Exelon Corporation revenue for the last year amounted to 21.73 B USD, the most of which — 7.83 B USD — came from its highest performing source at the moment, Commonwealth Edison Company, the year earlier bringing 5.75 B USD. The greatest contribution to the revenue figure was made by United States — last year it brought Exelon Corporation 21.73 B USD, and the year before that — 19.08 B USD.