Simpson Thacher & Bartlett LLP

Head of the Firm’s São Paulo office, Grenfel Calheiros advises clients on capital markets and M&A transactions, with a primary focus on Latin America and especially Brazil. His clients have included a range of leading companies, private equity sponsors and investment banks in IPOs and other securities offerings, cross-border acquisitions, and other complex corporate matters. Grenfel spent the first nine years of his career in Simpson Thacher’s New York office. He is currently ranked Band 1 by Chambers Brazil in Capital Markets (International Counsel). Grenfel is fluent in Portuguese.