Adebayo O. Ogunlesi, chairman of Global Infrastructure Partners, who joined Goldman Sachs's board in October, will head the risk committee of Goldman Sachs. Stephen Friedman, 75, who led the board's risk committee so far, is leaving as required by the investment bank's age-based retirement policy, according to a regulatory filing yesterday by the New York-based firm.

Mr. Ogunlesi is well-known on Wall Street, having run the investment bank at Credit Suisse in the last decade. Since 2006, he has run Global Infrastructure Partners, a private equity firm that invests in infrastructure deals like energy projects and water companies. The firm, one of the world's largest focused exclusively on infrastructure, announced in 2012 that it had raised $8.25 billion for its most recent fund.

Mr. Ogunlesi, known as "Bayo," is a native of Nigeria. He graduated from Oxford University and received law and business degrees from Harvard University.