The Board of Trustees is ultimately responsible for the strategic decisions made by the charity. The board works closely with the Chief Executive and the Executive Team and has legal accountability for the charity and a responsibility to ensure our assets are used exclusively to further the objectives of the charity. 

Our trustees meet quarterly and receive no remuneration for their services, nor do they have any business or personal interest in the charity’s contracts. Trustees normally serve for a maximum of six years and are subject to re-election after three years. 

Trinity currently has nine trustees from a variety of professional backgrounds:


Adrian Williams - Chairman of the Board of Trustees
Adrian held senior positions in private equity and investment banking at Bridgepoint, HSBC Investment Bank and Hawkpoint during a 25 year career. Since retiring from the City he has sat on the boards of several companies and non-profit organisations in the UK and overseas. Adrian has been a supporter of Trinity for many years and a trustee since 2014. He is married with two children and has lived in Clapham for 30 years.


Katharine Jackson - Deputy Chair
Katharine is chief operating officer and chief finance officer for SAGE International which is a leading international publisher of journals, books and electronic media for academic, educational and professional markets. Since 1965, SAGE has helped inform and educate a global community of scholars, practitioners, researchers and students spanning a wide range of subject areas including business, humanities, social sciences and science, technology and medicine. Katharine has worked within the media sector for the last 14 years. She is a chartered accountant and an MBA and spent the early part of her career working for PwC focussing on acquisitions.

James Piper - Honorary Treasurer
James is a Partner at the investment firm TPG, where he focuses on investments in the real estate sector across Europe. Prior to 2019, he was a Partner at Ares Management for 12 years, after previously starting his career in investment banking at Credit Suisse. James joined Trinity as a trustee in April 2018 with aim of bringing his enthusiasm and business experience to the hospice. James lives in Clapham with his wife and two young sons.

Tessa Moore
Tessa Moore has spent her career working in the entertainment industry and is currently SVP Global Brand Management at FremantleMedia Kids & Family Entertainment working across their portfolio of children’s brands. Previous roles include working in marketing and brand development for global companies including Philips, Virgin and Disney. At Disney she was also responsible for corporate social responsibility in Europe including a global partnership with Great Ormond Street Children’s Hospital. She is also a non-executive member of the Trading Board at the NCVO. She has two teenage daughters and has lived in South London for all her adult life.


Geraldine Walters CBE
With over 30 years’ experience in the NHS, Geraldine has worked in clinical practice in the public and private sector. She has a PhD, an MBA and has held senior nursing director roles in various London hospitals. She spent seven years at Kings College Hospital NHS Foundation Trust, latterly as Executive Director of Nursing and Midwifery, and Director of Infection Prevention and Control. In March 2016 she became Director of Nursing and Midwifery Education, Standards and Policy at the Nursing and Midwifery Council, aiming to transform educational standards for nurses and midwives. In January 2017 she was awarded the CBE for services to nursing and midwifery. Geraldine is a Visiting Professor at Buckinghamshire New University, and an Honorary Professor at Kings College London.


William Buller
William is a business consultant with over 20 years of experience helping businesses innovate and change through the application of technology. He currently leads Smarter Working practice at Telefonica O2. Before that he worked on innovation at Cisco and change management with PwC. He is married with two children and lives in West London.

Gerard Manley 
Gerard is the Chief Executive Officer of Olam Cocoa. He is a member of Olam Group’s Executive Committee and is Executive Chairman of the group’s Corporate Responsibility and Sustainability Function and has oversight on Olam’s European operations. He is a Board member of the ECA and the World Cocoa Foundation and a Founder member of Cocoa Action. He is a former Chairman of the Federation of Cocoa Commerce and has served on the Boards of the Cocoa Association of Asia and the London Cocoa Terminal Market. 

Mr Manley has over 30 years’ Board experience in the cocoa world, joining Holco Trading Company (part of ED&F Man) in 1983. For ED&F Man he held Directorships in the UK, Poland and Malaysia. He managed the product trading operations with significant responsibility for the Group’s processing operations. He has been with Olam for the past 20 years. He has a BA Honours in Geography and holds an MBA from the City University in London. He has lived in Clapham and Tooting for 30 years and is married with three children.

Alison Petit
Alison is currently Marketing Director at VentureFounders, one of the UK's leading online venture capital firms. She was Global Marketing Director at NM Rothschild and held a number of senior management roles at Barclays Bank in their investment and Private Banking divisions. She also ran her own strategic consultancy advising banks and investment managers.

She is a previous winner of Management Today’s Rising Star of the Year Award and is a Member of the Securities Institute.  She served six years as a Trustee at Hospice in the Weald and is currently on the Fundraising Committee for Coeliac UK. She has recently been shortlisted for the prestigious Ambassador of the Year category, at the 2018 Women in Finance Awards. Alison is married, with two young Children and has lived in Clapham for the last twenty years.

Heather Blake
Heather is Director of Support and Influencing at Prostate Cancer UK.  She is responsible for leading the work of the charity to ensure that men have access to the best treatments, care and support.  This includes the charity’s own support services, and work to improve outcomes and care for men across the UK by promoting best current practice and getting new research findings out into standard care.

Heather has held a number of senior operational and strategic management roles in the NHS, including managing community health services in Lambeth and Southwark as part of Guys & St Thomas' NHS Foundation Trust. Before joining the NHS she worked as an economist and policy adviser in the civil service.

Read our blog about our trustees

Meet our executive team