Sovrn Reports 700M Uniques

Boulder-based online advertising company Sovrn Holdings, which is led by Walter Knapp, said it is now reaching more than 700 million unique visitors across its network of almost 20,000 publishers. According to Sovrn, it is now the world's fourth largest publisher network, with a global audience of over 423 million people. The company said its now reaches approximately 15 percent of the world's Internet users and 63 percent of the total US population. Sovrn operates a programmatic advertising exchange, which connects online publishers with third party advertisers.