Dr. Joanne Sonin

Senior finance professional, Close Group Consulting

Environmental, social, and governance (ESG), corporate finance, ESG strategy and implementation, shareholder, stakeholder, corporate purpose, regulatory requirements, ESG advising for investors



Joanne Sonin is a senior finance professional providing corporate-finance, strategic, and organisational advice to management teams, company boards, capital providers, and investors. Sonin has over 20 years of experience working in global financial markets as an advisor, principal, and senior corporate executive. Leveraging her experience in corporate finance and her expertise in company law, she works with clients to integrate value-creating ESG and corporate purpose into core strategies, decisions, and processes. She has worked as an investment banker at several global firms, including Citigroup, JP Morgan, and Deutsche Bank. Throughout her career she has been based in various jurisdictions, including London, New York, Sydney, and Tel Aviv, executing a wide range of M&A and capital-markets transactions in EMEA, North America, Australia, and Asia. She has worked with a range of different industries, with a particular focus on the financial institutions and real estate sectors. Sonin is currently a Visiting Fellow at the Law School of the London School of Economics and Political Science, from where she earned a PhD in company law. Her research focuses on the questions of shareholder and stakeholder interests, corporate behaviour, corporate purpose, and legal reform. She also earned an MBA from the MIT Sloan School of Management, a PhD from the University of Cambridge, and a BA from The Hebrew University of Jerusalem.


  • environmental, social, and governance (ESG)
  • corporate finance
  • ESG strategy and implementation
  • shareholder
  • stakeholder
  • corporate purpose
  • regulatory requirements
  • ESG advising for investors