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Technologies / Astronomer / Slack

Companies using Astronomer and Slack

4 companies in our data have public evidence for both Astronomer and Slack, 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
44%of Astronomer users
under 1%of Slack 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

CompanyAstronomerSlack
Empiric Earthempiricearth.comEmpiric Earth turns real-world driving data from Nexar and Nauto into intelligence for measuring, predicting and preventing risk.Automotive and mobility
Mattermoremattermore.aiMattermore provides a real-time workforce intelligence layer built on existing behavioral data that shows how an organization runs and where AI can be applied.AI and machine learningHR and recruiting
Pantherpanther.comPanther provides a security platform that investigates alerts, stores outcomes, and supports detection engineering.Cybersecurity
Magic Schoolmagicschool.aiMagicSchool provides an AI platform with tools for teachers, students, and school administrators.AI and machine learningEducation

The two technologies

Astronomer is a fully-managed orchestration platform powered by Apache Airflow, offered as Astro and Astro Private Cloud. It is used to run and orchestrate data and AI workflows, from prototype to production.

Summarized from astronomer.io on 8 Nov 2026.

44% of the 9 companies we see using Astronomer also show the other.

All 9 companies using Astronomer9 name it as a subprocessorMore in Data

Slack

by Salesforce · Productivity

Slack is a collaboration platform where teams chat, share files, and work together in channels. It is used for team communication, connecting apps and agents, and automating everyday work.

Summarized from slack.com on 8 Nov 2026.

under 1% of the 1,934 companies we see using Slack also show the other.

All 1,934 companies using Slack1,341 name it as a subprocessorMore in Productivity

Other pairs

Companies with their own evidence for both.

More with Astronomer

Cloudflare9companiesGoogle Workspace8companiesGoogle Tag Manager7companiesGoogle Analytics5companies

More with Slack

Cloudflare1,812companiesGoogle Workspace1,579companiesAmazon Web Services1,298companiesStripe895companiesGoogle Tag Manager880companiesGoogle811companies

Questions

How many companies use both Astronomer and Slack?

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 Astronomer and Slack?

Empiric Earth, Mattermore, Panther and Magic School. Each one links to the evidence behind it.

How does StrataDB know a company uses Astronomer and Slack?

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 Astronomer and Slack

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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