About PostHog
The open-source product stack on one event log.
PostHog was founded in 2020 by James Hawkins and Tim Glaser as a Y Combinator W20 batch company, built around an open-source core that customers can self-host or run on PostHog Cloud (US or EU residency). What started as a single product-analytics tool has grown into a bundled platform: Product Analytics, Session Replay, Feature Flags, Experiments, Surveys, Web Analytics, a Data Warehouse and an LLM observability product, all backed by the same event store and identity graph.
The reason to pull PostHog into a warehouse next to it is that the bundle works well one product at a time and gets brittle the moment a team wants to ask cross-product questions over a longer window. Funnel impact of a feature flag four months after the rollout, replay storage cost weighed against the insights replays unlocked over time, experiment significance once exposure overlap with other tests is corrected, self-hosted version lag against the latest schema on Cloud: those are the questions where the PostHog UI runs out of room. Next to Stripe revenue, HubSpot deals and support tickets, the same PostHog event log gets the cross-tool joins that decide the next quarter of the roadmap.