Dunn & Ellis Cyf
Company Directors
The firm currently has six directors and are complemented by a very strong and experienced team of qualified staff.
Information on the Directors can be found below, while the background information and contact details for other members of staff can be found in the dedicated Staff Directory.
Equity Directors
Sion E. Roberts ATT, CTA
Having commenced employment with Dunn & Ellis Cyf in 1988, Sion qualified as a Chartered Tax practitioner in 1999, entering into the partnership in 2001, and became a director upon incorporation in June, 2016. Sion shares his time between both offices, travelling to Menai Bridge on Tuesdays and Thursdays.
Sion specializes in the taxation of individuals and companies, having a particular interest in the taxation issues specific to the rural economy.
Sion gained a SWAT UK Certificate in Probate and Estate Administration Course and Assessment in November, 2015.
Iorwerth Ll. Williams B.Sc(Econ), FCA
Iorwerth commenced working for Dunn & Ellis Cyf in March of 2007 after completion of his Chartered Accountancy qualification with Deloitte in Cardiff and London.
Iorwerth graduated at the University of Wales Aberystwyth after studying Agriculture and Business Studies.
Iorwerth became a partner within the practice in February, 2010 and a director upon incorporation in June, 2016. Iorwerth shares his time between both offices, travelling to Menai Bridge on Mondays.
Nia Fôn Lane FCCA
Nia joined the practice in 1996, having previously been with NatWest Bank after completing her A Levels.
She is AAT qualified and became eligible for ACCA membership in 2010 and subsequently became a fellow member in April 2020.
Nia gained a SWAT UK Certificate in Probate and Estate Administration Course and Assessment in June 2015.
Nia became a director of the firm in October 2021 and is based in our office in Porthmadog.
Lois G. Morgan B.Sc (Hons), ACA
Lois joined Dunn & Ellis Cyf in 2010 having graduated from Lancaster University with a degree in Accounting, Auditing and Finance sponsored by Ernst & Young.
Lois became ACA qualified in 2014, is an ICAEW member and gained a SWAT UK Certificate in Probate and Estate Administration Course and Assessment in June 2015.
Lois became a director of the firm in October 2021 and is based in our office in Menai Bridge.
Directors
Guto M. Davies B.Sc(Hons), ATT, CTA
After graduating from Aberystwyth University, Guto joined Dunn & Ellis Cyf in 2012 as an accounts assistant. Guto is a member of the AAT and became a full member of the CIOT in 2018.
Guto became a director of the firm in February 2025 and is based in our office in Menai Bridge.
Huw T. Wilcox B.Sc(Hons), FCCA, ACA
Huw joined Dunn & Ellis Cyf in 2015 having previously gained experience working with another accountancy practice. Huw is a full member of the ACCA and became a fellow member in June 2024. Huw became a member of the ICAEW via the pathways route in December 2024.
Huw became a director of the firm in February 2025 and is based in our office in Porthmadog.