Simpson Thacher & Bartlett LLP

Cementing its status as a market leader in the M&A space, Simpson Thacher & Bartlett LLP has ample experience in the structuring, negotiation, and completion of complex and high-value transactions. With involvement in major deals such as Microsoft’s $75bn acquisition of Activision Blizzard, the New York-based practice routinely represents clients in the infrastructure, tech, and consumer products sectors. Department head Eric Swedenburg counsels clients on various M&A mandates, divestitures, and joint ventures. Anthony Vernace is well-versed in representing private equity firms in M&A, investments, and other significant corporate transactions, while the experienced Lee Meyerson assists elite financial and investment firms on complex mergers. Alan Klein is reputed for his work in guiding boards of directors through high-profile acquisitions. Justin Rosenberg  left the firm in April 2024.