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Technologies / Anthropic / ConvertAPI

Companies using Anthropic and ConvertAPI

6 companies in our data have public evidence for both Anthropic and ConvertAPI, and 5 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.

6companies use both
under 1%of Anthropic users
46%of ConvertAPI users
5name both as subprocessors

Companies using one are 3.7 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

CompanyAnthropicConvertAPI
Abundly AIabundly.aiAbundly provides an AI agent platform where business teams build and run AI agents that work across systems and communicate via email, Slack, and SMS.AI and machine learning
CogniSynccogni-sync.comCogniSync provides a legal workflow platform for researching legal questions, drafting and reviewing documents, and searching documents.AI and machine learningLegal
Miligetmili.aiMili provides AI agents for wealth management firms that automate tasks such as meeting notes, CRM updates, scheduling, and client onboarding.AI and machine learningFintech
Letter AIletter.aiLetter AI provides an AI-native platform for sales training, coaching, content creation, conversational intelligence, and deal pursuit.AI and machine learningSales
SpotDraftspotdraft.comSpotDraft provides a contract management platform that drafts, reviews, and tracks contracts.Legal
ISMS Copilotismscopilot.comISMS Copilot provides an AI assistant that answers questions about compliance frameworks such as ISO 27001, SOC 2 and NIS 2, and checks compliance work against official sources.Compliance and risk

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

ConvertAPI is a cloud-based file conversion service that supports over 500 file formats through a single REST API. It is used to convert files between formats, such as converting a DOCX file to PDF with a single request.

Summarized from convertapi.com on 8 Nov 2026.

46% of the 13 companies we see using ConvertAPI also show the other.

All 13 companies using ConvertAPI12 name it as a subprocessor

Industries

Among the companies above, by our own classification of their homepage.

AI and machine learning4Legal2

Other pairs

Companies with their own evidence for both.

More with Anthropic

Cloudflare2,882companiesGoogle Workspace2,113companiesOpenAI1,980companiesAmazon Web Services1,549companiesStripe1,517companiesGoogle1,401companies

More with ConvertAPI

Amazon Web Services13companiesCloudflare13companiesGoogle Workspace10companiesGoogle Tag Manager8companiesGoogle7companiesGoogle Analytics7companies

Questions

How many companies use both Anthropic and ConvertAPI?

6 companies in StrataDB's data have public evidence for both, and 5 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 ConvertAPI?

Abundly AI, CogniSync, Mili, Letter AI and SpotDraft, and 1 more company. Each one links to the evidence behind it.

How does StrataDB know a company uses Anthropic and ConvertAPI?

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 ConvertAPI

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