Bayer A.G. revenue for the last year amounted to 51.79 B USD, the most of which — 25.16 B USD — came from its highest performing source at the moment, Crop Science, the year earlier bringing 26.45 B USD. The greatest contribution to the revenue figure was made by United States — last year it brought Bayer A.G. 15.77 B USD, and the year before that — 16.48 B USD.