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Denis O'Sullivan

Denis O'Sullivan



Denis works in the Outsourced Accounting & Advisory Services department and is responsible for the preparation of monthly and quarterly management accounts to a variety of clients ensuring strict deadlines are met.

Denis is responsible for the preparation and analysis of client’s KPI’s on a weekly/monthly basis as required and preparation of Business Plans and Cash flow forecasts.

Denis is responsible for the preparation and submission of VAT, RCT and Payroll returns on a monthly/quarterly basis as required.

Denis is responsible for the supervision and training of external client bookkeepers along with Quintas team members.


Sector Experience

Denis has a broad range of knowledge of PAYE/PRSI, VAT and Relevant Contracts Tax and is responsible for providing Management Accounting services to an extensive client portfolio in various sectors, including oil distribution, pharmacies, construction and a cross section of retail businesses.


Qualifications & Previous Roles

Denis is a graduate of Cork Institute of Technology and is a member of the Association of Chartered Certified Accountants.

Prior to joining the firm, Denis previously worked in small/medium sized practices in the Audit and Accounting sector, gaining experience in all aspects of audit, accounts preparation, taxation and company secretarial compliance.


Expertise Covers

Management Accounts & KPI Reporting, External Bookkeeping, Taxation Returns & Payroll