Keio Corp. revenue for the last year amounted to 2.70 B USD, the most of which — 808.48 M USD — came from its highest performing source at the moment, Transportation, the year earlier bringing 824.49 M USD. The greatest contribution to the revenue figure was made by Japan — last year it brought Keio Corp. 2.70 B USD, and the year before that — 2.61 B USD.