Appel to Leave Aon

Aon Corp. reported that Andrew Appel, the firm’s chief operating officer, will be leaving the company at the end of the year.

The company said that at the present time there are no plans to fill the position upon Appel’s departure.

Appel has held multiple roles in the firm over the past five years, including with Aon Consulting and Aon Benfield as chief executive officer, and more recently as chief operating officer of Aon.

Greg Case, Aon president and chief executive officer, said Appel is leaving the firm to pursue additional challenges.