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Technologies / Anthropic / ContactOut

Companies using Anthropic and ContactOut

3 companies in our data have public evidence for both Anthropic and ContactOut, and 2 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
50%of ContactOut users
2name 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

CompanyAnthropicContactOut
Frecklefreckle.ioFreckle provides a CLI for running GTM workflows and enrichments from the terminal.Sales
Loopsterloopster.aiLoopster provides a GTM orchestration platform with unlimited contact data enrichment, including work and personal emails and phones.Sales
Add to CRMaddtocrm.comAdd to CRM is a Chrome extension that finds verified email addresses and phone numbers from LinkedIn, Gmail, and Outlook profiles and adds them to a connected CRM.Sales

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 2,910 companies we see using Anthropic also show the other.

All 2,910 companies using Anthropic2,239 name it as a subprocessorMore in AI and LLM providers

ContactOut

CRM and sales

ContactOut is an email finder that locates a person's verified email from limited information, like their name and company or their profile. It is used to return verified work and personal emails, direct-dial phone numbers, and enriched people and company data for professionals and companies.

Summarized from contactout.com on 9 Nov 2026.

50% of the 6 companies we see using ContactOut also show the other.

All 6 companies using ContactOut5 name it as a subprocessorMore in CRM and sales

Other pairs

Companies with their own evidence for both.

More with Anthropic

Cloudflare2,891companiesGoogle Workspace2,121companiesOpenAI1,987companiesAmazon Web Services1,553companiesStripe1,522companiesGoogle1,407companies

More with ContactOut

Amazon Web Services6companiesCloudflare5companiesGoogle Workspace5companiesOpenAI5companies

Questions

How many companies use both Anthropic and ContactOut?

3 companies in StrataDB's data have public evidence for both, and 2 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 ContactOut?

Freckle, Loopster and Add to CRM. Each one links to the evidence behind it.

How does StrataDB know a company uses Anthropic and ContactOut?

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 ContactOut

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