Mark L. Sirower


Partner | M&A and Restructuring Services

Mark L. Sirower is a U.S. Leader in Deloitte’s M&A and Restructuring practice, where he joined in 2008 to launch the M&A Strategy practice. Mark has advised senior executive teams on hundreds of transactions over the past 25 years from strategy and diligence through post-merger integration. Previously, he built the Deals Strategy Group at PwC and was global leader of the M&A practice at the Boston Consulting Group where he developed innovative approaches to crafting M&A strategies, planning integrations, delivering synergies, and creating shareholder value. Mark received his PhD from Columbia University and has taught M&A at the Wharton School, and for 30 years, at the NYU Stern School Executive MBA program. He is the author of the M&A bestseller, The Synergy Trap, and co-author of The Synergy Solution published by Harvard Business.