LONDON, April 6, 2018 -- Aon plc (NYSE: AON), the leading global professional services firm providing a broad range of risk, retirement and health solutions, plans to announce first quarter 2018 results on Friday, May 4th, 2018 in a news release to be issued before the market opens. Greg Case, president and CEO, will host a conference call at 7:30 am Central Time on Friday, May 4th, 2018. The conference call will be broadcast live through Aon's website at www.aon.com. Adobe Flash is required to listen to this webcast. A replay will be available shortly after the live webcast. The earnings release and supplemental slide presentation will be available on Aon's web site at www.aon.com.