SSeedtag
Seedtag is a Madrid-founded adtech company that runs a privacy-first, cookieless contextual advertising platform, using AI and machine learning to read the content, emotion and intent of a page or video and place ads accordingly across display, online video and CTV. Founded in 2014 by two ex-Googlers, it has grown to roughly 700+ employees across 17 countries with offices including Madrid, New York, London, Paris and Mexico City, and now markets itself as a 'neuro-contextual advertising' company. It is one of Spain's best-known adtech scale-ups, having raised over €250M from Advent International in 2022 (a €270M deal that included secondary purchases), after earlier rounds led by Oakley Capital and Adara Ventures; it also acquired JustEggs Digital in 2024.
Profile updated 15 Aug 2026
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Investors 6
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