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Technologies / Anthropic / Paubox

Companies using Anthropic and Paubox

3 companies in our data have public evidence for both Anthropic and Paubox, 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.

3companies use both
under 1%of Anthropic users
43%of Paubox 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

CompanyAnthropicPaubox
Blocksblocks.diyBlocks is a platform that deploys AI agents to execute daily operations on top of a company's ERP.AI and machine learningLogistics and supply chain
Rev AIrev.aiRev AI provides speech-to-text APIs that generate transcripts from pre-recorded files or real-time audio streams.AI and machine learningDeveloper tools
Revrev.comRev provides transcription, captioning, and an investigative intelligence platform for analyzing case files.AI and machine learningLegal

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 2,926 companies we see using Anthropic also show the other.

All 2,926 companies using Anthropic2,246 name it as a subprocessorMore in AI and LLM providers

Paubox

Email and communications

Paubox is a HIPAA compliant email and forms solution. It is used to send compliant, encrypted email and securely collect patient data.

Summarized from paubox.com on 8 Nov 2026.

43% of the 7 companies we see using Paubox also show the other.

All 7 companies using Paubox7 name it as a subprocessorMore in Email and communications

Other pairs

Companies with their own evidence for both.

More with Anthropic

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

More with Paubox

Amazon Web Services7companiesCloudflare7companies

Questions

How many companies use both Anthropic and Paubox?

3 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 Paubox?

Blocks, Rev AI and Rev. Each one links to the evidence behind it.

How does StrataDB know a company uses Anthropic and Paubox?

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 Paubox

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