DROPBOX INC CL. A revenue for the last year amounted to 2.27 B EUR, the most of which — 2.27 B EUR — came from its highest performing source at the moment, Collaboration Platform, the year earlier bringing 2.17 B EUR. The greatest contribution to the revenue figure was made by United States — last year it brought DROPBOX INC CL. A 1.29 B EUR, and the year before that — 1.18 B EUR.