Appel has held a number of senior leadership positions for Chicago-based professional service firms. As chief operating officer at Aon, Appel developed and implemented a successful revenue growth plan for the company. He also led the team responsible for the $5 billion acquisition of Hewitt, solidifying Aon’s leading position in human resource consulting and outsourcing. Prior to this, Appel was chief executive officer of two of the firm’s three global divisions: Aon Consulting, a leading benefits and human resources consulting firm, and Aon Benfield, the world’s largest reinsurance broker. Under his leadership, the divisions achieved operational excellence and improved financial results.
Prior to joining Aon, Appel was a senior partner at McKinsey and Company where, during a 15-year career, he advised leading global financial institutions on a wide array of operational, strategic and organizational issues. Appel joins SymphonyIRI from Accretive Health, where he was senior vice president of revenue operations.