PostHog

What PostHog does

PostHog is an open-source developer product platform ("Product OS") that consolidates product analytics, session replay (web and mobile), feature flags, A/B experiments, surveys, error tracking, a managed data warehouse, a customer data platform with 120+ sources/destinations, AI observability for LLM applications, and an AI copilot into a single integrated suite. Its data layer is built on ClickHouse with high-volume services written in Rust and a proprietary Hog language running on a custom HogVM virtual machine (replacing earlier Node.js VMs); orchestration runs on Temporal and infrastructure sits on AWS across US-East-1 (Virginia) and EU-Central-1 (Frankfurt) with Cloudflare for edge/proxy and Wiz for security. The MIT-licensed core is self-hostable on Kubernetes, while advanced features and managed Cloud are sold as paid upgrades. The company targets product engineers, developers, and high-growth startups as its primary audience, with secondary positioning for HIPAA-regulated healthcare buyers and EU/privacy-conscious mid-market and enterprise customers. PostHog makes money through usage-based pay-per-event/recording/row pricing with generous free tiers (used by 98% of customers), Boost/Scale/Enterprise platform subscriptions (median annual contract value ~$54,443 per Vendr data) that unlock HIPAA BAAs, custom MSAs/DPAs, dedicated support and a 99.95% uptime SLA, and an inside-sales motion for mid-market and enterprise that runs alongside self-serve PLG signups. The company is headquartered in San Francisco, was founded in 2020 by James Hawkins and Tim Glaser, grew from 11 to over 150 employees, serves 300,000+ companies, reached $9.5 million in ARR in 2024 with 138% year-over-year growth, and achieved a $1.4 billion unicorn valuation in September 2025 via a $75 million Series E led by Peak XV Partners.

Name

PostHog

Legal name

PostHog, Inc.

Website

https://posthog.com

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

101–250 employees

Short description

PostHog is an open-source all-in-one developer platform ("Product OS") offering product analytics, session replay, feature flags, experiments, surveys, error tracking, a managed data warehouse, and a CDP, targeting product engineers, startups, and mid-market/enterprise buyers with usage-based pricing and HIPAA/GDPR-compliant Cloud and self-hosting options.

Ownership category

akta.pro rank

Product category

Product Analytics Platform

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)

SIC

Services-Prepackaged Software (7372), Services-Computer Programming Services (7371)

akta.pro primary industry

Game Backend & LiveOps Platforms (BaaS/Analytics/Hosting) (BPAMAKAL)

akta.pro secondary industry

Webhooks, Eventing & Message Streaming (BPAMAOAE)

Keywords

• Product analytics platform
• Session replay software
• Feature flag management
• A/B testing platform
• Customer data platform

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Offices6 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Infrastructure, Operations, Marketing or Sales

Revenue model

1. Usage-based / pay-per-use across all products: Primary revenue model: customers are billed by consumption of events, recordings, feature flag requests, warehouse rows, etc. Pricing decreases with volume. Generous free tiers mean 98% of customers use PostHog for free, with paid users driving revenue through expansion as their usage grows.
2. Freemium self-serve tier: All PostHog products include free monthly allowances (1M events, 5,000 recordings, 1M feature flag requests, 1M warehouse rows). Self-serve signup with no sales call required, used by the vast majority (98%) of customers.
3. Platform packages (Boost, Scale, Enterprise): Tiered subscription packages sold to mid-market and enterprise customers, unlocking HIPAA BAA eligibility, custom MSAs/DPAs, custom BAAs, dedicated support, advanced security features, and 99.95% uptime SLA on Enterprise. Median annual contract value approximately $54,443 per year (Vendr data).
4. Open-source self-hosted + managed Cloud dual offering: Open-core model where the MIT-licensed core is self-hostable for free, while proprietary/advanced features (session replay volume, advanced feature flags, A/B testing, surveys) and managed Cloud drive paid conversion. Some self-hosters also pay for support/Scale plans.

Pricing tiers

Go-to-market motion5 records

Distribution channels5 records

Marketing channels9 records

Core offering

PostHog provides an all-in-one open-source Product OS for product engineers, combining event-based product analytics, session replay, feature flags, A/B testing, surveys, error tracking, web analytics, logs, workflows, an API layer, a managed data warehouse, and a customer data platform with 120+ sources and destinations. The platform runs on a usage-based pricing model with generous free tiers (1M events, 5,000 recordings, 1M feature-flag requests, and 1M warehouse rows per month) and offers Boost, Scale, and Enterprise platform packages with HIPAA BAAs, custom DPAs/MSAs, and a 99.95% uptime SLA.

Product overview

PostHog is an all-in-one developer platform (marketed as "Product OS") for product engineers, built as a single open-source suite rather than a fragmented set of point tools. Its core product modules — Product Analytics, Web Analytics, Session Replay (including Mobile Session Replay), Feature Flags, Experiments (A/B testing), Surveys, Error Tracking, the Data Warehouse, the CDP, Logs, Workflows, and Endpoints — share a unified data layer so customers can analyze, test, observe, and deploy features in one place. Layered on top of this Product OS are PostHog AI (a generative-AI copilot for PostHog data) and AI Observability / LLM Analytics (for monitoring LLM-based applications), making the platform span product analytics, experimentation, observability, data warehousing, and AI tooling for engineering-led teams.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• $9.5M ARR in 2024 with 138% year-over-year growth
• +4 more outcomes

Named customers1 record

Segments6 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration12 records

AI capability7 records

Feature11 records

Partnerships

16 partnerships are on record, tiered distribution / marketplace integrations, flagship distribution partnership, core infrastructure subprocessor, core security subprocessor, standard vendor, core platform partner and standard product integrations.

• Stripe Projects ecosystem (Vercel, Railway, Supabase, Neon, Turso, Chroma, Clerk, RunloopAI)distribution / marketplace integrationsTechnology or Integration · 1 March 2026PostHog is integrated into Stripe's Stripe Projects CLI as a default analytics option alongside Vercel, Railway, Supabase, Neon, PlanetScale, Turso, Chroma, Clerk, and RunloopAI, allowing developers to assemble production-grade stacks with secure credential syncing. Currently in developer preview across US, EU, UK, and Canada.
• Lenny's Newsletterflagship distribution partnershipGTM or Marketing Partner · 1 December 2025Lenny's Newsletter offers all annual subscribers one full year of PostHog Scale plus double the free-tier credits (valued at $16,500) via the Lenny's Newsletter Product Pass — the first time PostHog has offered such a deal. Total Product Pass value exceeds $25,000.
• Amazon Web Services (AWS)core infrastructure subprocessorTechnology or IntegrationAWS is PostHog's core cloud data hosting subprocessor for both US Cloud (us-east-1, Virginia) and EU Cloud (eu-central-1, Frankfurt). Customers choose region for data residency.
• Cloudflarecore infrastructure subprocessorTechnology or IntegrationCloudflare provides PostHog's managed reverse proxy, edge network, content delivery, security, and traffic routing services. Operates global edge locations (dynamic, worldwide) for data in transit.
• Wiz, Inc.core security subprocessorTechnology or IntegrationWiz provides PostHog with security vulnerability management and detection, with processing located in Germany and France. Wiz also published detailed post-mortem research on the Shai-Hulud 2.0 supply-chain attack that affected PostHog.
• PlanetScale, Inc.core infrastructure subprocessorTechnology or IntegrationPlanetScale handles operations and performance monitoring of databases hosted on AWS, in both US and EU Cloud regions.
• Modal Labs, Inc.core infrastructure subprocessorTechnology or IntegrationModal Labs provides serverless compute infrastructure for isolated code execution, in both US and EU Cloud regions.
• Salesforcestandard vendorTechnology or IntegrationSalesforce is used by PostHog as a customer relationship management (CRM) tool for internal business operations; not a commercial product integration with PostHog Cloud.
• Zendeskstandard vendorTechnology or IntegrationZendesk is used by PostHog as its customer support tool for internal operations.
• Slackstandard vendorTechnology or IntegrationSlack is PostHog's internal communications tool; also referenced for webhook-based event streaming destinations to customer-facing Slack channels.
• GitHubcore platform partnerTechnology or IntegrationGitHub is PostHog's open source repository host and internal project management tool; the platform is the foundation of PostHog's open-source community and public-by-default handbook culture.
• Webhook & CDP destinations (Salesforce, HubSpot, Braze, Customer.io, Vitally, Gainsight, PagerDuty)standard product integrationsTechnology or IntegrationPostHog's CDP and webhook system supports syncing product usage data into SaaS tools such as Salesforce, HubSpot, Braze, Customer.io, Vitally, Gainsight, and PagerDuty for marketing activation, sales enablement, and operations.
• Substackstandard vendorTechnology or IntegrationSubstack is used as the newsletter delivery platform for PostHog's 'Product for Engineers' newsletter; PostHog shares subscriber email addresses with Substack for delivery.
• Google Cloud Platformstandard vendorTechnology or IntegrationGoogle Cloud Platform is used by PostHog as a cloud data infrastructure vendor for internal operations.
• Claystandard vendorTechnology or IntegrationClay is used by PostHog as a marketing data engine for internal operations.
• Ashbystandard vendorTechnology or IntegrationAshby is PostHog's applicant tracking system (ATS) used to process personal data of job applicants on PostHog's behalf.

Scale indicators11 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Sentry: Open-source application error tracking and performance monitoring; competes directly with PostHog's error tracking module for the same developer audience.
• FullStory: Digital experience analytics and session replay platform; competes with PostHog's session replay (web and mobile) modules.
• LogRocket: Session replay and product analytics platform focused on front-end debugging; overlaps with PostHog's session replay and product analytics offerings.
• Segment (Twilio): Customer Data Platform for collecting, transforming, and routing event data; competes with PostHog's CDP module and shares the same event-pipeline buyer.
• Statsig: Feature flagging, A/B testing, and product analytics platform; competes with PostHog's experimentation and analytics modules and targets a similar developer-led buyer.
• Amplitude: Public product-analytics platform competing head-to-head with PostHog's product analytics, experiments, and feature-flag offerings for the same product engineer persona at mid-market and enterprise customers.
• Mixpanel: Established product analytics platform with event-based pricing and experimentation features; one of PostHog's most direct competitors, especially with developer-led and PLG customers.
• Heap: Auto-captured product analytics platform; competes with PostHog's product analytics and has overlapping ICP in mid-market SaaS and product teams.
• LaunchDarkly: Enterprise feature-flag and experimentation platform; directly competes with PostHog's feature flags and experiments modules for the same engineering buyer.

Broad incumbents

• Datadog: Large public observability and monitoring platform that has expanded into product analytics, session replay (via Heatmap), and feature management; an incumbent that competes with PostHog's broader Product OS as part of a much wider portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat7 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/posthog
• GitHubgithub.com/posthog
• YouTubeyoutube.com/@posthog
• LinkedInlinkedin.com/company/posthog

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries2 records

Funding overview

Funding rounds7 records

Investors10 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about PostHog