Case has served in these roles since April 2005, when he joined the firm.
"Greg continues to do a terrific job leading Aon," said Lester Knight, non-executive chairman and director of Aon. "Under Greg's leadership, the firm is well-positioned to enhance shareholder value."
"Thanks to the tremendous work of our team members around the world, the core foundation of Aon continues to improve and is stronger than ever," Case said. "I am grateful for the support of the Aon Board of Directors, and deeply appreciative of the opportunity to work with my Aon colleagues to serve our valued clients and continue to build our great firm."
Case currently serves on the boards of Discover Financial Services, the International Insurance Society Inc., Children's Memorial Hospital, The Field Museum of Chicago, the Economic Club of Chicago, the Chicago Symphony Orchestra and the St. John's University School of Risk Management, where he was named the 2008 Insurance Executive of the Year.
