/
Log inGet free API keyAccount
Menu
CompaniesTechnologiesAI indexDocsPricingChrome extensionLog inAccount

Technologies / Acuity Scheduling / Slack

Companies using Acuity Scheduling and Slack

5 companies in our data have public evidence for both Acuity Scheduling and Slack, 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.

5companies use both
100%of Acuity Scheduling users
under 1%of Slack users
5name both as subprocessors

Companies using one are 12 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

CompanyAcuity SchedulingSlack
Caylentcaylent.comCaylent is a cloud services company that provides AI and AWS expertise to help organizations with cloud solutions.AI and machine learningCloud and infrastructure
Expressableexpressable.comExpressable provides online speech therapy through live one-on-one sessions with speech therapists, plus home practice activities and text support.Healthcare
Guildiaguildia.aiGuildia provides an AI employee that answers calls, texts and chats and drafts emails for businesses.AI and machine learningCustomer support
Nookalnookal.comNookal provides an all-in-one clinic management platform for allied health professionals, covering scheduling, billing, patient records and clinical tools.Healthcare
Relay Commercerelaycommerce.ioRelay provides an ecosystem of Shopify apps and expertise for e-commerce, covering popups, email/SMS, package protection, subscriptions, and predictive flows.E-commerce

The two technologies

Acuity Scheduling

Productivity

Acuity Scheduling is flexible scheduling software that helps businesses automate workflows, payments, and bookings. It lets customers book, reschedule, or cancel appointments on their own while businesses control their calendars.

Summarized from acuityscheduling.com on 9 Nov 2026.

100% of the 5 companies we see using Acuity Scheduling also show the other.

All 5 companies using Acuity Scheduling5 name it as a subprocessorMore in Productivity

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 2,056 companies we see using Slack also show the other.

All 2,056 companies using Slack1,427 name it as a subprocessorMore in Productivity

Industries

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

AI and machine learning2Healthcare2E-commerce2

Other pairs

Companies with their own evidence for both.

More with Acuity Scheduling

Cloudflare5companiesHubSpot5companies

More with Slack

Cloudflare1,930companiesGoogle Workspace1,671companiesAmazon Web Services1,374companiesStripe964companiesGoogle Tag Manager921companiesGoogle875companies

Questions

How many companies use both Acuity Scheduling and Slack?

5 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 Acuity Scheduling and Slack?

Caylent, Expressable, Guildia, Nookal and Relay Commerce. Each one links to the evidence behind it.

How does StrataDB know a company uses Acuity Scheduling 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 Acuity Scheduling 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