Advent International, a private equity investor, completed the $250m investment in Seedtag, a contextual advertising provider. Oakley Capital agrees partial exit. "We're very excited about this partnership with Advent. This investment will massively accelerate our US expansion, boost our growth and reinforce our team and the development of our technology. This move further supports our mission of building the global leading platform for contextual advertising, offering an effective solution for cookieless advertising on the open web," Jorge Poyatos and Albert Nieto, Seedtag Co-Founders and Co-CEOs.