Posthog

Product Analytics

PostHog is a developer-focused analytics platform that combines product analytics, session replay, feature flags, A/B testing, surveys, and a data warehouse into a single open-source product.

Reviewed by 7wData
Share Email

On this page

Profile

PostHog provides an open-source, all-in-one product analytics platform that lets developers track user events, replay sessions, run A/B tests, manage feature flags, and analyze data without sending it to third parties.

PostHog is a developer-focused analytics platform that combines product analytics, session replay, feature flags, A/B testing, surveys, and a data warehouse into a single open-source product. Founded in 2020 by James Hawkins and Tim Glaser, the company has raised approximately $182 million in total funding, including a $70 million Series D led by Stripe in June 2025 at a $920 million valuation, followed by a $75 million Series E led by Peak XV Partners in October 2025 at a $1.4 billion valuation. As of February 2026, Sacra estimates PostHog reached $57.5 million in annual recurring revenue (ARR), up roughly 99% year-over-year from $28.9 million in February 2025.

The company employs about 124 people as of September 2025. PostHog’s product portfolio has expanded from its original product analytics tool to include web analytics, session replay, experiments, feature flags, surveys, a data warehouse, error tracking, and LLM observability. The company is now building a customer data platform (CDP) and has introduced PostHog AI, an open beta that can generate visualizations, write HogQL queries, and interact with the PostHog UI.

PostHog differentiates itself by offering self-hosting and a usage-based pricing model, targeting engineering teams who want to avoid sending data to third parties. The company’s growth has been fueled by product-led expansion within engineering teams, though it faces increasing competition from incumbents like Amplitude and Mixpanel, as well as newer entrants in the analytics space.

Track Posthog and 240+ vendors.

335k+ subscribers read the daily AI & data note. One email, both newsletters. Unsubscribe anytime.

Who buys this

  • Engineering teams at B2B SaaS companies
  • Product teams adopting product-led growth strategies
  • Startups and mid-market companies needing self-hosted analytics
  • Organizations with strict data privacy requirements
  • Developer-first companies that prefer open-source tools

Strengths and what to watch

Strengths

  • Open-source, self-hostable platform gives companies full control over customer data, a strong differentiator in privacy-conscious markets.
  • All-in-one product consolidates multiple tools (analytics, session replay, feature flags, A/B testing, surveys) into a single platform, reducing vendor sprawl for engineering teams.
  • Usage-based pricing model, rather than seat-based licensing, encourages broad adoption within engineering teams and drives expansion as event volume grows.

Watch for

  • PostHog faces intense competition from established analytics platforms like Amplitude and Mixpanel, which have larger sales teams and more enterprise features.
  • The company's rapid expansion into new product areas (CDP, AI, error tracking) increases execution risk and could dilute focus on its core analytics product.
  • PostHog's reliance on open-source adoption and developer word-of-mouth for growth may limit its ability to penetrate larger enterprises that require dedicated sales and support.

Recent moves

Key Information

Industry
Product Analytics
Founded
2020

Frequently Asked Questions

What is PostHog and what does it do?

PostHog is an open-source product analytics platform that helps developers track user events, replay sessions, run A/B tests, manage feature flags, and analyze data without sending it to third parties. It combines multiple tools into one platform.

How does PostHog's pricing model work?

PostHog uses a usage-based pricing model rather than seat-based licensing. This encourages broad adoption within engineering teams and drives expansion as event volume grows. Users pay based on how much they use the platform.

Can I self-host PostHog for data privacy?

Yes, PostHog offers self-hosting, giving companies full control over customer data. This is a strong differentiator for organizations with strict data privacy requirements that want to avoid sending data to third parties.

How much funding has PostHog raised and what is its valuation?

PostHog has raised approximately $182 million in total funding. This includes a $70 million Series D led by Stripe in June 2025 at a $920 million valuation, and a $75 million Series E led by Peak XV Partners in October 2025 at a $1.4 billion valuation.

Who are PostHog's main competitors?

PostHog faces competition from established analytics platforms like Amplitude and Mixpanel, which have larger sales teams and more enterprise features. It also competes with newer entrants in the analytics space.

What is PostHog's annual recurring revenue as of 2026?

As of February 2026, Sacra estimates PostHog reached $57.5 million in annual recurring revenue (ARR), up roughly 99% year-over-year from $28.9 million in February 2025. This growth reflects strong product-led expansion within engineering teams.

Sources

  1. sacra.com — Revenue estimate of $57.5M ARR in February 2026, Series E funding details, valuation, and growth rate.
  2. posthog.com — Series D funding announcement, product vision (customer infrastructure), and PostHog AI details.
  3. research.contrary.com — Company overview, founding date, headcount, total funding, product description, and market analysis.
  4. news.crunchbase.com — Series D funding details, Stripe's involvement, and the origin of the investment relationship.
  5. tracxn.com — Funding rounds summary, Series E details, and investor list.