Ciena Corporation revenue for the last year amounted to 4.01 B USD, the most of which — 3.04 B USD — came from its highest performing source at the moment, Networking Platforms, the year earlier bringing 3.49 B USD. The greatest contribution to the revenue figure was made by United States — last year it brought Ciena Corporation 2.80 B USD, and the year before that — 2.80 B USD.