SYSTEM1 GROUP PLC ORD GBP0.01 revenue for the last year amounted to 23.41 M GBP, the most of which — 15.88 M GBP — came from its highest performing source at the moment, Communications (Ad Testing), the year earlier bringing 14.96 M GBP. The greatest contribution to the revenue figure was made by Americas — last year it brought SYSTEM1 GROUP PLC ORD GBP0.01 9.43 M GBP, and the year before that — 9.04 M GBP.