EF-ON INC revenue for the last year amounted to 17.47 B JPY, the most of which — 15.10 B JPY — came from its highest performing source at the moment, Green Energy, the year earlier bringing 15.71 B JPY. The greatest contribution to the revenue figure was made by Japan — last year it brought EF-ON INC 17.47 B JPY, and the year before that — 16.95 B JPY.