EPAM SYS INC revenue for the last year amounted to 4.29 B CHF, the most of which — 4.27 B CHF — came from its highest performing source at the moment, Professional Services, the year earlier bringing 3.92 B CHF. The greatest contribution to the revenue figure was made by North America — last year it brought EPAM SYS INC 2.60 B CHF, and the year before that — 2.33 B CHF.