EF-ON INC revenue for the last year amounted to 16.95 B JPY, the most of which — 15.71 B JPY — came from its highest performing source at the moment, Green Energy, the year earlier bringing 12.62 B JPY. The greatest contribution to the revenue figure was made by Japan — last year it brought EF-ON INC 16.95 B JPY, and the year before that — 13.26 B JPY.