As a leading accountancy company, OSK are committed to building strong relationships with our clients. We act for a wide range of clients including:

OSK’s experience in dealing with such a diverse client base equips us with the skills and understanding to deliver excellent service to all of our clients. Call Ireland's leading accountancy firm today on 01 4394200.

Welcome to OSK

A video message from Tadgh O'Sullivan, Director.

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Please note we cannot provide advice unless you are signed up as a client having completed the required money laundering documents, engagement letter has been issued to you and fee agreed.