Upstack Data

Upstack Data addresses the measurement problem paid advertising has been living with since browser tracking degraded: pixel data decays as cookies expire and customers move between devices, so conversions get attributed to nothing and ad platforms optimise on partial signal.

Its answer is server-side tracking plus identity resolution — visitors are matched against a large cross-brand device graph, so a returning customer resolves to the same person rather than appearing as a new one. On top of that sit multi-touch attribution and profit-level reporting, which is the more honest measure than revenue for a business with real margins.

The platform connects to Shopify, Meta, Google, TikTok, Stripe and Klaviyo among others, in both directions. Match rates and event-quality figures it publishes are vendor claims.