+1.6% incremental revenue
“The teams involved us throughout the project in a true spirit of co-construction.”
The future
of MMM
is live
- Data collection made simple: 30+ API connectors
- Refreshed at the frequency you choose
- Operational steering from your AI tools (MCP)
Budget simulator
Drag a slider, watch the ROAS move
Revenue14.1 M€
Blended ROAS4.98
Illustrative simulation. Sample data.
Success stories
What our MMM changed for them
+1.6% incremental revenue
“The teams involved us throughout the project in a true spirit of co-construction.”
+5.1% incremental visits
“From a media-measurement logic to a strategic growth-steering logic.”
+6.8% new customers
“Concrete and actionable outputs.”
+1.1% incremental revenue
“This visibility goes far beyond simple media measurement.”
“A key step in optimising our marketing investments. We were able to fully take ownership of the MMM methodology.”
+2.6% incremental revenue
“It answered long-standing questions about the revenue contribution of our media channels.”
In practice
From model to media plan, in weeks
1
Choose the frequency
Monthly, quarterly, twice a year or yearly: you are the one who sets how often your models are updated.
2
Plug in your sources
30+ native connectors pull your data from media, analytics, CRM and any other relevant platform.
3
Test the reallocation
Move budget from one channel to another: your overall ROAS is recomputed before a single euro is committed.
NEW
The model answers you, inside your AI tool
“What was my TV ROAS last month?” mediaAI answers inside the platform. And the MCP server brings your results into Claude, ChatGPT or Gemini, without leaving the tool your teams already have open.
MMMMCPModel Context Protocol
ClaudeDesktop
ChatGPTConnector
GeminiExtensionThe method
The first European platform to combine MMM, attribution & incrementality
Three methods, three readings of the same reality. Since 2024, mediaROI has made them work together for more reliable ROAS.
Marketing Mix Modeling
The full picture
100% of your levers, not just media: TV, digital, CRM, promotions, pricing.
Calibrated attribution
Day-to-day steering
The MMM corrects the platforms’ numbers. You decide on corrected ROAS.
Incrementality
The causal proof
Your incrementality tests (geo lift, conversion lift, A/B tests) inform the model’s priors, without forcing them.
The founding team
Twenty years of marketing measurement
Antoine Szalewski
CEO· Co-founder
Twelve years in media agencies, then eight years at Google, the last as Head of Measurement, Insights & Analytics.
Previously
GooglePublicisOmnicomWPP
David Sourenian
COO· Co-founder
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.
Previously
SnapXYahooIpsos
Florent Bolzinger
CTO· Co-founder
A biomechanics PhD turned data scientist, he founded three startups, one of them through Y Combinator, then built Heetch’s MMM.
Previously
HeetchY CombinatorHEC Paris
FAQ
3 questions to move forward
How much does a mediaROI MMM cost?
Two criteria set the price of a Marketing Mix Modeling project at mediaROI: the refresh frequency of your model and the number of metrics you want to study (revenue, new customers, leads…). It is a SaaS subscription with no commission on your budget.Contact us for a quote →
How long before the first results?
Time-to-value depends on your data and on your teams’ availability, and we would rather say so than give you a number we cannot hold.
What we control, we have industrialised, with the development of over 30 native API connectors. Our teams also handle data cleaning.
What remains is joint work: your teams know your promotions, your exceptions, your business. A marketing scientist works with them to get the model right.
You get a realistic schedule after the audit of your data.See all connectors →
What we control, we have industrialised, with the development of over 30 native API connectors. Our teams also handle data cleaning.
What remains is joint work: your teams know your promotions, your exceptions, your business. A marketing scientist works with them to get the model right.
You get a realistic schedule after the audit of your data.See all connectors →
Does the MMM replace my attribution tool?
No, it makes it reliable. The MMM is your source of truth (online, offline and external factors) and recalibrates your attribution, which on its own overvalues the last click. They work together, not against each other.See how the loop works →
Follow us on LinkedIn
Our analyses, our behind-the-scenes and our talks, post after post.
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 commentDiscover the platform
30 minutes to walk through a complete model and ask your questions