Companies using AgentMail and PostHog

6 companies in our data have public evidence for both AgentMail and PostHog, and 4 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

75%of AgentMail users

under 1%of PostHog users

4name both as subprocessors

Companies using one are 10 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	AgentMail	PostHog
Foundablefoundable.comFoundable provides an AI employee called Ted that builds a website, logo and email from an idea and then helps run the business, including outreach, posts and payments.AI and machine learning
Luaheylua.aiLua provides a workspace where people and AI agent teams work together, with agents doing tasks in connected tools and asking for human approval before important actions.AI and machine learning Productivity and collaboration
itemitem.appItem provides an AI-native CRM that unifies company context from over 100 tools and lets teams and AI agents work side by side.AI and machine learning Productivity and collaboration
Holmesuseholmes.comHolmes is an AI QA platform that tests web apps, mobile apps, and APIs using autonomous agents.AI and machine learning Developer tools
Appy.AIAppy.AI provides AI coworkers that handle business tasks for marketing, sales, finance, and operations teams.AI and machine learning Productivity and collaboration
Pay With Locuspaywithlocus.comLocus provides paid API access to a catalog of agent tools, with billing and credit balances managed per customer.AI and machine learning Developer tools

The two technologies

AgentMail

Email and communications

AgentMail is an email service that gives AI agents their own inboxes, which can be provisioned through an API call. It is used so that agents can send, receive, and reply to email, with threads and attachments kept under one conversation.

Summarized from agentmail.to on 8 Nov 2026.

75% of the 8 companies we see using AgentMail also show the other.

All 8 companies using AgentMail 6 name it as a subprocessor More in Email and communications

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 1,780 companies we see using PostHog also show the other.

All 1,780 companies using PostHog 1,126 name it as a subprocessor More in Analytics

Industries

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

AI and machine learning6 Productivity and collaboration3 Developer tools2

Other pairs

Companies with their own evidence for both.

More with AgentMail

Cloudflare8companies

Google8companies

Anthropic7companies

Google Workspace7companies

OpenAI7companies

Stripe7companies

Questions

How many companies use both AgentMail and PostHog?

6 companies in StrataDB's data have public evidence for both, and 4 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 AgentMail and PostHog?

Foundable, Lua, item, Holmes and Appy.AI, and 1 more company. Each one links to the evidence behind it.

How does StrataDB know a company uses AgentMail 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 AgentMail and PostHog

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.

Every company and vendor, with its public source
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