We Provide an Array of Accountancy Services

D.A. O’Sullivan are the utmost professionals and deliver an excellent and friendly service. Their work is always of the highest level
— Mark Newcombe, CloudStrong

Business Assurance & Audit Services

At D A O’Sullivan Associated we have over three decades of experience in providing business assurance and audit services to owner managed and family businesses. Our audit approach is progressive. We take the time to understand our clients’s business/sector and to make the audit process as constructive as possible. We focus on identifying and responding to key issues and risk factors in the business and adding value.

We are competitive on fees while being committed to quality, excellence and integrity.

At the end of each assignment we provide a series of recommendations which analyse performance, highlight weaknesses and suggest improvements for the future development of the business. In performing this we evaluate the financial controls, financial reporting and budgeting processes and identify any inefficiencies and risks.

Our range of expertise spans a wide range of business sectors including ...

  • Hotels and pubs
  • The entertainment industry
  • Property development and construction industries
  • Professional services providers
  • Voluntary sector including charities
  •  Manufacturing companies
  • Nursing homes


Taxation Services

Over the past 30 years we have department has developed a great knowledge base that meets all the needs of our clients who include a wide variety of small to medium sized businesses and high net worth individuals. We work with our clients to understand their requirements so as to provide the best possible advice at a cost that makes sense.

We understand the challenges that your family business faces at each stage of its business life cycle. Our advice is focused on wealth management strategies, income tax planning, capital taxes on wealth/asset transfers such as capital gains tax, gift and inheritance tax, and stamp duty.


Corporate Legal Services

Changes in Irish Company law have led to additional responsibilities and an increasingly complex role for both company directors and secretaries.

Our corporate legal services department has extensive experience in engaging with both the Companies Registration Office (CRO) and the Revenue Commissioners and can in conjunction with other specialists service (which we provide) areas ensure that all your corporate business needs are fully met. Our services include:

  • Annual compliance services
  • Dissolutions and restorations
  • Company formations
  • Corporate reorganisations and restructuring
  • Requirement to have an Irish resident director
  • Domain registration

Mergers, Acquisitions and Disposals

Whether you are looking to buy or sell a business Our Corporate Finance Department assists either potential purchasers or sellers achieve their best possible outcomes. Stages in an acquisition/merger/disposal assignment typically include:

  • Establishment of criteria
  • Identification of targets
  • Evaluation of potential targets
  • Structuring and sourcing of financial package
  • Negotiations with potential buyers/sellers


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