PostHog
Open-source product analytics suite for developers — event tracking, session replay, feature flags, A/B testing, and surveys.
B2B SaaS
📍 San Francisco, CA
Founded 2020
Current Valuation
$1.4B
as of 2025-Q4
UNICORN
PostHog is an open-source, all-in-one product analytics platform built for engineers, consolidating event tracking, session replay, feature flags, A/B testing, surveys, and a data warehouse in a single self-hostable or cloud product. The Y Combinator W20 alumnus raised a $75M Series E in September 2025 at a $1.4B valuation led by Stripe, with previous funding led by GV.
Company Profile
Last Round
Series E — $75M (Sep 2025) · Lead: Stripe
Founders & Key People
James HawkinsTim Glaser
Investors
Stripe · GV (Google Ventures) · Y Combinator · Formus Capital · Hanabi Capital
Products
- Product Analytics
- Session Replay
- Feature Flags
- Experiments (A/B testing)
- Surveys
- Data Warehouse
- LLM Observability
Competitors
Amplitude · Mixpanel · Heap · LaunchDarkly · Fullstory · Hotjar
developer-toolsanalyticsopen-sourceycsaas
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2025-Q4. Refreshed quarterly.