Trustees

Our success is built on strong management and a board bringing expertise from fields of philanthropy, business leadership and academia. All of our trustees share a passion to improve the welfare of children and young people and to invest in their future as members of a common community.


Chair: Sim Scavazza

Sim became a Trustee for Mentor in 2005 and has served as Chair since March 2007. She is a retail and fashion specialist with over 25 years in the clothing industry. Sim has worked in buying and merchandising for some of the leading retailers in the UK, including six years at the Arcadia Group where she was Brand Director of the much-loved Miss Selfridge fashion chain and instrumental in re-positioning the brand. A founding member of the ethical online retailer Adili.com, later Ascension, she was part of the team that launched the brand onto the Alternative Investment Market, raising funds from private investors and boutique venture capitalists. As a consultant, she has worked both internationally and in the UK for George at Asda and the Apparel Group, Australia. A speaker at the LCF Women in Enterprise Week, a member of the Government Fashion Summit and a judge at the prestigious Women of the Year Awards, Sim continues to speak about her experience in the fashion industry. Sim is a Governor at the University of the Arts London, comprising six creative arts campuses, including London College of Fashion, Central St Martins & Chelsea College of Art and Design. She also Chairs the UAL Personnel Committee and is Co-Chair of the LCF Gala Committee.

Antonia de Gier

Antonia joined Mentor as a Trustee in October 2014. Antonia worked in London and Zurich for eight years in banking using her business knowledge of French and German. She then retrained, gaining a degree in Nutritional Therapy. During her studies she specialised in nutrient deficiency and its effects on juvenile behaviour and gained a master qualification in Neuro Linguistic Programming, helping people to change their beliefs and behaviour.  She helped to set up a nutrition company in London before moving to Switzerland.  She has lived in Scotland full time since 2009 where she is now director of Edgerston Trading Ltd, running a farming and shooting estate.

Hanna Head

Hanna is an MA Comparative Drugs & Alcohol Studies student at Middlesex University, who has previously volunteered in her local drug treatment service after personally seeing the negative impact that drug use has had on family and friends. She is also part of the secretariat for the APPG for Drug Policy Reform, and works to organise a group of MPs who have acknowledged that current drug policy is increasing harms to individuals and communities. Hanna has been an active member in both youth and community organising, and has worked on engaging young people in shaping their education through her previous students’ union. She has also undertaken research around drug policy and drug education within higher education institutions, working alongside Release and NUS.  As a former trustee of Yellow Door (formerly Southampton Rape Crisis), and Solent Students’ Union, she was involved in organisational restructuring work, championed youth voices and highlighted barriers to young people engaging with services.

Clive Standish

Clive joined Mentor as a Trustee in November 2015 with a strong background in finance and management. His professional career began with N M Rothschild & Sons Ltd in London. In 1979 he was appointed a partner with Dominguez & Barry in Australia and became a Member of the Melbourne Stock Exchange in 1980. He was the Founding Executive Director at Dominguez Barry Samuel Montagu Limited and subsequently Head of Capital Markets and Managing Director until 1991 and then CEO of SBC Warburg Dillon Read Australia. In 1998 he was appointed Chairman and CEO for Asia Pacific UBS AG and Member of the Group Managing Board and subsequently Member of the Group Executive Board. In 2003 he moved to Zurich as Group Chief Financial Officer UBS AG until 2008 when he retired from the Board of UBS AG. Mr Standish lives in the UK with his wife Anna and has 8 children.

Scott Sullivan

Scott graduated from the University of Southampton with an honours degree in Law in 1989 and was admitted to the Bar of England and Wales in 1991. He worked as a commercial barrister in London until 2000 when he joined the legal department of Deutsche Bank. Scott held various positions within Deutsche Bank in London, ultimately having responsibility for the legal function within the asset management, private wealth management, trust and security services and offshore businesses. In 2005 Scott joined GAM as its General Counsel and in 2006, following GAM’s acquisition by Julius Baer, assumed the role of Group General Counsel, subsequently also becoming a member of Julius Baer’s Executive Board. Upon the separation of GAM from the Julius Baer group in 2009, Scott continued in the role of GAM’s Group General Counsel and a member of its Management Board. In 2017 Scott decided to step down from a full-time executive role but accepted the position of GAM’s Group Vice Chairman, which he held until the beginning of 2018 when he left GAM. Scott returned to the UK from Singapore in 2018 and currently resides in London with his wife and their two children (aged 12 and 11). Scott is passionate about travel and the arts and in 2015 co-produced the winner of the Cannes film festival best short film award.

Professor Harry Sumnall

Harry is Professor of Substance Use at the Centre for Public Health and Liverpool John Moores University, and joined Mentor’s Board of Trustees in June 2015. Harry’s funded research programmes have focused, like much of Mentor’s work, on the evidence base for drug and alcohol misuse prevention, and exploring ways to implement evidence-based preventive practice and policy. His research team at Liverpool John Moores University is currently investigating a number of specialist areas, including: alcohol harm reduction and prevention; quality standards for drug prevention; understanding the factors that contribute to risky behaviours and situations, and young people’s addiction policy. As well as being a Mentor Trustee, Harry is a Board Member of the European Society for Prevention Research and a member of the UK Advisory Council on the Misuse of Drugs, which used Mentor’s ADEPIS resources in its assessment of UK drug prevention interventions. He also reviews a number of journals relating to drug policy, psychopharmacology and substance misuse.

Derek Tracy

Derek Tracy is a Consultant Psychiatrist and Clinical Director at Oxleas NHS Foundation Trust, London. His directorate is a nationally innovative integrated model encompassing adult social care, mental and physical health services. He is a Senior Lecturer at King’s and University College London, running three MSc modules, and he has published over seventy peer-reviewed scientific papers and seven book chapters. In 2018 he was elected to the executive of the Royal College of Psychiatry’s academic faculty. His current research interests include novel psychoactive substances (‘legal highs’), and Derek is a member of the Advisory Committee on the Misuse of Drugs that provides expert scientific advice to the UK Home Office on drug harms. Derek is a board member of the British Journal of Psychiatry, writing its Kaleidoscope column, and leads the BJP’s public engagement arm that runs its twitter, podcast, and blogs. He is a Fellow of the Higher Education Academy, the Faculty of Medical Leadership and Management, the Royal Society of Arts, and the Royal College of Psychiatrists.