Does Ossus use Twilio?
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 Ossus
Ossus builds software for running a modern library, including cataloguing, circulation, and discovery. It serves public libraries and schools.
Summarized from its homepage on 4 Nov 2026.
What else Ossus uses
Ossus has evidence for 11 vendors. The strongest:
Cloudflare
Anthropic
Firecrawl
OpenAI
Resend
SendSafely
Google Workspace
Next.js
Other companies using Twilio
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- 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