About mediaROI
Since 2024, we've been building the AI-native platform for unified marketing measurement across MMM, attribution and incrementality.
Our platform
mediaROI is a Unified Marketing Measurement SaaS platform that unifies Marketing Mix Modeling (MMM), attribution and incrementality measurement.
Our mission
Our ambition is to democratize access to the best of marketing science and enable advertisers, regardless of their size, to measure, understand, and optimize the real impact of every euro spent on media.
Our values
- Transparency100% agnostic. Full access to the raw diagnostics that matter for model reading (R², MAPE, diagnostics, etc.)
- ExcellenceFrom preparation to delivery, every step is rigorous and documented.
- TrustClose collaboration with your partners, publishers, and media agencies.
Twenty years of marketing measurement
Twelve years in media agencies, then eight years at Google, the last as Head of Measurement, Insights & Analytics.
Six years in market research at Ipsos and Harris, then twelve years on the platform side, at Yahoo, X and finally Snap, as Head of Marketing Science Europe.
A data scientist specialised in growth marketing, he built Heetch’s MMM in-house, then those of 10+ clients. Serial entrepreneur, PhD and MBA.
Our areas of expertise
mediaROI on the world’s largest startup campus
We were part of the first batch of the F/ai program at Station F in Paris, France, in January 2026, and our offices are still there.
How you get into F/ai
Selection is based on the AI-native nature of the product, international ambition, and a demonstrated potential to reach one million euros in revenue within six months.
Follow us on LinkedIn
Our analyses, our behind-the-scenes and our talks, post after post.
Antoine SzalewskiCEO · September 2026For me, September is not a one-week return: it opens a four-month sprint. The team is growing, and this autumn will also be about meeting people in the field.
109 reactions · 7 commentsDavid SourenianCOO · September 2026Ten years later, a client quoted my own arguments back to me. Today, my job is to remain neutral: measuring every medium for what it really delivers, without favourites.
45 reactions · 1 comment
mediaROIAugust 2026ChatGPT Ads just went live. One more channel, and one more reason to measure every lever on the same footing: inside the MMM, next to search, social and retail media.
11 reactionsAntoine SzalewskiCEO · August 2026Since January, mediaROI has had its offices at STATION F, in the first F/AI batch. Six months on, what the team takes from it. 173 reactions · 13 commentsDavid SourenianCOO · August 2026At Snap, I spent four years explaining incrementality to advertisers. An infographic showing the gap between the ROAS a platform reports and incremental ROAS.
45 reactions · 1 commentAntoine SzalewskiCEO · August 2026“With our office neighbours at Station F, we did not just share coffees: we shared ideas.” How to bring an AI visibility score into the MMM, with GetMint.
54 reactions · 1 commentmediaROIAugust 2026[Press review] Our founder and CEO was Minted’s guest, on a subject at the heart of what we do: how AI is transforming Marketing Mix Modeling.
28 reactionsDavid SourenianCOO · July 2026“We have all trusted digital a little too much.” After years leading measurement on the platform side, the Unified Marketing Measurement method presented on stage.
59 reactions · 1 comment