Andrew O'Brien-Penney

Principal at BRATTLE GROUP

Mr. O’Brien-Penney is an economic expert who specializes in transfer pricing, intellectual property (IP) valuations, and related issues. He has nearly two decades of experience providing economic and financial analyses in large tax controversies, including multi-billion-dollar disputes. Working closely with tax controversy lawyers and corporate tax professionals, Mr. O’Brien-Penney helps clients defend transfer pricing positions in interactions with US and foreign tax authorities. He has experience in all stages of tax controversies, from audit to administrative appeals to litigation, as well as with alternative dispute resolution proceedings, such as advance pricing agreements and mutual agreement procedures. He has worked across a variety of sectors, with particular emphasis on technology, financial services, and healthcare.