Our People

Management Team

Clinical Services Manager: Marta Carbajo

Marta joined One in Four in 2020 and stepped into the role of Clinical Services Manager in 2022, bringing a wealth of experience in trauma-informed psychotherapy, group facilitation, and service development. A UKCP-accredited Gestalt psychotherapist, Marta is deeply committed to providing safe, compassionate, and empowering therapeutic support for survivors of sexual abuse and trauma.

With a background in education and languages, Marta developed a strong foundation in pastoral care and student mental health before transitioning into psychotherapy. Her international experience, including over six years in Southeast Asia and humanitarian settings, has shaped her culturally attuned, adaptable, and person-centred approach. She has extensive expertise in individual therapy as well as facilitating therapy and personal development groups, reflective practice groups, and psychoeducational workshops.

As Clinical Services Manager, Marta has been instrumental in refining and expanding One in Four’s therapeutic services. She has introduced a more nuanced, trauma-sensitive clinical assessment framework, ensuring accessibility while prioritising client safety. Passionate about clinical excellence, she is committed to fostering a reflective, supportive environment for practitioners, integrating best practices in trauma therapy, and continuously developing innovative, survivor-centred approaches.

Marta is particularly interested in creative and embodied approaches to trauma recovery, as well as the integration of digital tools to enhance accessibility in therapy. She is dedicated to breaking down barriers to support, advocating for inclusivity, and ensuring that survivors receive high-quality, trauma-informed care.

Head of advocacy: Dianne Ludlow

Dianne leads the advocacy work for One in Four. She has over 15 years proven expertise in working with survivors and the criminal justice process and civil claims.  Her understanding of the needs of survivors in this complex area, ensures clients feel well understood and supported. She has a background in law and advocacy and has supported hundreds of clients from across the UK and Ireland and as far afield as the USA, Iran and Jamaica.

Counsellors and therapists

One in Four counsellors and therapists, come from a range of training modalities, and are specifically trained to support people with the trauma of childhood sexual abuse.

All One in Four counsellors and therapists are committed to working ethically, and are experienced members of the British Association of Counselling and Psychotherapy (BACP).

Our trustees

Simon Cook (Chair)

Born of West Indian parents; Simon Cook has lived and worked in South East (London / Kent) within the health and social care arena for some 37 years managing in Acute; Primary Care commissioning and for the last 20-years within Mental Health.  Keen to utilise his considerable management skills in the voluntary sector.

Enthusiastic, supportive as well as energetic Simon is developing the equality agenda within his current NHS Trust, leading the Black and Asian Minority Ethic (BAME) discussion ensuring equality is centric in everyday decision making

A Postgraduate (NHS Management Trainee) highly committed manager, investor and peoples coach Simon is keen to use and develop his skills and knowledge within the community(s) that he lives within and adores. Positively competitive, team player, visible, people-centred, diplomatic, always respecting the views of others.

Christiane Sanderson

Christiane Sanderson is a counselling psychologist, consultant in domestic and sexual violence and Interpersonal abuse. She has many years clinical experience of working with survivors of child sexual abuse, domestic violence and interpersonal trauma and is a recognised trainer in the voluntary and statutory sectors, and psychotherapy training institutes. Christiane is author of many publications on abuse and has written One in Four’s most popular publications, The Warrior Within, The Spirit Within and Responding to survivors of child sexual abuse, a pocket guide for professionals, partners, families and friends.

Seema Katrina Chopra Sharma

A highly experienced and passionate fundraiser specialising in Corporate, Events and Grants and Trusts fundraising , Seema has over 13 years’ worth of experience of New Business Acquisition and Account Management Fundraising in the non-profit sector. She is extremely accomplished in increasing charity income through effective product development, strategic planning and marketing to key audiences and stakeholders. She has a successful record of managing sponsorship, COTY, CRM and commercial opportunities. She is known to be a proactive networker and relationship manager. 

Jules Herd

Jules Herd is a seasoned brand expert with over 20 years’ experience in the PR and communications industry. In 2018 she founded her company Five in a Boat – a strategic comms agency specialising in transformative technology clients. She also co-owns EV Cables and two years ago launched drinks brand Blind Swan. Jules has been voted in PR Week’s top global 300 PR professionals three times, is a former Chair of the PRCA Council and is about to launch a weekly radio show called On The Edge. Outside of work Jules volunteered for the Samaritans for a number of years before becoming a trustee of One in Four. She has a nine-year old child, a lab called Luna and enjoys wine, fitness and painting.

Laura Foster – Trustee

Laura Foster has worked for almost 40 years in IT and banking. Her professional experience included managing risk through detailed analysis followed by communication across organisations, as well as running board level governance committees. Having been a foster career for teenage children she has spoken to many survivors of abuse and is passionate about the need for safe spaces for survivors to talk and begin healing.

Nichole Burley-Burton

With over 13 years of HR experience across the arts, education, and healthcare sectors, Nichole specialises in all aspects of HR, operations, and organisational development. Nichole is a trained Mentor, accredited by the CIPD, holding a Master’s Degree in HR Management, alongside her CIPD Level 7 accreditation in Human Resources Management. She delivers strategic HR leadership with a strong foundation in academic principles and practical expertise. Extensive experience in Equality, Diversity, and Inclusion (EDI) has led Nichole to successfully implement initiatives that cultivate inclusive, equitable, and diverse workplace cultures. These efforts enhance representation, accessibility, engagement, and belonging across global workforces spanning the UK, Germany, France, and Spain. Her commitment to social responsibility and giving back to the community ensures that her work has a positive impact beyond the organisation itself.

Claire Libbey – Trustee

With over 30 years of experience managing large, complex high performing teams within a variety of organisations an executive level, Claire has developed, grown and globally exported, purpose driven, culture centric organisations, designing and executing the Talent, HR and Organisational strategy to support business growth – inventing the people strategy to enable organisations to maximise growth through transformational change.

Accredited as a Chartered Member of the CIPD, an NLP Master Practitioner and Executive Coach, Claire supports businesses of all sizes to scale and grow meeting the goals of the business, client and its people.

Thomas McConnell

Tom has worked in various financial institutions for the past 15 years with a focus on change management, risk management, and operating model design. In those institutions he has also led various charitable working groups and initiatives. Outside of work Tom is also involved as an advisor to a number of smaller independent enterprises. He lives in Clapham and stays busy with two children and a collection of hobbies.