Integral Ad Science Holding Corp. revenue for the last year amounted to 530.10 M USD, the most of which — 242.62 M USD — came from its highest performing source at the moment, Optimization, the year earlier bringing 224.47 M USD. The greatest contribution to the revenue figure was made by United States — last year it brought Integral Ad Science Holding Corp. 346.16 M USD, and the year before that — 310.82 M USD.