BELLSYSTEM24 HLDGS O.N. revenue for the last year amounted to 917.53 M EUR, the most of which — 1.08 B EUR — came from its highest performing source at the moment, Customer Relationship Management, the year earlier bringing 1.13 B EUR. The greatest contribution to the revenue figure was made by Japan — last year it brought BELLSYSTEM24 HLDGS O.N. 1.08 B EUR, and the year before that — 1.14 B EUR.