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Technologies / Discourse / Slack

Companies using Discourse and Slack

9 companies in our data have public evidence for both Discourse and Slack, and 7 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.

9companies use both
60%of Discourse users
under 1%of Slack users
7name both as subprocessors

Companies using one are 7.3 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

CompanyDiscourseSlack
Aptibleaptible.comAptible provides secure, audit-ready cloud infrastructure for deploying apps, databases, and AI.Cloud and infrastructureHealthcare
Dataquestdataquest.ioDataquest provides online courses, skill paths, and career paths for learning data and AI skills such as Python, SQL, data analytics, and AI engineering through hands-on practice and projects.Data and analyticsEducation
Finsweetfinsweet.comFinsweet designs and builds websites and web apps for B2B and enterprise companies, including rebrands, migrations, and custom applications.
Flowerflower.aiFlower builds a full-stack platform for collaborative and federated AI, including a SuperGrid, models, and an agent.AI and machine learningDeveloper tools
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
Nylasnylas.comNylas provides APIs for email, calendar, contacts, and meeting data that sync across providers like Gmail, Microsoft Graph, Exchange, and IMAP.CommunicationsDeveloper tools
Octopus Deployoctopus.comOctopus Deploy provides a continuous delivery platform that handles release, deployment, and operations after a CI tool.Developer tools
Preziprezi.comPrezi is an interactive presentation platform for building and presenting slides with live polls, quizzes, and Q&A.EducationProductivity and collaboration
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

The two technologies

Discourse is an open source, customizable community platform that lets people create knowledge through conversation. It is used to build and run online communities, support hubs, team workspaces, product feedback forums, and developer communities.

Summarized from discourse.com on 8 Nov 2026.

60% of the 15 companies we see using Discourse also show the other.

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 1,926 companies we see using Slack also show the other.

Industries

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

Developer tools4Cloud and infrastructure2Data and analytics2Education2

Other pairs

Companies with their own evidence for both.

Questions

How many companies use both Discourse and Slack?

9 companies in StrataDB's data have public evidence for both, and 7 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 Discourse and Slack?

Aptible, Dataquest, Finsweet, Flower and Fly.io, and 4 more companies. Each one links to the evidence behind it.

How does StrataDB know a company uses Discourse and Slack?

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 Discourse and Slack

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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