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Technologies / AgentPhone / Resend

Companies using AgentPhone and Resend

2 companies in our data have public evidence for both AgentPhone and Resend, and 2 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.

2companies use both
67%of AgentPhone users
under 1%of Resend users
2name both as subprocessors

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

CompanyAgentPhoneResend
Denchdench.comDench provides AI agents that find, reach, and close customers, and it replaces legacy CRM systems and GTM tools.AI and machine learningSales
returnsignals.comSignals provides an AI store associate that communicates with shoppers over iMessage to answer product questions, support orders, and encourage repeat purchases.AI and machine learningCustomer support

The two technologies

AgentPhone

Email and communications

AgentPhone gives an AI agent its own phone number so it can handle voice calls and messages through one unified webhook. It is used to let autonomous agents call, text, and act without a human in the loop.

Summarized from agentphone.ai on 9 Nov 2026.

67% of the 3 companies we see using AgentPhone also show the other.

All 3 companies using AgentPhoneMore in Email and communications

Resend

Email and communications

Resend is an email platform for developers that delivers transactional and marketing emails. It is used to send emails through an API, SDKs, or SMTP, along with webhooks, contact management, and analytics.

Summarized from resend.com on 8 Nov 2026.

under 1% of the 1,413 companies we see using Resend also show the other.

All 1,413 companies using Resend1,048 name it as a subprocessorMore in Email and communications

Other pairs

Companies with their own evidence for both.

More with Resend

Cloudflare1,416companiesStripe945companiesGoogle Workspace848companiesNext.js812companiesVercel763companiesGoogle683companies

Questions

How many companies use both AgentPhone and Resend?

2 companies in StrataDB's data have public evidence for both, and 2 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 AgentPhone and Resend?

Dench and returnsignals.com. Each one links to the evidence behind it.

How does StrataDB know a company uses AgentPhone and Resend?

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 AgentPhone and Resend

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