/
Log inGet free API keyAccount
Menu
CompaniesTechnologiesAI indexDocsPricingChrome extensionLog inAccount

Technologies / Mailgun / Zenlayer

Companies using Mailgun and Zenlayer

3 companies in our data have public evidence for both Mailgun and Zenlayer, and 3 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.

3companies use both
1%of Mailgun users
60%of Zenlayer users
3name 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

CompanyMailgunZenlayer
Fly.ioFly.io provides hardware-virtualized containers called Machines that launch instantly, along with isolated sandboxes for running untrusted or AI-generated code.Cloud and infrastructureDeveloper tools
Rackspacerackspace.comRackspace operates enterprise AI infrastructure, including governed private cloud and AI workloads in production, along with cloud consulting, migration, and managed operations services.AI and machine learningCloud and infrastructure
Telnyxtelnyx.comTelnyx provides a cloud platform combining its own licensed carrier network with edge compute and GPU infrastructure, offering inference, voice, messaging, storage and wireless connectivity on one bill.AI and machine learningCloud and infrastructure

The two technologies

Mailgun

by Sinch · Email and communications

Mailgun is a transactional email delivery service and API that developers use to send, receive, track, and validate emails. It also offers tools for optimizing email deliverability and previewing emails before they are sent.

Summarized from mailgun.com on 8 Nov 2026.

1% of the 490 companies we see using Mailgun also show the other.

All 490 companies using Mailgun434 name it as a subprocessorMore in Email and communications

Zenlayer

Cloud and infrastructure

Zenlayer is a distributed cloud for AI. It is used to deploy and scale AI workloads globally across edge nodes and a high-speed network.

Summarized from zenlayer.com on 8 Nov 2026.

60% of the 5 companies we see using Zenlayer also show the other.

All 5 companies using Zenlayer5 name it as a subprocessorMore in Cloud and infrastructure

Industries

Among the companies above, by our own classification of their homepage.

Cloud and infrastructure3AI and machine learning2

Other pairs

Companies with their own evidence for both.

More with Mailgun

Cloudflare489companiesAmazon Web Services351companiesGoogle Workspace340companiesGoogle Tag Manager269companiesStripe248companiesOpenAI243companies

More with Zenlayer

Cloudflare5companies

Questions

How many companies use both Mailgun and Zenlayer?

3 companies in StrataDB's data have public evidence for both, and 3 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 Mailgun and Zenlayer?

Fly.io, Rackspace and Telnyx. Each one links to the evidence behind it.

How does StrataDB know a company uses Mailgun and Zenlayer?

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 Mailgun and Zenlayer

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