Brian O'Sullivan

Brian is a Partner of the Financial Services division, bringing his depth of experience to engagements across both the audit and advisory departments. Brian originally started with the firm in 2007 before spending over three years with one of Ireland’s pillar banks, a further three within the banking and capital markets team of a big 4 firm and returning back to Grant Thornton to assist with the growth of the financial services offering.

Brian will be based out of New York (post COVID) to lead the US/Ireland desk and the collaboration of the offerings between Grant Thornton US and Grant Thornton Ireland.