Gibson Dunn Accelerates Growth of Top-Tier Transactional Capabilities in New York, Adding Debt Finance Partner Dean Masuda

Firm News  |  June 30, 2025


Gibson Dunn announced today that Dean Masuda has joined the firm’s New York office as a partner in the Finance Practice Group. A leading debt finance lawyer, Dean advises private equity sponsors and their portfolio companies on leveraged acquisition financings.

“Dean is an incredibly versatile finance lawyer and an exciting addition to our growing team in New York,” said Aaron F. Adams, Co-Chair of the firm’s Finance Practice Group. “Dean is thoughtful, energetic, and entrepreneurial, and his deep experience navigating large cap syndicated and privately placed leveraged acquisitions will be invaluable to our clients as they look for market opportunities.”

“Gibson Dunn has an outstanding reputation and a clear emphasis on transactional growth, with private equity as a primary driver, and I’m thrilled to begin the next chapter of my career as a member of the fast-growing team,” said Dean. “As funds continue to deploy capital in today’s market, choosing the right financing structure can be critical to realizing success. The synergies between Gibson Dunn’s finance and dealmaking teams are seamless, resulting in creative solutions that help clients best meet their investment objectives. I look forward to working alongside these exceptional, collaborative colleagues to continue the upward trajectory of the firm’s premier transactional platform.”

The firm’s transactional practices in New York have experienced significant synergistic growth with the addition of more than a dozen lateral partners over the past few years. Recent arrivals include capital markets partner Michael Saliba, private credit partner Ryan Kim, M&A partner George Sampas, private equity partner Brian Scrivani, and special situations partner Caith Kushner.

About Dean Masuda

Dean represents private equity sponsors and their portfolio companies as they navigate complex leveraged financing transactions. He has represented some of the most well-known investment firms in the market.

Prior to joining Gibson Dunn, Dean served as a partner at an international law firm. He earned his law degree from Columbia Law School in 2015, where he was a Harlan Fiske Stone Scholar.