Denise O'Sullivan
Manager
Audit | Accounts Preparation
Executive summary
Denise is a Manager within the Audit department at BDO Northern Ireland. She joined the firm in October 2021, after graduating from Ulster University Belfast and qualified as a Chartered Accountant in 2025 following the completion of her training contract here in BDO Northern Ireland.
Denise manages a diverse portfolio of clients across the manufacturing, construction, logistics and SaaS sectors alongside professional services clients. She works on a range of large and medium-sized groups including audits involving group reporting requirements.
Denise additionally supports the development of BDO trainees while ensuring the team consistently meets the high technical standards required.
Denise manages a diverse portfolio of clients across the manufacturing, construction, logistics and SaaS sectors alongside professional services clients. She works on a range of large and medium-sized groups including audits involving group reporting requirements.
Denise additionally supports the development of BDO trainees while ensuring the team consistently meets the high technical standards required.