
Marketecture: Get Smart. Fast. Episode 147: Mathieu Roche on the TrueData Acquisition and the Modern Market for Identity
Nov 7, 2025
In this engaging discussion, Mathieu Roche, CEO of ID5, shares insights on ID5's acquisition of TrueData, which aims to revolutionize identity solutions in advertising. He emphasizes the significance of integrating identity graphs with devices, enhancing match rates for effective targeting. Mathieu also navigates the ongoing debate between deterministic and probabilistic identity, highlighting trade-offs in precision. With TrueData's robust capabilities, the partnership signals a transformative era in identity technology.
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IDs + Graphs Improve Match Rates
- ID5 makes devices addressable and recognizable over time by providing an ID stored on the device.
- TrueData adds a graph layer to stitch emails, cookies, and other identifiers to users and households for higher match rates.
Deterministic Foundation, Algorithmic Linking
- ID5's ID is stored on devices, giving a deterministic foundation for recognition.
- Algorithms then link sessions across IPs, browsers, and apps to expand reach and continuity.
End-To-End Identity Lowers Friction
- Combining an ID with a graph reduces vendor count and keeps stitching at a granular signal level.
- That combined approach increases match rates for applying offline data to online devices.
