PROTO CORPORATION revenue for the last year amounted to 115.55 B JPY, the most of which — 75.53 B JPY — came from its highest performing source at the moment, Commerce, the year earlier bringing 68.55 B JPY. The greatest contribution to the revenue figure was made by Japan — last year it brought PROTO CORPORATION 115.55 B JPY, and the year before that — 105.60 B JPY.