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Technologies / PostHog / The Constant Company

Companies using PostHog and The Constant Company

3 companies in our data have public evidence for both PostHog and The Constant Company, and 2 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.

3companies use both
under 1%of PostHog users
38%of The Constant Company users
2name both as subprocessors

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

CompanyPostHogThe Constant Company
Cycle.ioCycle provides a platform for provisioning and managing cloud and on-prem infrastructure, running containers, VMs, and functions from a single control plane.Cloud and infrastructureDeveloper tools
Prismaprisma.ioPrisma provides a type-safe ORM, managed Postgres, and app hosting for TypeScript applications.Developer tools
Modalmodal.comModal provides cloud infrastructure for teams to develop, train, and serve AI applications.AI and machine learningCloud and infrastructure

The two technologies

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 1,763 companies we see using PostHog also show the other.

All 1,763 companies using PostHog1,118 name it as a subprocessorMore in Analytics

The Constant Company

Cloud and infrastructure

38% of the 8 companies we see using The Constant Company also show the other.

All 8 companies using The Constant Company7 name it as a subprocessorMore in Cloud and infrastructure

Industries

Among the companies above, by our own classification of their homepage.

Cloud and infrastructure2Developer tools2

Other pairs

Companies with their own evidence for both.

More with PostHog

Cloudflare1,761companiesGoogle Workspace1,389companiesStripe985companiesNext.js844companiesAmazon Web Services827companiesVercel816companies

More with The Constant Company

Cloudflare8companiesGoogle Workspace8companiesGoogle6companiesAmazon Web Services5companies

Questions

How many companies use both PostHog and The Constant Company?

3 companies in StrataDB's data have public evidence for both, and 2 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 PostHog and The Constant Company?

Cycle.io, Prisma and Modal. Each one links to the evidence behind it.

How does StrataDB know a company uses PostHog and The Constant Company?

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 PostHog and The Constant Company

See the full list with the source for each company, and run the same lookup for any technology from the API, Claude or your browser.

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