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, Business & Industry, People & Society, Arts & Entertainment and 56 other categories.
Open AdExchange is leading in Shopping, Marketing & Advertising, Newspapers, Relationships & Dating and 9 other categories.
Bidtellect is leading in most countries, including United States, United Kingdom, Australia, Italy and 32 other countries.
Open AdExchange is leading in Denmark.