/
Log inGet free API keyAccount
Menu
CompaniesTechnologiesAI indexDocsPricingChrome extensionLog inAccount

Technologies / Anthropic / Flagsmith

Companies using Anthropic and Flagsmith

2 companies in our data have public evidence for both Anthropic and Flagsmith, 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.

2companies use both
under 1%of Anthropic users
40%of Flagsmith 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

CompanyAnthropicFlagsmith
ChatSEOchatseo.appChatSEO is an SEO tool that analyzes a website and provides prioritized actions to improve search visibility.Marketing
Persefoni AIpersefoni.comPersefoni provides carbon footprint measurement, emissions reporting, and decarbonization management software.Energy and climate

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

Flagsmith

Developer tools

Flagsmith is an all-in-one feature flag tool for developing, implementing, and managing feature flags. It is used to create and manage feature toggles across web, mobile, and server-side applications, and to configure remote config values for features.

Summarized from flagsmith.com on 9 Nov 2026.

40% of the 5 companies we see using Flagsmith also show the other.

All 5 companies using Flagsmith5 name it as a subprocessorMore in Developer tools

Other pairs

Companies with their own evidence for both.

More with Anthropic

Cloudflare2,905companiesGoogle Workspace2,134companiesOpenAI1,997companiesAmazon Web Services1,556companiesStripe1,532companiesGoogle1,415companies

More with Flagsmith

Cloudflare5companies

Questions

How many companies use both Anthropic and Flagsmith?

2 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 Flagsmith?

ChatSEO and Persefoni AI. Each one links to the evidence behind it.

How does StrataDB know a company uses Anthropic and Flagsmith?

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 Flagsmith

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