Simpson Thacher & Bartlett has tapped a São Paulo-based partner to co-lead the firm’s Latin America practice alongside long-time head Todd Crider. Grenfel Calheiros joined Simpson Thacher in New York in 2003 and relocated to Brazil in 2013 to lead the firm’s São Paulo office. He advises on capital markets and M&A across Latin America—and in particular Brazil—representing leading companies, private equity sponsors and investment banks in IPOs, cross-border deals and other complex transactions. The firm said that Calheiros will oversee a team of six partners and more than 30 lawyers focused on Latin America together with Todd Crider, who has led Simpson Thacher’s Latin America practice for nearly a decade. “Grenfel has provided clients with sharp, commercially focused advice on some of Brazil’s most impactful capital markets and M&A transactions,” said Alden Millard, chair of Simpson Thacher’s executive committee. “His proven leadership in strengthening our Brazil practice and his deep regional expertise make him uniquely qualified to serve as co-head of our Latin America Practice.” The firm’s work in Latin America extends across industries ranging from technology, telecom, digital infrastructure and energy to financial services and consumer products.