 DUBLIN , April 8, 2022 PRNewswire -- Aon plc NYSE: AON, a leading global professional services firm, plans to announce first quarter 2022 results on Friday, April 29 th, 2022 in a news release to be issued at 5:00 am Central Time. Greg Case, CEO, will host a conference call at 7:30 am Central Time on Friday, April 29th, 2022. 