OKUMURA ENGINEERING CORP revenue for the last year amounted to 9.16 B JPY, the most of which — 4.64 B JPY — came from its highest performing source at the moment, Marine Use, the year earlier bringing 4.17 B JPY. The greatest contribution to the revenue figure was made by Japan — last year it brought OKUMURA ENGINEERING CORP 6.91 B JPY, and the year before that — 6.25 B JPY.