Willis Towers Watson Public Limited Company revenue for the last year amounted to 9.48 B USD, the most of which — 5.58 B USD — came from its highest performing source at the moment, Health, Wealth & Career, the year earlier bringing 5.29 B USD. The greatest contribution to the revenue figure was made by United States — last year it brought Willis Towers Watson Public Limited Company 5.01 B USD, and the year before that — 4.76 B USD.