCIPD; FCMI

Susanne is Programme Director and a specialist in trust, intrinsic motivation, leadership and optimal performance. She has over 25 years’ strategic business change experience, including 19 years as head of Finance Operations and People at KPMG. Susanne completed a Masters in International Business with the business schools of Edinburgh University and Paris ENPC and has post graduate certificates in Organisational Development and Advanced Leadership Techniques. She is a chartered fellow of the CIPD and a member of the Neuroleadership Institute.

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Jen Jenkins Photo
Dr Jen Jenkins
Client Director
Dr Jen Jenkins
Client Director

PhD, BSc(Hons)

Jen combines an academic background in Physiology, Psychology and Psychiatry with over ten years of experience in operational roles in the biotech and pharmaceutical industries. As a consultant for the last decade, Jen has worked with senior leaders across a wide variety of sectors specialising in creating high-performing, resilient teams.

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Juliet Mooney Photo
Juliet Mooney
Client Operations
Juliet Mooney
Client Operations

Juliet joined the Positive team from a career in finance, bringing with her a long-standing fascination with psychology and a passion for science. At Positive, Juliet facilitates the smooth-running of deliveries by looking after client communication and administrative requirements.

Safiya Greensword Photo
Safiya Greensword
Design, Tech & Development
Safiya Greensword
Design, Tech & Development

With a Bachelors in Media Production, Safiya has come from the world of visual effects within the film industry and now combines her personal passion for psychology and experience in software development. At Positive Safiya oversees and develops the Positive App, as well as managing data and the online platform.

Valentina Olivieri Photo
Valentina Olivieri
Technical Project Manager
Valentina Olivieri
Technical Project Manager

Valentina studied at the University of Genoa, Italy, obtaining a BA and MA in Foreign Modern Languages and Literatures as well as an Executive Master in European Project Design and Management. Her interest in educational technologies came from tutoring other adults, children and teenagers, where she encountered many undiagnosed learning difficulties. After moving to the UK, Valentina submitted a proposal to the University of Oxford and subsequently completed an MSc in Education. She then started working as a Project Coordinator at Healthcare Learning, an e-learning provider specialising in the medical sector, and she is now Technical Project Manager for the Positive Group.

Shona Wood Photo
Shona Wood
Marketing & Communications
Shona Wood
Marketing & Communications

Shona is an English Language and Linguistics graduate with a profound appreciation for both creativity and science. She is passionate about the importance of mental health awareness and is currently Marketing and Communications Lead at Positive.

Harriet Brown Photo
Harriet Brown
Data & Insights
Harriet Brown
Data & Insights

MSc

Harriet is the data and analytics lead at Positive Group. She specialises in using a range of techniques to obtain qualitative and quantitative data in order to provide focused insights to organisations. Harriet is skilled at creating a narrative which can build engagement and momentum around behaviour and culture change. Harriet is a qualified lawyer and has a Masters in Psychology.

Colm Roche Photo
Colm Roche
Brand & Design
Colm Roche
Brand & Design

Colm is responsible for the Positive brand and oversees the company’s creative output, including app and tool development, online support platforms, workbooks, animation and illustration. He has over 15 years’ experience, working with major international brands such as Nike, Tate, Unilever and NetJets.

Osiro Imoedemhe Photo
Osiro Imoedemhe
Admin Assistant
Osiro Imoedemhe
Admin Assistant

Osiro is currently a trainee Sport and Exercise Psychologist who is interested in working with athletes to promote changes in behaviour that positively impact performance. Having gained three psychology degrees, she hopes to charter as a Sport and Exercise Psychologist in early 2021. In her spare time, Osiro enjoys playing netball and practicing modern calligraphy.

Patrick Anson Photo
Patrick Anson
Creative Writing
Patrick Anson
Creative Writing

Patrick is an English Language and Literature graduate who developed a keen interest in psychology during university. He is able to combine his zeal for both writing and science in his role at Positive. His duties involve research, blogging, and other creative writing.

Matt Pocock Photo
Matt Pocock
Business Director (Asia)
Matt Pocock
Business Director (Asia)

Matt started his career in London selling hospitality and sponsorship at sporting events and got into the world of financial media and publishing after moving to Hong Kong just over 10 years ago. He has travelled and worked extensively across the APAC region and now advises financial services and education clients on their digital, social and content strategies. At Positive, Matt’s role focuses on sales within Asia.

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John Shanahan Photo
John Shanahan
Programme Director (Asia)
John Shanahan
Programme Director (Asia)

MPsych, MEd, Grad Dip Ed

John is an educational and developmental psychologist who specialises in children and adolescents. Having grown up in Hong Kong, he is familiar with the educational, cultural, and social contexts that families have to navigate, and he now works with schools and companies to provide developmental training and advice. At Positive, he helps to deliver programmes to schools within Asia.

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Eloise Crush Photo
Dr Eloise Crush
Psychological Strategist
Dr Eloise Crush
Psychological Strategist

MSc, PhD

Eloise spent the first 10 years of her working career in Corporate Banking and Management Consultancy roles. She returned to the field of Psychology further to being awarded a scholarship by the Medical Research Council to study Social, Genetic & Developmental Psychiatry at King’s College London. Eloise’s PhD was focused upon Psychological Resilience and she has a number of publications which consider protective factors for psychological wellbeing.

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Toby Clyde-Smith Photo
Toby Clyde-Smith
Client Team
Toby Clyde-Smith
Client Team

BSc, MBPsS

Toby is an Associate for Positive with key interests in optimal team performance, culture change and group behaviour. He has over ten years’ experience working in high-performing teams, enjoying roles in both business and sport, and has recently completed a BSc in Psychology.

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Annie Gascoyne Photo
Annie Gascoyne
Client Team
Annie Gascoyne
Client Team

Annie has considerable experience as a consultant, coach, and manager of people, projects, operations and change, from multinationals to start-ups. She has a Masters in Organisational Behaviour and is currently conducting PhD research into organisational flexibility, as a way to predict and influence organisational and employee effectiveness and wellbeing.

Alice Gee Photo
Dr Alice Gee
Client Team
Dr Alice Gee
Client Team

BA (Hons), DipPsych, DClinPsy

Alice is a Clinical Psychologist. She worked in NHS psychological services for ten years before setting up in private practice, where she offers therapy and coaching. Alice brings extensive experience in the translation and application of psychological approaches in business and in high-performance sports, to promote wellbeing, resilience and sustainable performance.

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Clare Benka
Clare Benka
Client Team
Clare Benka
Client Team

SMA, REPS, MAR

Clare gained a Masters in Occupational & Organisational Psychology and has considerable experience as a consultant and coach. Clare runs a London clinic in a number of physical therapies, working with a diverse range of clients. Clare also delivers seminars on physical and psychological health and wellness to corporate clients.

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Emma Sedgwick Photo
Dr Emma Sedgwick
Client Team
Dr Emma Sedgwick
Client Team

MBBS DCH BSc MRCPsych MBA

Emma is a highly qualified and accredited coach who also supervises other coaches, individually and in groups. After training as a doctor Emma specialised in psychiatry, working in clinical practice. Since then, Emma has gone on to work for the Medical Defense Union (MDU) while also completing an MBA.

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Sophia Seltzer-Eade Photo
Sophia Seltzer-Eade
Client Team
Sophia Seltzer-Eade
Client Team

Sophia is a Clinical Psychologist, trained in a number of evidence-based psychological approaches, with Cognitive Behavioural Therapy (CBT) forming a large part of her work. Sophia has worked in a variety of clinical settings with a range of client groups across the lifespan.

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Eleanor Hambleton-Smith
Eleanor Hambleton-Smith
Bookkeeper
Eleanor Hambleton-Smith
Bookkeeper

Eleanor comes from a finance background having worked in various sectors for nine years. She has joined Positive as a Bookkeeper and is responsible for overseeing the payables and receivables. Eleanor is also currently studying towards a BA in Criminology with Sociology.

The Scientific Advisory Board

Tom Sensky Photo
Professor Tom Sensky
Department of Psychological Medicine at Imperial College London
Professor Tom Sensky
Department of Psychological Medicine at Imperial College London
Trudie Chalder
Professor Trudie Chalder
Professor of Cognitive Behavioural Psychotherapy at the Institute of Psychiatry in King's College London
Professor Trudie Chalder
Professor of Cognitive Behavioural Psychotherapy at the Institute of Psychiatry in King's College London
Paul Brown
Professor Paul Brown
Faculty Professor of Organisational Neuroscience, Monarch Business School, Switzerland
Professor Paul Brown
Faculty Professor of Organisational Neuroscience, Monarch Business School, Switzerland
Geoff Bird
Associate Professor of Experimental Psychology at the University of Oxford
Geoff Bird
Associate Professor of Experimental Psychology at the University of Oxford

The Business Advisory Board

Shaun Kingsbury
Shaun Kingsbury CBE
Former CEO of UK Green Investment Bank
Shaun Kingsbury CBE
Former CEO of UK Green Investment Bank
Simon Hampel
Simon Hampel
Former Co-Managing Partner at Leaders'​ Quest
Simon Hampel
Former Co-Managing Partner at Leaders'​ Quest
Greg Kennaugh
Greg Kennaugh
Chief Operating Officer at Founders Forum
Greg Kennaugh
Chief Operating Officer at Founders Forum
June Boyle
June Boyle
Organisational Change Specialist, Former HRD Lloyds Banking Group
June Boyle
Organisational Change Specialist, Former HRD Lloyds Banking Group