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Technologies / Mailgun / Worldstream B.V.

Companies using Mailgun and Worldstream B.V.

2 companies in our data have public evidence for both Mailgun and Worldstream B.V., and 1 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
under 1%of Mailgun users
40%of Worldstream B.V. users
1name 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

CompanyMailgunWorldstream B.V.
Simple Analyticssimpleanalytics.comSimple Analytics provides cookieless web analytics that measure pageviews, events, referrers, and campaign data without cookies or visitor IDs.Data and analytics
AppSignalappsignal.comAppSignal provides error tracking and performance monitoring for applications.Developer tools

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.

under 1% of the 500 companies we see using Mailgun also show the other.

All 500 companies using Mailgun441 name it as a subprocessorMore in Email and communications

Worldstream B.V.

Cloud and infrastructure

Worldstream is a Dutch Cloud Infrastructure Provider. It provides data centers, dedicated servers, network, and cloud infrastructures for IT challenges at a fixed monthly price.

Summarized from worldstream.com on 8 Nov 2026.

40% of the 5 companies we see using Worldstream B.V. also show the other.

All 5 companies using Worldstream B.V.More in Cloud and infrastructure

Other pairs

Companies with their own evidence for both.

More with Mailgun

Cloudflare500companiesAmazon Web Services357companiesGoogle Workspace346companiesGoogle Tag Manager272companiesStripe257companiesOpenAI247companies

More with Worldstream B.V.

Cloudflare5companies

Questions

How many companies use both Mailgun and Worldstream B.V.?

2 companies in StrataDB's data have public evidence for both, and 1 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 Worldstream B.V.?

Simple Analytics and AppSignal. Each one links to the evidence behind it.

How does StrataDB know a company uses Mailgun and Worldstream B.V.?

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 Worldstream B.V.

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
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