In terms of market share, Harren Media is clearly lagging behind, losing to Open AdExchange in all segments.
Harren Media has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, TV & Video, Movies and 44 other categories.
Open AdExchange is leading in Marketing & Advertising, Travel, Real Estate, Newspapers and 13 other categories.
Harren Media is leading in most countries, including Brazil, Spain, Mexico, Argentina and 23 other countries.
Open AdExchange is leading in Denmark, Sweden, Gibraltar and Faroe Islands.