PostHog
Open-source, self-hostable suite of developer tools — product analytics, session replay, feature flags, A/B testing, error tracking, and data warehouse — sold directly to software engineers and product teams who want all customer data in one stack without sending it to third parties.
Evidence notes
Who uses it: Product engineers and engineering-led teams at startups and growth-stage software companies who own the infrastructure and instrumentation decisions.[8]+4Reported
Financing: Series E was $75,000,000 on 2025-09-30.[5]+2Reported
Product: Open-source codebase (top 0.01% on GitHub) with self-hosted or PostHog-managed cloud options; event autocapture plus custom SDK instrumentation feeds ClickHouse-backed analytics; feature flags and experiments ship through the same SDK; a built-in data...[8]
Source ledger
- [1]Meet PostHog, A Startup That Just Raised A $70M Series D Led By Stripe From A Single Tweet
- [2]PostHog raises $70M to streamline software development projects - SiliconANGLE
- [3]PostHog Raises $70M in Series D Funding; at $920M Valuation
- [4]PostHog Secures $70M Series D, Reaches $920M Valuation | Built In
- [5]PostHog Becomes Unicorn With USD 75 Mn Funding Led by Peak XV