Stephen Williams
Steve worked as HM Inspector of Taxes, as part of senior management in Deloitte in Newport and is a founding partner of Kilsby Williams. He mainly looks after private family operations and has generated them wealth through careful tax and commercial planning. Steve was a successful amateur tennis player and actively participates in cycling.
Anna Jones
Anna has a Master Degree in Law and qualified as an ACA with Deloitte before joining Kilsby Williams in 2005. She has ability working on all aspects of corporate and personal tax compliance together with ad hoc tax planning projects. Anna likes to read and travel in her spare time.
Aron Barnes
Aron qualified as a Chartered Tax Adviser in 2020. He specialises in personal tax matters, working closely with high-net-worth individuals and owner-managed businesses. Outside of work, Aron enjoys spending quality time with his young family, keeping active through gym and park runs, and supporting Cardiff Rugby.
Abi Cornford
Alex Spencer
Alex joined the firm as a Business Services Manager in April 2025. He is certified by ACA since 2021 and has a background in Not for Profit audits. He now manages a varied portfolio of both corporate and charity clients, with a particular focus on audit work. Outside of work, he enjoys watching and playing […]
Ashley Wareham
Ashley is a Chartered Tax Advisor, responsible for managing a portfolio of personal and corporate clients. He deals with a combination of compliance and advisory work. In his spare time, Ashley enjoys mountain biking, watching live music and spending time with his young family.
Ben Hinton
Ben joined Kilsby Williams in 2024 as a business services manager. He is certified by ACCA since 2020 and brings a wealth of expertise in statutory and management accounts. Outside of work, he is passionate about traveling, keeping fit, and regularly competes in fitness competitions.
Bethan James
Bethan joined the firm in 2019 as a payroll assistant and progressed to payroll manager in 2025, shortly after completing her Foundation Degree in Payroll Management (FdA) through the IPPE in 2024. She has several years of experience in payroll and is proficient in a wide range of payroll software. Bethan is also a member […]
David Pescod
After completing a PhD in pure mathematics, David began a career in accountancy and tax and qualified as ACCA in 2022, before joining Kilsby Williams later the same year. David specialises in both corporate and personal tax, and since joining Kilsby Williams he has developed knowledge in trust and estate tax compliance. A keen sportsman, […]
Diane Nettleton
Diane is a personal tax advisor with a portfolio focused on high net worth individuals and partnerships. Diane has built a strong relationship with her clients and enjoys providing them with bespoke advice whilst conveying complex tax matters in an easily understood manner. One of Diane’s specialisms is helping individuals coming to and departing the […]