Spirent Communications Plc revenue for the last year amounted to 460.20 M USD, the most of which — 281.83 M USD — came from its highest performing source at the moment, Networks & Security, the year earlier bringing 336.77 M USD. The greatest contribution to the revenue figure was made by United States — last year it brought Spirent Communications Plc 256.43 M USD, and the year before that — 311.53 M USD.