Does Arc53 use Anthropic?
Yes
We hold strong evidence for this.
- The company names it in its own subprocessor list, a statement that this vendor handles its customers' data.
How we know
About Arc53
Arc53 builds AI infrastructure and provides AI/ML engineering services, including its DocsGPT platform for private AI search over an organization's own documents. It serves teams and enterprises that want AI systems deployed on their own cloud, servers, or air-gapped environments.
Summarized from its homepage on 7 Nov 2026.
What else Arc53 uses
Arc53 has evidence for 25 vendors. The strongest:
Cloudflare
Amazon Web Services
Axiom
Better Stack
Clerk
Daytona Platforms
DigitalOcean
Fireworks AI
Other companies using Anthropic
Check any company's vendors in seconds
See Arc53's full stack with a source for every vendor, and ask the same question about any company 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