RELX PLC revenue for the last year amounted to 11.66 B USD, the most of which — 3.99 B USD — came from its highest performing source at the moment, Risk, the year earlier bringing 3.52 B USD. The greatest contribution to the revenue figure was made by North America — last year it brought RELX PLC 6.78 B USD, and the year before that — 6.05 B USD.