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, Internet & Telecom and 48 other categories.
Open AdExchange is leading in Business & Industry, Shopping, Marketing & Advertising, Real Estate and 13 other categories.
Bidtellect is leading in most countries, including United States, Canada, United Kingdom, Sweden and 17 other countries.
Open AdExchange is leading in Denmark, Norway and Japan.