Technologies / Anthropic / Proton AG
Companies using Anthropic and Proton AG
2 companies in our data have public evidence for both Anthropic and Proton AG, and 1 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.
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 | Anthropic | Proton AG |
|---|---|---|
The two technologies
Anthropic
AI and LLM providersAnthropic is a public benefit corporation dedicated to securing the benefits of AI and mitigating its risks. It is used for the responsible development and maintenance of advanced AI for the long-term benefit of humanity.
Summarized from anthropic.com on 8 Nov 2026.
under 1% of the 2,935 companies we see using Anthropic also show the other.
All 2,935 companies using Anthropic2,253 name it as a subprocessorMore in AI and LLM providers
Proton AG
Security and identityProton is a privacy-focused technology company founded in Switzerland in 2014. It is used to provide an alternative internet where privacy is the default and people control their digital lives.
Summarized from proton.me on 9 Nov 2026.
25% of the 8 companies we see using Proton AG also show the other.
All 8 companies using Proton AG5 name it as a subprocessorMore in Security and identity
Other pairs
Companies with their own evidence for both.
Questions
How many companies use both Anthropic and Proton AG?
2 companies in StrataDB's data have public evidence for both, and 1 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 Anthropic and Proton AG?
Odigos and Proofbacked. Each one links to the evidence behind it.
How does StrataDB know a company uses Anthropic and Proton AG?
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 Anthropic and Proton AG
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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