RELX PLC PLC revenue for the last year amounted to 11.81 B USD, the most of which — 4.15 B USD — came from its highest performing source at the moment, Risk, the year earlier bringing 3.89 B USD. The greatest contribution to the revenue figure was made by North America — last year it brought RELX PLC PLC 6.98 B USD, and the year before that — 6.62 B USD.