Technologies / Anthropic / Extend
Companies using Anthropic and Extend
9 companies in our data have public evidence for both Anthropic and Extend, and 8 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.
Companies using one are 8.1 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
| Company | Anthropic | Extend |
|---|---|---|
The two technologies
Anthropic
AI and LLM providersAnthropic 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 2,965 companies we see using Anthropic also show the other.
All 2,965 companies using Anthropic2,275 name it as a subprocessorMore in AI and LLM providers
Extend is a set of document processing APIs. It is used to parse, extract, split, and verify documents.
Summarized from extend.ai on 8 Nov 2026.
100% of the 9 companies we see using Extend also show the other.
Industries
Among the companies above, by our own classification of their homepage.
Other pairs
Companies with their own evidence for both.
Questions
How many companies use both Anthropic and Extend?
9 companies in StrataDB's data have public evidence for both, and 8 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 Extend?
Holly, Ironclad, Moda, Ocrolus and Parabola, and 4 more companies. Each one links to the evidence behind it.
How does StrataDB know a company uses Anthropic and Extend?
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 Extend
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