The Urbandale Chamber of Commerce will hold a CEO panel at an Aug. 20 luncheon. Panelists will include Martha Willits, former president and CEO of the Greater Des Moines Partnership, Curt Leaverson, owner and CEO of Pivot Works, and Chris Vernon, president and chief operating officer of Vernon Co. The event will take place from 11:30 a.m. to 1 p.m. at Ramada Tropics Resort & Conference Center, 5000 Merle Hay Road. Registration is $20 for members and $30 for nonmembers; to register,