COMFORT SYST. USA DL-,01 revenue for the last year amounted to 6.79 B EUR, the most of which — 5.34 B EUR — came from its highest performing source at the moment, Mechanical Services, the year earlier bringing 3.58 B EUR. The greatest contribution to the revenue figure was made by United States — last year it brought COMFORT SYST. USA DL-,01 6.79 B EUR, and the year before that — 4.72 B EUR.