Bidtellect is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Bidtellect has better usage coverage in more websites categories. Including News & Media, Arts & Entertainment, People & Society, Computer & Electronics and 46 other categories.
Open AdExchange is leading in Business & Industry, Marketing & Advertising, Real Estate, Newspapers and 11 other categories.
Bidtellect is leading in most countries, including United States, United Kingdom, Ukraine, Germany and 21 other countries.
Open AdExchange is leading in Denmark and Norway.