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Ana Cabral Gardner

Co-Chairperson and Chief Executive Officer, Sigma Lithium

Ana Cabral-Gardner is the co-CEO and the co-Chair of Sigma Lithium. Sigma is one of the largest mineral lithium companies in the western hemisphere. Ana has served on the board as a co-chairman since its IPO in Canada in 2018.  


She is also Managing Partner and co-founder of A10 Investimentos, a Brazilian private equity boutique focused on Sustainable Investments. 


Ana has over 25 years of experience as a senior banker at global investment banks in New York, London, and Sao Paulo and over 15 years of experience as a venture capital investor.  

Prior to founding A10, Ana was Head of Latin American Capital Markets at Goldman Sachs in New York. She was one of the four executive managing directors Goldman assigned to Brazil to build its local banking and markets operations in 2007. Ana was also Head of Latin American investment banking consumer & healthcare at Barclays in Sao Paulo. She has also held senior positions in investment banking at Merrill Lynch in London and New York for over 8 years.  

As a venture capitalist, Ana was a co-founder of an internet portal sold to GP Investimentos in early 2000. Afterward, she advised several boards of media & technology companies on digital strategies, including: Lojas (later merged with B2W), Turner Broadcasting Latin America and (later  


Along with her career, Ana has been involved in over 110 capital markets and M&A transactions, totaling approximately US$ 150 billion. Five of the transactions she led won the prestigious IFR” Deal of the Year” award including the Privatization of Vale in 1996 and the Brazilian government partial divestiture of Petrobras in 2000.  


She has an MBA degree from Columbia Business School and a Masters in Finance degree from London Business School. She currently serves on the Global Board of Advisors of Columbia University Global Centers. She also serves on the Centennial Board of the American School of Sao Paulo.  


Ana was one of the 40 original co-founders of Mulheres do Brasil with Luiza Trajano. MB is Brazil’s largest female leaders’ organization with over 105,000 active members, focused on women oriented policy-making and advocacy, with branches in ten countries.  

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