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Technologies / Slack / UpCloud

Companies using Slack and UpCloud

7 companies in our data have public evidence for both Slack 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.

7companies use both
under 1%of Slack users
27%of UpCloud users
5name both as subprocessors

Companies using one are 3.3 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

CompanySlackUpCloud
Cloudenclouden.netClouden Oy designs and builds AI-native and cloud-native systems, including cloud architecture and implementation.AI and machine learningCloud and infrastructure
Contrackocontracko.comContracko is an AI contract management platform that reviews contracts for risks and obligations, extracts key data, and tracks deadlines.AI and machine learningLegal
Controlacontrola.aiControla provides small business cybersecurity that connects existing tools like Microsoft 365 and Google Workspace, scans for security gaps, and guides users through fixes.Cybersecurity
Mailcoachmailcoach.appMailcoach is an email marketing platform for sending campaigns, automations, and transactional emails.Marketing
NetBirdnetbird.ioNetBird provides an identity-based zero trust network access platform that replaces traditional VPNs.Cloud and infrastructureCybersecurity
KugelAudiokugelaudio.comKugelAudio provides voice AI text-to-speech and speech recognition models, including Kugel Ear 1, which transcribes callers' speech and flags uncertain words to voice bots.AI and machine learningCommunications
Lettermintlettermint.coLettermint provides email delivery services for transactional emails, broadcast newsletters and marketing campaigns, and inbound email processing.Communications

The two technologies

Slack

by Salesforce · Productivity

Slack is a collaboration platform where teams chat, share files, and work together in channels. It is used for team communication, connecting apps and agents, and automating everyday work.

Summarized from slack.com on 8 Nov 2026.

under 1% of the 1,936 companies we see using Slack also show the other.

All 1,936 companies using Slack1,343 name it as a subprocessorMore in Productivity

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.

27% of the 26 companies we see using UpCloud also show the other.

All 26 companies using UpCloud24 name it as a subprocessorMore in Cloud and infrastructure

Industries

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

AI and machine learning3Cloud and infrastructure2Cybersecurity2Communications2

Other pairs

Companies with their own evidence for both.

More with Slack

Cloudflare1,813companiesGoogle Workspace1,580companiesAmazon Web Services1,298companiesStripe896companiesGoogle Tag Manager880companiesGoogle810companies

More with UpCloud

Cloudflare25companiesGoogle15companiesStripe15companiesGoogle Workspace14companiesAmazon Web Services9companiesHetzner8companies

Questions

How many companies use both Slack and UpCloud?

7 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 Slack and UpCloud?

Clouden, Contracko, Controla, Mailcoach and NetBird, and 2 more companies. Each one links to the evidence behind it.

How does StrataDB know a company uses Slack 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 Slack 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.

  • Every company and vendor, with its public source
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