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Technologies / SmartLead / Vercel

Companies using SmartLead and Vercel

6 companies in our data have public evidence for both SmartLead and Vercel, 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.

6companies use both
60%of SmartLead users
under 1%of Vercel users
2name both as subprocessors

Companies using one are 3.0 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

CompanySmartLeadVercel
agpt.coThis company provides a team of AI experts that handle content, sales, research, and recurring work.AI and machine learningProductivity and collaboration
Lead Megaphoneleadmegaphone.comLead Megaphone provides buyer intelligence, business contacts, and outreach services for B2B teams.Consulting and services
Relevance AIrelevanceai.comRelevance AI provides a platform for building and deploying AI agents that automate business tasks.AI and machine learning
Fireboltfirebolt.ioFirebolt is an analytical database that runs as a single binary on a laptop or scales to a cluster in the cloud.Data and analytics
ListPluslistplus.aiListPlus helps CRM teams, RevOps and GTM engineers find B2B leads and check and enrich contact data.Sales
unifyunify.aiUnify provides continual learning for AI teams, with models that keep learning from every user interaction.AI and machine learning

The two technologies

SmartLead is an AI-powered cold email and outbound sales platform that helps teams set up, run, and manage email outreach. It is used to send cold email campaigns, improve email deliverability, find verified leads, and manage replies in a shared inbox.

Summarized from smartlead.ai on 9 Nov 2026.

60% of the 10 companies we see using SmartLead also show the other.

All 10 companies using SmartLead6 name it as a subprocessor

Vercel

Cloud and infrastructure

Vercel is a platform for deploying and running web apps and AI agents, with services such as Fluid Compute, Sandbox, and an AI Gateway for accessing over 400 models. It is used by developers and coding agents to ship frontend and backend applications, durable workflows, and sandboxed code execution.

Summarized from vercel.com on 8 Nov 2026.

under 1% of the 4,858 companies we see using Vercel also show the other.

All 4,858 companies using Vercel1,277 name it as a subprocessorMore in Cloud and infrastructure

Other pairs

Companies with their own evidence for both.

More with SmartLead

Cloudflare10companiesGoogle Workspace9companiesAnthropic7companiesAmazon Web Services6companiesGoogle Tag Manager6companiesSentry6companies

More with Vercel

Cloudflare4,845companiesNext.js3,626companiesGoogle Workspace3,457companiesGoogle Analytics1,470companiesStripe1,442companiesAmazon Web Services1,282companies

Questions

How many companies use both SmartLead and Vercel?

6 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 SmartLead and Vercel?

agpt.co, Lead Megaphone, Relevance AI, Firebolt and ListPlus, and 1 more company. Each one links to the evidence behind it.

How does StrataDB know a company uses SmartLead and Vercel?

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 SmartLead and Vercel

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