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Technologies / Anthropic / Microsoft Azure AI Foundry

Companies using Anthropic and Microsoft Azure AI Foundry

5 companies in our data have public evidence for both Anthropic and Microsoft Azure AI Foundry, 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.

5companies use both
under 1%of Anthropic users
45%of Microsoft Azure AI Foundry users
3name both as subprocessors

Companies using one are 3.7 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

CompanyAnthropicMicrosoft Azure AI Foundry
Arc53arc53.comArc53 builds AI infrastructure and provides AI/ML engineering services, including its DocsGPT platform for private AI search over an organization's own documents.AI and machine learningConsulting and services
ClickUpclickup.comClickUp provides a workspace that connects work, knowledge, and conversations to AI.AI and machine learningProductivity and collaboration
CoGradercograder.comCoGrader provides AI tools that grade essays and open-ended work with rubric-based feedback, check originality, and generate rubrics.AI and machine learningEducation
Big Sister AIbig-sister.aiBig Sister scores customer conversations against a company's sales method and links each score to the moment that earned it.Sales
DocsGPTdocsgpt.cloudDocsGPT is an open-source platform for private AI agents, assistants and enterprise search over an organisation's own documents.AI and machine learning

The two technologies

Anthropic

AI and LLM providers

Anthropic 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 2,928 companies we see using Anthropic also show the other.

All 2,928 companies using Anthropic2,247 name it as a subprocessorMore in AI and LLM providers

Microsoft Azure AI Foundry

AI and LLM providers

45% of the 11 companies we see using Microsoft Azure AI Foundry also show the other.

All 11 companies using Microsoft Azure AI Foundry8 name it as a subprocessorMore in AI and LLM providers

Other pairs

Companies with their own evidence for both.

More with Anthropic

Cloudflare2,907companiesGoogle Workspace2,134companiesOpenAI1,998companiesAmazon Web Services1,554companiesStripe1,535companiesGoogle1,415companies

More with Microsoft Azure AI Foundry

Cloudflare11companiesOpenAI7companiesStripe6companiesAmazon Web Services5companiesGoogle Workspace5companiesMicrosoft Azure5companies

Questions

How many companies use both Anthropic and Microsoft Azure AI Foundry?

5 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 Anthropic and Microsoft Azure AI Foundry?

Arc53, ClickUp, CoGrader, Big Sister AI and DocsGPT. Each one links to the evidence behind it.

How does StrataDB know a company uses Anthropic and Microsoft Azure AI Foundry?

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 Microsoft Azure AI Foundry

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
  • 100 API calls a month, plus MCP and the Chrome extension
  • Work email only. No card, no sales call