Serco Group Plc. revenue for the last year amounted to 6.20 B USD, the most of which — 3.11 B USD — came from its highest performing source at the moment, United Kingdom and Europe, the year earlier bringing 2.54 B USD. The greatest contribution to the revenue figure was made by United Kingdom — last year it brought Serco Group Plc. 2.37 B USD, and the year before that — 2.08 B USD.