KEIO CORPORATION revenue for the last year amounted to 408.69 B JPY, the most of which — 122.37 B JPY — came from its highest performing source at the moment, Transportation, the year earlier bringing 109.54 B JPY. The greatest contribution to the revenue figure was made by Japan — last year it brought KEIO CORPORATION 408.69 B JPY, and the year before that — 347.13 B JPY.