MARSH+MCLENNAN COS.INC.D1 revenue for the last year amounted to 20.45 B EUR, the most of which — 12.76 B EUR — came from its highest performing source at the moment, Risk and Insurance Services, the year earlier bringing 11.81 B EUR. The greatest contribution to the revenue figure was made by United States — last year it brought MARSH+MCLENNAN COS.INC.D1 9.90 B EUR, and the year before that — 9.54 B EUR.