Oakley Capital (‘Oakley’), the pan-European private equity investor, is pleased to announce that portfolio company Seedtag the leader in contextual advertising in EMEA and LATAM, is acquiring KMTX (previously Keymantics), a leading French company specialised in building AI models to optimise and automate performance marketing campaigns.

Icons8 Mind Map

KMTX is a fast-growing AI-based performance marketing platform
Working with 200+ marketing agencies and international blue-chip brands

Icons8 Fast Forward

Accelerate development
Seedtag’s performance advertising offering and full-funnel cookie-less solutions


KMTX focuses on delivering mid and low funnel KPIs to advertisers.

Founded in Paris in 2017 before launching its products commercially in 2019, KMTX has leveraged its proprietary AI and performance advertising solutions to drive exponential growth across its core market in France.

Over the past five years, we have built a successful business helping advertisers make better media buying decisions. With Seedtag we share a common vision to make internet advertising simpler through data-driven media investment.

Arthur Querou

CEO and Co-Founder — KMTX


Seedtag helps brands and agencies deliver digital advertising that is directly relevant to the content that readers are consuming, meeting growing market demand for cookie-less solutions that protect brands and prioritise consumer privacy.

Seedtag – The leading contextual advertising platform in Europe and LATAM.

Oakley leveraged its deep media expertise and strong track record growing digital businesses to invest in Seedtag in 2021, attracted by its proprietary software and entrepreneurial team.

Combining KMTX’s models with Seedtag’s contextual data will enable the business to provide advertisers with a full-funnel cookieless solution that delivers outstanding results across branding and performance marketing campaigns. The integration of Paris-based KMTX into Seedtag’s contextual full stack also complements Seedtag’s business in the French market. KMTX’s employees will be incorporated into Seedtag’s existing workforce, joining the commercial and tech teams.

Quote Jorge Poyatos and Albert Nieto

We’re delighted to welcome the KMTX team into the Seedtag family. Acquiring KMTX allows us to combine AI-based predictive models with our proprietary contextual data, further advancing our mission to become the number one global contextual advertising partner for brands and agencies as we expand into new regions including the US.

Jorge Poyatos and Albert Nieto

Co-Founders and Co-CEOs — Seedtag

Quote Peter Dubens

We’re pleased to support Seedtag as the business sustains its strong trajectory, underpinned by organic growth, product development, internationalisation and now M&A. We believe KMTX will add significant value to Seedtag and we look forward to working with the combined team as they build Seedtag into the leading provider of cookie-less marketing solutions in a privacy-first world.

Peter Dubens

Managing Partner — Oakley Capital

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