SegmentStream
Multi-channel marketing attribution platform to measure the impact of each advertising dollar spent and optimize return on investment
Overview
SegmentStream is a marketing attribution and incrementality measurement platform that credits each conversion to all advertising touchpoints that drove it (Google Ads, Meta, LinkedIn, TikTok, etc.). The Online plan ($800/month, self-serve, billable quarterly) targets e-commerce and DTC businesses with short conversion cycles; Full Funnel ($1,200/month, self-serve) adds funnel modeling for B2B enterprises or long sales cycles; Enterprise ($5,000/month minimum) offers server-side tracking, incrementality testing (randomized experiments to measure true channel impact) and AI-powered budget optimization.
SegmentStream has no French-language interface and remains English-only. The platform exposes an API and supports MCP (Model Context Protocol) for integrating attribution into third-party tools or AI agents. The main strength is incrementality measurement: rather than simply counting who clicked, the tool tests real campaign impact by comparing exposed customers against a control group. This type of analysis requires analytical and statistical maturity from the user: small marketing teams without data backgrounds may find the tool oversized.
Our verdict
Best for SME e-commerce and SaaS B2B spending over $50,000/month on multi-channel advertising and wanting to understand true ROI for each dollar invested beyond last-click. Not for you if your sales cycles are very long (real estate, finance) or your marketing stack is simple: the complexity and pricing don't pay off.