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About Us

Fortis Advisory is a professional services firm providing accounting, taxation and advisory services to start-up, SME and corporate clients.


Padraic O’Rafferty - Director

Padraic is a director of Fortis Advisory and leads the firm’s accounting, taxation and advisory services for start-up and SME clients.

Padraic acts in a CFO capacity for a number of clients providing practical hands-on advice to add value where possible in relation to their growth strategies. This involves working with clients to develop their business plans, preparation of financial projections, financial reporting and providing strategic business advice.

He has over 24 years of diverse experience including acting as Head of Finance in companies across a variety of sectors such as technology, healthcare and real estate.  Padraic also held a role as an Asset Manager for the National Asset Management Agency for almost 5 years during which he managed a diverse portfolio of assets including a number of operating businesses in the hospitality sector.

Padraic is a qualified accountant and is a Fellow of the Association of Chartered Certified Accountants (FCCA).  He has also completed the Enterprise Ireland Strategic Leadership for CFOs programme at Stanford Graduate Business School.

by City Headshots Dublin

Aisling Mellon - Director

Aisling is a director in Fortis Advisory and is responsible for managing a team providing liquidations services to a broad range of corporate clients.

Aisling is a registered insolvency practitioner and holds both a practicing certificate and insolvency practicing certificate from Chartered Accountants Ireland. She has accepted and managed a significant number of liquidation engagements over the last number of years particularly from regulated investment fund companies and special purpose vehicles promoted by many of the most renowned financial institutions in the world.

She has over 20 years' diverse experience in the Irish financial services sector and prior to co-founding Fortis Advisory, held senior positions in the Sanne Group and Chartered Corporate Services. While with Sanne, Aisling was lead director of corporate services for Sanne in Ireland and was also an executive director on the Sanne corporate boards in Ireland.

Aisling is a qualified Chartered Accountant and is a Fellow of Chartered Accountants Ireland. She also holds a Bachelor of Commerce Degree, a Masters in Accountancy from University College Dublin and a Certificate in the Taxation of Irish Domiciled Funds.


Julia Olivera

Julia qualified as a Certified Public Accountant in Venezuela and worked with KPMG within the audit department where she was engaged on a number of high profile assignments across various sectors.

In 2014 she commenced with JJJ & Asociados, a medium sized accounting and taxation services firm in Venezuela.

Julia joined Fortis Advisory in September 2017 where she is responsible for the preparation of management accounts and statutory financial statements as well as managing taxation compliance for small to medium sized businesses.

by City Headshots Dublin

Ki Wong

Ki has a Degree in Business Studies from Dublin City University and is also a graduate of the Institute of Chartered Secretaries and Administrators.

She spent seven years with Sanne Group working within the liquidation and VAT compliance team and prior to that worked in accounting practice and fund accounting.

Ki joined Fortis Advisory in November 2018 and is responsible for administration, bookkeeping, taxation and accounting services.

Helena photo

Helena Macek

Helena joined Fortis Advisory in January 2020 and is responsible for administration and accounting support for clients.

Originally from Croatia, Helena holds both a Bachelor’s and a Master’s Degree in Economics from the University of Rijeka in Croatia.

Prior to joining Fortis Advisory, Helena held administration and sales coordination roles in an established hospitality group in Ireland.