Parsons Corporation revenue for the last year amounted to 5.44 B USD, the most of which — 3.02 B USD — came from its highest performing source at the moment, Federal Solutions, the year earlier bringing 2.21 B USD. The greatest contribution to the revenue figure was made by United States — last year it brought Parsons Corporation 4.10 B USD, and the year before that — 3.20 B USD.