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PostHog

Web analytics · United Kingdom
Founded 2020 · posthog.com

London-based open-source product analytics (PostHog, 2020, Y Combinator W20), US + EU Frankfurt cloud regions, MIT-licensed self-host.

PostHog offers EU hosting in the United Kingdom, but a US parent or sub-processor leaves material CLOUD Act exposure. It is listed under Web analytics.

Assessment notes

PostHog (founded 2020 by James Hawkins and Tim Glaser in London, Y Combinator Winter 2020 batch) is the open-source product-analytics platform with managed-cloud regions in US (Virginia) and EU (Frankfurt) plus a self-host edition for full control, but the cap table is anchored by Y Combinator + Google Ventures (GV) across roughly $194M raised over seven rounds at a ~$1.4B valuation, with Peak XV Partners leading the most recent round and Stripe among the investors (plus angels Jason Warner / Solomon Hykes / David Cramer); UK post-Brexit jurisdiction + heavy US-VC funding → eu_hq_us_funded ownership with material CLOUD Act exposure for the managed-cloud product; the self-host path on EU infrastructure removes US-vendor exposure entirely.

Findings

CLOUD Act
Ownership
Sub-processors
5 · 5 US

Verified signals

Jurisdiction
  • EU / adequacy hosting: Yes
  • EU / adequacy operator: Yes
  • No US CLOUD Act exposure: No
Transparency
  • Public DPA: Yes
  • Sub-processors disclosed: Yes
  • Open-source clients: Yes
  • Third-party certification: No
CLOUD Act by deployment

Exposure depends on how you run this product.

Hosted SaaS (default)

Vendor-operated: the sub-processors below apply.

Self-hosted (open-source)

Deploy on your own EU infrastructure and you control hosting and every sub-processor.

Jump to

About PostHog

PostHog is the open-source product-analytics platform founded in 2020 by James Hawkins and Tim Glaser in London, a Y Combinator Winter 2020 batch alumnus that built one of the most successful B2B-software launches on Hacker News since 2012. The product combines product analytics, session replay, feature flags, A/B testing, surveys, heatmaps, data warehouse, and customer data infrastructure into a single integrated platform; PostHog reports that 98% of customers use the free tier and operates entirely on usage-based pricing ($0.00005 per event for analytics, $0.005 per session-replay recording).

For an EU-sovereignty audit PostHog falls into the eu_hq_us_funded ownership tier. The HQ is London (UK post-Brexit jurisdiction with EU adequacy decision), but the cap table is heavily US-VC: Y Combinator (the canonical Silicon Valley accelerator) led the initial investment and GV (Google Ventures) led the $12M Series A; notable angels include Jason Warner (former GitHub CTO), Solomon Hykes (Docker founder), and David Cramer (Sentry founder). For the managed cloud, customers pick between US (Virginia) and EU (Frankfurt) hosting regions at signup; EU-region customers get GDPR-aligned residency, but the vendor's UK jurisdiction + US-VC ownership + AWS Frankfurt hosting (under PostHog's parent entity) keep the CLOUD Act flag at material under the strict-ownership stance.

The self-host edition is the procurement-grade path for EU buyers. PostHog publishes the full server-side stack as open source on GitHub under a source-available licence; running it on Hetzner / OVHcloud / Scaleway / STACKIT / private DC delivers full sovereignty by construction. Pricing: free tier (extremely generous, most customers stay on free); usage-based above for both cloud and self-host commercial deployments. Best fit: product teams that want an Amplitude / Mixpanel / Heap replacement with permissive self-host option and don't require an EU-incorporated vendor entity.

Sub-processor map · 5

Source
  • Amazon Web Services, Inc. US
    Germany

    Cloud storage of PostHog Cloud data

  • Cloudflare, Inc. US
    United States

    Reverse proxy, CDN, security and traffic routing at global edge locations (added to the vendor list by the 2026-06-12 update; not region-pinned)

  • Modal Labs, Inc. US
    Germany

    Serverless compute infrastructure for isolated code execution

  • PlanetScale, Inc. US
    Germany

    Operations and performance monitoring of databases

  • Wiz, Inc. US
    Germany

    Security vulnerability management and detection (listed as Germany, France)

Source: the vendor’s published sub-processor list, read 26 Aug 2026.

5 of 5 sub-processors are US-owned or US-based. CLOUD Act exposure applies.

Frameworks & certifications · none listed

We checked the vendor's website and standard certification body registries. No active certifications found at the time of last audit (2026-08-26).

Capability matrix

Table 2Capabilities of PostHog

Cookieless No
Self-hostable Yes
Custom events Yes
Funnels Yes
Session replay Yes
GA import Yes
Stats API Yes

Integration & access

REST API Yes
SSO (SAML / OIDC) Yes

Compliance & governance

Audit log Yes
Self-host / on-prem option Yes

Pricing & tiers

from €0/mo
Freemium
View pricing page

Public documents

  • Data Processing Addendum (DPA)
    posthog.com/dpa…
    Open
  • Sub-processors list
    posthog.com/subprocessors…
    Open
  • Terms of Service
    posthog.com/terms…
    Open

Alternatives in this category

  • Ireland
    EU-Sovereign
    Public DPA: Not assessed Sub-processors: Yes Open source: Yes
  • New Zealand · €29/mo
    EU-Hosted
    Public DPA: Yes Sub-processors: Yes Open source: Yes
  • Germany · $6/mo
    EU-Sovereign
    Public DPA: Yes Sub-processors: Yes Open source: No