COMFORT SYST. USA DL-,01 revenue for the last year amounted to 4.72 B EUR, the most of which — 3.58 B EUR — came from its highest performing source at the moment, Mechanical Services, the year earlier bringing 2.97 B EUR. The greatest contribution to the revenue figure was made by United States — last year it brought COMFORT SYST. USA DL-,01 4.72 B EUR, and the year before that — 3.87 B EUR.