• We are pleased to announce that we have moved to the following address as of March 9th, 2015.
    • Suite 3, The Avenue
      Beacon Court
      Sandyford , Dublin18

    • Our new office location will provide better access for our clients and employees, as it is located adjacent to M50 and is a short walk for LUAS. Our phone and fax numbers will remain unchanged. We look forward to welcoming you to our new and larger office in Beacon Court.

Building Relationships

Swan O Sullivan is an established Practice of Professional Advisors. The Partners are Nigel Swan and Kevin O'Sullivan, each of whom brings a wealth of experience and expertise to the Practice. The Partners are supported by highly qualified staff, who have direct experience in business matters and offer clients expert advice. The Firm's extensive Client Base encompasses a brad range of sectors including Manufacturing, Engineering, Retail, Tourism, Professional/Medical/Financial Services, Construction and Property Development.

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Time and Concern

We understand issues faced by both start-up and well-established businesses. Knowing that you can depend on one experienced firm for every financial and accounting service saves time and concern.

As a financial firm, we aim to provide a wide range of services that will not simply meet your statutory requirements today, but provide strong financial and corporate direction to your organisation for tomorrow. With highly skilled professional staff, we provide complete solutions which will maximimize your outcome.

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The Practice

Swan O Sullivan is a medium sized firm of
registered auditors and accountants which
offers a broad range of audit, accounting,
financial and taxation services to clients.

Who We Are

We have over thirty years of experience working with indigenous, owner-managed, partnerships, medical and family businesses in Ireland, so we understand the key issues which drive your business.


We believe in the prompt delivery of expert advice and a value added service to our clients. This is a reflection of our in-depth knowledge of the individual needs of each of our clients.


Audit & Accounting

We believe that you require more from your accountant than just assisting you to meet statutory requirements by preparing financial statements.


Taxation & Financial Planning

Our clients are creative, ambitious and entrepreneurial - and we understand that type of approach. How we serve is very important.


Bookkeeping & Payroll

Providing meaningful financial information to our clients in a timely and accurate manner is a commitment that we feel cannot be compromised.


Forensic Accounting

Through our forensic accounting, litigation support and expert witness services we have assisted both claimants and defendants.


Insolvency / Liquidation

If you're facing financial difficulties, whether as a business or an individual, and you can't seem to find a solution to your problems on your own, we are here to assist.

Business Hours

We'd be delighted to hear from
you. Please do get in touch!

Monday-Friday: 9am to 5pm

P: +353 1 4764500

F: +353 1 4764599

Our Office Locations

  • Location


    Republic of Ireland
  • Suite 3, The Avenue,
    Beacon Court, Sandyford, Dublin18, ROI   D18 KR76


Interested or Questions?