Gartner, Inc. revenue for the last year amounted to 5.91 B USD, the most of which — 4.89 B USD — came from its highest performing source at the moment, Research, the year earlier bringing 4.60 B USD. The greatest contribution to the revenue figure was made by United States and Canada — last year it brought Gartner, Inc. 3.91 B USD, and the year before that — 3.62 B USD.