Companies using Mailgun and UpCloud

6 companies in our data have public evidence for both Mailgun and UpCloud, and 5 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

1%of Mailgun users

23%of UpCloud users

5name both as subprocessors

Companies using one are 11 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

Company	Mailgun	UpCloud
Bentobentonow.comBento provides campaigns, automations, and transactional email in one place, with pre-send checks, send batching, and delivery logs.Communications Marketing
Contrackocontracko.comContracko is an AI contract management platform that reviews contracts for risks and obligations, extracts key data, and tracks deadlines.AI and machine learning Legal
Jobsoidjobsoid.comJobsoid provides recruitment software for sourcing, engaging, and managing candidates, including job posting, candidate management, and interview scheduling.HR and recruiting
Mopinionmopinion.comNetigate Digital provides feedback software for building and triggering surveys on websites, apps, and email campaigns.
WeatherAPI.comWeatherAPI provides a weather API with forecast, history, radar, air quality, marine, solar and other data through a single API key.Developer tools
weatherAI.ioweatherAI.io provides an API that returns go/no-go decisions, scores, best time windows and risk factors for outdoor activities.

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 487 companies we see using Mailgun also show the other.

All 487 companies using Mailgun 432 name it as a subprocessor More in Email and communications

UpCloud

Cloud and infrastructure

UpCloud is a cloud infrastructure platform. It is used to deploy and run cloud servers, storage, networking and managed services.

Summarized from upcloud.com on 8 Nov 2026.

23% of the 26 companies we see using UpCloud also show the other.

All 26 companies using UpCloud 24 name it as a subprocessor More in Cloud and infrastructure

Other pairs

Companies with their own evidence for both.

More with Mailgun

Cloudflare488companies

Amazon Web Services350companies

Google Workspace339companies

Google Tag Manager268companies

Stripe248companies

OpenAI242companies

More with UpCloud

Cloudflare25companies

Google15companies

Stripe15companies

Google Workspace14companies

Amazon Web Services9companies

Hetzner8companies

Questions

How many companies use both Mailgun and UpCloud?

6 companies in StrataDB's data have public evidence for both, and 5 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 UpCloud?

Bento, Contracko, Jobsoid, Mopinion and WeatherAPI.com, and 1 more company. Each one links to the evidence behind it.

How does StrataDB know a company uses Mailgun and UpCloud?

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 UpCloud

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.

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