Companies using Discourse and PostHog

6 companies in our data have public evidence for both Discourse and PostHog, and 5 name both in their own subprocessor list. Each company below links to the source for every claim. Our coverage is partial, so this is not everyone.

6companies use both

40%of Discourse users

under 1%of PostHog users

5name both as subprocessors

Companies using one are 5.3 times as likely as the average company in our data to show evidence of the other.

The companies

Strongest evidence first: a company naming both in its own subprocessor list comes before one seen on its website or in job postings.

Subprocessor listPrivacy policyWebsiteJob postings

Company	Discourse	PostHog
AWeberaweber.comAWeber provides email marketing, automation, landing pages, and ecommerce tools.Marketing
Finsweetfinsweet.comFinsweet designs and builds websites and web apps for B2B and enterprise companies, including rebrands, migrations, and custom applications.
Fly.ioFly.io provides hardware-virtualized containers called Machines that launch instantly, along with isolated sandboxes for running untrusted or AI-generated code.Cloud and infrastructure Developer tools
Nylasnylas.comNylas provides APIs for email, calendar, contacts, and meeting data that sync across providers like Gmail, Microsoft Graph, Exchange, and IMAP.Communications Developer tools
Preziprezi.comPrezi is an interactive presentation platform for building and presenting slides with live polls, quizzes, and Q&A.Education Productivity and collaboration
Fireboltfirebolt.ioFirebolt is an analytical database that runs as a single binary on a laptop or scales to a cluster in the cloud.Data and analytics

The two technologies

Discourse

Discourse is an open source, customizable community platform that lets people create knowledge through conversation. It is used to build and run online communities, support hubs, team workspaces, product feedback forums, and developer communities.

Summarized from discourse.com on 8 Nov 2026.

40% of the 15 companies we see using Discourse also show the other.

All 15 companies using Discourse 11 name it as a subprocessor

PostHog

Analytics

PostHog is a platform that ingests and stores product analytics, errors, session replays, and business data so teams and their AI agents can query and act on it. It is used to answer product questions, investigate issues across tools, and give agents product context.

Summarized from posthog.com on 8 Nov 2026.

under 1% of the 1,752 companies we see using PostHog also show the other.

All 1,752 companies using PostHog 1,109 name it as a subprocessor More in Analytics

Other pairs

Companies with their own evidence for both.

More with Discourse

Cloudflare15companies

Amazon Web Services12companies

Google Tag Manager11companies

Google Workspace11companies

Slack9companies

Stripe9companies

Questions

How many companies use both Discourse and PostHog?

6 companies in StrataDB's data have public evidence for both, and 5 of them name both in their own subprocessor list, the strongest evidence we hold. Our coverage is partial, so the real number is higher.

Which companies use Discourse and PostHog?

AWeber, Finsweet, Fly.io, Nylas and Prezi, and 1 more company. Each one links to the evidence behind it.

How does StrataDB know a company uses Discourse and PostHog?

From four kinds of public evidence: subprocessor lists, privacy policies, website code and job postings. Each is kept apart with its source and the date we saw it. A company missing here means we found no evidence, not that it does not use them.

Find every company using Discourse and PostHog

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