Companies using PostHog and Webshare

4 companies in our data have public evidence for both PostHog and Webshare, and 3 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.

4companies use both

under 1%of PostHog users

50%of Webshare users

3name 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

Company	PostHog	Webshare
agpt.coThis company provides a team of AI experts that handle content, sales, research, and recurring work.AI and machine learning Productivity and collaboration
Athena Indexathenaindex.comAthena Index documents public claims made by financial commentators and verifies whether those claims hit, missed, or remain open.Compliance and risk Data and analytics
Leadistryleadistry.co.ukLeadistry finds UK companies that match who you sell to and provides their checked website and email with a dated reason to get in touch.Sales
CampaignStackcampaignstack.ioCampaignStack finds leads, writes to them in your voice, books meetings and provides a brief before the call.Sales

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 1,770 companies we see using PostHog also show the other.

All 1,770 companies using PostHog 1,123 name it as a subprocessor More in Analytics

Webshare

Cloud and infrastructure

Webshare is a proxy service offering datacenter, static residential, and rotating residential proxy products. It is used to route web traffic through proxy IP addresses for tasks such as web scraping, price monitoring, ad verification, and social media account management.

Summarized from webshare.io on 9 Nov 2026.

50% of the 8 companies we see using Webshare also show the other.

All 8 companies using Webshare 7 name it as a subprocessor More in Cloud and infrastructure

Other pairs

Companies with their own evidence for both.

More with Webshare

Cloudflare8companies

OpenAI6companies

Anthropic5companies

Sentry5companies

Vercel5companies

Questions

How many companies use both PostHog and Webshare?

4 companies in StrataDB's data have public evidence for both, and 3 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 Webshare?

agpt.co, Athena Index, Leadistry and CampaignStack. Each one links to the evidence behind it.

How does StrataDB know a company uses PostHog and Webshare?

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 Webshare

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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