COLLIERS INTL GRP INC. SV revenue for the last year amounted to 4.64 B EUR, the most of which — 2.82 B EUR — came from its highest performing source at the moment, Real Estate Services. The greatest contribution to the revenue figure was made by United States — last year it brought COLLIERS INTL GRP INC. SV 2.37 B EUR, and the year before that — 2.18 B EUR.