CoStar Group, Inc. revenue for the last year amounted to 2.74 B USD, the most of which — 1.07 B USD — came from its highest performing source at the moment, Multifamily, the year earlier bringing 914.20 M USD. The greatest contribution to the revenue figure was made by North America — last year it brought CoStar Group, Inc. 2.60 B USD, and the year before that — 2.37 B USD.