AON PLC (IE) COM USD0.01 CL A revenue for the last year amounted to 15.70 B USD, the most of which — 10.52 B USD — came from its highest performing source at the moment, Risk Capital. The greatest contribution to the revenue figure was made by United States — last year it brought AON PLC (IE) COM USD0.01 CL A 7.67 B USD, and the year before that — 5.92 B USD.