QUEST CO LTD revenue for the last year amounted to 14.20 B JPY, the most of which — 8.76 B JPY — came from its highest performing source at the moment, System Development, the year earlier bringing 6.58 B JPY. The greatest contribution to the revenue figure was made by Japan — last year it brought QUEST CO LTD 14.20 B JPY, and the year before that — 11.81 B JPY.