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Technologies / CircleCI / Slack

Companies using CircleCI and Slack

13 companies in our data have public evidence for both CircleCI and Slack, and 13 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.

13companies use both
87%of CircleCI users
1%of Slack users
13name 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

CompanyCircleCISlack
Able Careable-care.coAble Care provides a tablet-based falls assessment tool that measures grip strength, sit-to-stand, gait speed, and Timed Up and Go in under five minutes.Healthcare
Bubblebubble.io
Cavellcavell.aiCavell is an AI assistant that listens in during consultations and takes over administrative work such as medical reporting.AI and machine learningHealthcare
Donutdonut.comDonut is a platform that automates and manages employee experience programs such as onboarding, internal introductions, recognition, and engagement, delivered inside Slack or Microsoft Teams.HR and recruitingProductivity and collaboration
Flipletfliplet.comFliplet provides an AI-powered platform for building web and mobile software.
FYLDfyld.aiFYLD provides an AI-powered platform that captures field data from infrastructure work sites as it happens.AI and machine learningConstruction
GripAblegripable.coGripAble provides a sensor and rehabilitation activities for hand and wrist training in neurorehabilitation.Healthcare
Loadsmartloadsmart.comLoadsmart provides an AI-native transportation management platform and freight services that automate tasks like dock scheduling, tracking, and document collection.Logistics and supply chain
OpenApplyopenapply.comOpenApply provides an all-in-one learning platform for multi-curricula schools, along with admissions, advancement and CRM software.Education
Predictive Indexpredictiveindex.comPredictive Index provides behavioral assessments and a hiring and management platform powered by behavioral data.HR and recruiting
Straloostraloo.com.brStraloo provides an orthopedic care management line that guides cases from first symptom to outcome.Healthcare
Motionusemotion.comMotion provides AI tools for task management, project management, calendars, meetings, docs, and workflows.AI and machine learningProductivity and collaboration
Verseverse.incVerse provides faster grid interconnection and a platform to control and dispatch energy assets.Energy and climate

The two technologies

CircleCI

Developer tools

CircleCI is a continuous integration and delivery platform that automatically builds, tests, and deploys code changes from a version control repository. It is used by software teams to run automated tests and releases in clean containers or virtual machines, in the cloud or on their own servers.

Summarized from circleci.com on 8 Nov 2026.

87% of the 15 companies we see using CircleCI also show the other.

All 15 companies using CircleCI15 name it as a subprocessorMore in Developer tools

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.

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

Industries

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

Healthcare4AI and machine learning3HR and recruiting2Productivity and collaboration2Energy and climate2

Other pairs

Companies with their own evidence for both.

More with CircleCI

Cloudflare15companiesGoogle Workspace13companiesOpenAI12companiesGitHub11companiesAmazon Web Services9companiesAnthropic9companies

More with Slack

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

Questions

How many companies use both CircleCI and Slack?

13 companies in StrataDB's data have public evidence for both, and 13 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 CircleCI and Slack?

Able Care, Bubble, Cavell, Donut and Fliplet, and 8 more companies. Each one links to the evidence behind it.

How does StrataDB know a company uses CircleCI 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 CircleCI 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.

  • 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