Leading pre-bid solutions providers used by publishers in the United States 2017

The data displays the Leading header bidders used by publishers in the U.S. as of November 2017. In the measured period it was found that approx. 61% of the studied U.S. publishers used AppNexus for header bidding. Header bidding, or pre-bidding is part of the programmatic advertising process where publishers offer inventory simultaneously to multiple partners before addressing their ad servers.