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Technologies / Anthropic / Pydantic Logfire

Companies using Anthropic and Pydantic Logfire

5 companies in our data have public evidence for both Anthropic and Pydantic Logfire, and 4 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
50%of Pydantic Logfire users
4name both as subprocessors

Companies using one are 4.0 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

CompanyAnthropicPydantic Logfire
dojodojoai.comDojo provides a workspace where marketing teams run brand, performance, and creative work together.AI and machine learningMarketing
Paretapareta.aiPareta is a verified-inference provider that routes API requests to Pareta-hosted specialist models, verifies the results, and escalates to a frontier model when needed.AI and machine learning
Semaloopsemaloop.comSemaloop provides agents that test mobile apps like real users across app flows.Developer tools
Squintsquint.aiSquint provides industrial AI software that captures operational knowledge and generates procedures, work instructions, and troubleshooting guidance for frontline workers.AI and machine learningManufacturing
GuruSupgurusup.comGurusup builds a Company Brain from a company's knowledge and deploys AI agents that execute tasks across its tools, teams, and channels.AI and machine learningProductivity and collaboration

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 2,979 companies we see using Anthropic also show the other.

All 2,979 companies using Anthropic2,282 name it as a subprocessorMore in AI and LLM providers

Pydantic Logfire

Observability

Pydantic Logfire is a full-stack observability and evaluation platform for AI agents, built on OpenTelemetry and framework-agnostic. It traces LLM calls, tool calls, database queries, APIs and custom code in one view so teams can debug, evaluate and improve AI applications in production.

Summarized from pydantic.dev on 8 Nov 2026.

50% of the 10 companies we see using Pydantic Logfire also show the other.

All 10 companies using Pydantic Logfire6 name it as a subprocessorMore in Observability

Other pairs

Companies with their own evidence for both.

More with Anthropic

Cloudflare2,965companiesGoogle Workspace2,169companiesOpenAI2,032companiesAmazon Web Services1,577companiesStripe1,575companiesGoogle1,451companies

More with Pydantic Logfire

Cloudflare10companiesGoogle Workspace10companiesOpenAI7companiesGoogle Cloud6companiesPostHog6companiesWorkOS6companies

Questions

How many companies use both Anthropic and Pydantic Logfire?

5 companies in StrataDB's data have public evidence for both, and 4 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 Pydantic Logfire?

dojo, Pareta, Semaloop, Squint and GuruSup. Each one links to the evidence behind it.

How does StrataDB know a company uses Anthropic and Pydantic Logfire?

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 Pydantic Logfire

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