SEI INVESTMENT CO revenue for the last year amounted to 44.31 B MXN, the most of which — 15.19 B MXN — came from its highest performing source at the moment, Investment Managers, the year earlier bringing 11.39 B MXN. The greatest contribution to the revenue figure was made by United States — last year it brought SEI INVESTMENT CO 37.88 B MXN, and the year before that — 27.86 B MXN.