SegmentStream
London attribution and budget optimisation engine with identity graph, predictive attribution and CRM funnel attribution
Quick Overview
| Company | SegmentStream Ltd |
|---|---|
| Category | Marketing Attribution Software |
| Headquarters | London, United Kingdom |
| Founded | Not stated |
| EU Presence | Yes - United Kingdom (UK) |
| Data Location | US or EU data residency |
| Open Source | No |
| GDPR Compliant | Yes |
| Self-Hosting | No |
| Main Features | Identity graph, cross-channel attribution, predictive attribution, self-reported re-attribution, CRM funnel attribution, marginal ROAS, scenario planning, automated allocation, incrementality testing, MCP access |
| Pricing | Per project after a discovery call; no seat cap |
| Best For | Marketing teams with long journeys, CRM revenue or offline conversions |
| Replaces | Triple Whale, Rockerbox |
Detailed Review
SegmentStream sells a measurement engine that stitches sessions, devices and CRM records into one journey, attributes revenue across channels and recommends budget moves. It supports GA4, BigQuery, HubSpot and Salesforce as data sources and more than 20 ad platforms.
The site is operated by SegmentStream Ltd, registered in England and Wales under company number 11472676, with its office at 66 Paul Street, London. Enterprise terms include a choice of US or EU data residency.
Beyond Click-Based Credit
Self-reported re-attribution asks buyers how they heard about the company and reassigns conversions that were credited to direct or brand search. CRM funnel attribution connects offline conversions, so channels are judged on revenue and not only on leads.
Predictive Attribution and Budgets
Predictive attribution shows expected conversions next to observed ones, so recent campaigns are not judged only on what has already closed. Marginal ROAS and scenario planning show where extra spend stops paying off, and automated allocation applies the result across connected platforms.
AI Workspace
An MCP server lets Claude, Cursor, ChatGPT or any MCP client query the engine and generate reports. The privacy policy lists the sub-processors behind this, including Anthropic for AI processing.
Limitations to Consider
SegmentStream quotes every project after a discovery call, so there is no price to compare and no self-serve tier. The privacy policy lists US sub-processors such as Google, Anthropic, Cloudflare and Vercel, with locations given as the United States and Europe, so EU-only processing needs to be agreed in the contract. For a fixed-price entry, Eulerian publishes a free tier.
Who Should Use SegmentStream
Teams with long buying journeys, CRM revenue or offline conversions that want attribution and budget optimisation from a UK vendor with expert onboarding.
Pros and Cons
Pros
- Identity graph across sessions, devices and CRM
- Predictive and self-reported attribution
- Marginal ROAS and scenario planning
- EU or US data residency on enterprise terms
- No per-seat charge
Cons
- No published prices
- US sub-processors listed
- No self-serve plan
- Onboarding is consultancy-led
Alternatives to SegmentStream
Other European marketing attribution software worth comparing before you decide:
Klar
Germany · Multi-touch attribution and profit reporting for ecommerce brands
Dreamdata
Denmark · B2B revenue attribution tied to accounts and CRM deals
Funnel
Sweden · Marketing data hub with MMM, MTA and incrementality testing
Sellforte
Finland · Incrementality testing and marketing mix modelling for large media budgets
See all European marketing attribution software or compare them directly against Triple Whale on our alternatives page.
Frequently Asked Questions
SegmentStream Ltd is registered in England and Wales under company number 11472676, with its registered office at 66 Paul Street, London.
No. Pricing is per project after a discovery call, with no seat cap and no per-user charge.
Yes. CRM funnel attribution connects CRM and offline conversions so that revenue, not only leads, is credited to channels.