ISS AS DK 1 revenue for the last year amounted to 11.20 B EUR, the most of which — 4.11 B EUR — came from its highest performing source at the moment, Office-based, the year earlier bringing 4.11 B EUR. The greatest contribution to the revenue figure was made by Other — last year it brought ISS AS DK 1 3.64 B EUR, and the year before that — 3.87 B EUR.