SYSTEM1 GROUP PLC ORD GBP0.01 revenue for the last year amounted to 30.00 M GBP, the most of which — 22.77 M GBP — came from its highest performing source at the moment, Communications (Ad Testing), the year earlier bringing 15.88 M GBP. The greatest contribution to the revenue figure was made by United Kingdom — last year it brought SYSTEM1 GROUP PLC ORD GBP0.01 12.69 M GBP, and the year before that — 8.89 M GBP.