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Technologies / Anthropic / Porter Technologies

Companies using Anthropic and Porter Technologies

5 companies in our data have public evidence for both Anthropic and Porter Technologies, 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
56%of Porter Technologies users
3name both as subprocessors

Companies using one are 4.5 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

CompanyAnthropicPorter Technologies
End Closeendclose.comEnd Close provides automated payment reconciliation software that matches transactions and resolves exceptions.Finance and accounting softwareFintech
Ionworksionworks.comIonworks provides a battery data and simulation platform that turns test data into validated physics-based models.Energy and climate
Ontoraontora.comOntora provides AI transformation services that include process discovery, prioritised roadmaps, and targeted AI implementation with measurement of return.AI and machine learningConsulting and services
Writesonicwritesonic.comWritesonic tracks where brands appear in AI search answers and fixes content, citations, and technical issues to improve that visibility.AI and machine learningMarketing
Arcadearcade.devArcade provides an actions runtime that enforces, executes, and governs every action between AI agents and the systems they reach.AI and machine learningDeveloper tools

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 2,890 companies we see using Anthropic also show the other.

All 2,890 companies using Anthropic2,221 name it as a subprocessorMore in AI and LLM providers

Porter Technologies

Cloud and infrastructure

56% of the 9 companies we see using Porter Technologies also show the other.

All 9 companies using Porter Technologies8 name it as a subprocessorMore in Cloud and infrastructure

Other pairs

Companies with their own evidence for both.

More with Anthropic

Cloudflare2,873companiesGoogle Workspace2,106companiesOpenAI1,973companiesAmazon Web Services1,544companiesStripe1,514companiesGoogle1,398companies

More with Porter Technologies

Cloudflare9companiesGoogle Workspace9companiesOpenAI8companiesAmazon Web Services7companiesPostHog6companiesStripe6companies

Questions

How many companies use both Anthropic and Porter Technologies?

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 Porter Technologies?

End Close, Ionworks, Ontora, Writesonic and Arcade. Each one links to the evidence behind it.

How does StrataDB know a company uses Anthropic and Porter Technologies?

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 Porter Technologies

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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