Does support use Vercel?
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.
- Its script, DNS record or job board was loaded on the company's live website.
How we know
About support
Plain provides a help center, customer inbox, and AI assistant for customer support. It serves B2B SaaS companies and startups.
Summarized from its homepage on 11 Nov 2026.
What else support uses
support has evidence for 33 vendors. The strongest:
Cloudflare
Amazon Web Services
Anthropic
Baseten
Customer.io
Datadog
Google
HubSpot
Other companies using Vercel
Check any company's vendors in seconds
See support'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