Sosuke Nagayama

Co-Lead of Defense, Security & Justice Deloitte Tohmatsu Group
Head of Defense, Security & Justice Financial Advisory

Sosuke joined Deloitte Tohmatsu Financial Advisory LLC in 2008. He has involved in a number of cross-border transactions, both inbound and outbound, across a wide range of industries including manufacturing, IT, and consumer business. In addition to financial due diligence, he has extensive experience in various areas such as post-merger integration (PMI), business restructuring projects, and IFRS implementation.

Since 2021, he has also served as an ESG Advisory (now Sustainability Advisory) specialist, leveraging the strengths of financial advisory to create value in addressing social agendas such as ESG and climate change, while fostering communication and building relationships both inside and outside the firm.

From 2023, he serves as COO of Deloitte Tohmatsu Space & Security LLC, a company focused on the defense and space sectors within the Deloitte Tohmatsu Group. He also leads Space sub-sector and dedicates his time to develop space business across the Group.

Certified Public Accountant

Related Services / Industries / Sectors

• Aerospace & Defense
• M&A