Our people

Livia Velicu – Chair's profile image

Livia Velicu – Chair

Livia is a charity lawyer at Bates Wells, a charity specialist law firm.

As part of her role, Livia advises a number of faith-based clients, providing support on a range of issues ranging from governance matters to guidance around trustee duties. Livia also regularly advises on matters relating to charity intellectual property.

Prior to joining Bates Wells in 2019, Livia was a paralegal and trainee at Stone King.

Helen Armstrong FICB PM.Dip  's profile image

Helen Armstrong FICB PM.Dip  

After working in the construction industry for over 25 years and enjoying a six-year spell serving her local church, Helen founded Priority Business Services Ltd. As Owner Director, she now provides bookkeeping, accounting, and payroll support to a wide range of churches and charities. She is also a Fellow Member of the Institute of Certified Bookkeepers (FICB). With extensive experience in the not-for-profit sector, Helen understands the particular financial and regulatory challenges these organisations face.

She is passionate about helping churches achieve great financial governance that not only meets statutory requirements but also enables and supports their mission. Her practical experience, sector insight, and commitment to good stewardship will be of great benefit to the ACAT Board and its members.

Jacob Power's profile image

Jacob Power

Jacob is a risk management consultant with the firm Arthur D. Little, specialising in enterprise risk, business continuity and crisis management in various sectors. Outside work, he is also a justice of the peace (magistrate) for England and Wales. He has been involved with ACAT since 2023 and became a director of its corporate trustee in 2025.

Greyham Dawes's profile image

Greyham Dawes

Greyham Dawes, FCA, DChA, is a retired Chartered Accountant specialising in all aspects of regulatory compliance by UK charities, their restructuring and their public accountability, ever since his work at the Charity Commission in the nineties on the setting up of the charity sector’s statutory regime of public accountability. As a specialist adviser in professional practice for the next 20 years, Greyham wrote and lectured extensively on the subject and served on the Boards of a number of high-profile charities, also developing sub-sector guidance on the Charities SORP and FRS102 for the Christian Church community, for the Education Sector and for Students’ Unions. He was ACAT’s treasurer for ten years up to 2021, and after a break as Board-adviser, was appointed to a new term on the Board at the 2022 AGM, under the Constitution.

Nigel Davies's profile image

Nigel Davies

Nigel is a volunteer member of the HFMA NHS Charity Finance Group, ACCA Charity Trustees’ Panel and the IFR4NPO Practitioners’ Advisory Group and he joined the ACAT Board in May 2023. He is also a part-time professional consultant advising on charity financial reporting, regulation and governance. Previously he held a number of senior roles at the Charity Commission for England and Wales (2001-2022), latterly Assistant Director, Accountancy Services, and he was also a Joint Chair of the Charities SORP Committee (2014-2022).

Immanuel Kemp's profile image

Immanuel Kemp

Immanuel is a risk and safety management consultant with the consultancy firm Arthur D. Little. He studied Chemical Engineering at the University of Cambridge, where he met and married Julia prior to settling down in the area.

In his day job he works with clients across a range of sectors, primarily in rail transport and the oil and gas industry, specialising in risk modelling and assessment and safety management.

He has been treasurer of Eden Baptist Church in Cambridge since 2015, and has been an ACAT trainer since 2017, delivering general treasurer training as well as more specialised risk and safety courses. He holds a Level 2 Foundation Certificate in Accounting with the AAT.

In his spare time he enjoys baking, ballroom dancing, occasionally standing in a supermarket foyer with a charity tin, attempting to learn German, and trying to self-teach his way to the Level 3 AAT qualification.

Mark Heaton's profile image

Mark Heaton

Mark is an accountant in practice in Burnley, Lancashire. In the mid 1990s he took an interest in charity accounts as the SORP 2005 was being developed and has since worked with many charities and not for profits as auditor, accountant and adviser. Currently chair of Association of Charity Independent Examiners and Company Secretary to North Western Baptist Association. He works with Anglican, Methodist, Independent Methodist, Baptist and AOG churches.

Mark attends an Anglican parish church near home. The outdoors whether it be the garden or walking keeps me sane outside of work!