VendorStacks

Companies using Slack

119 companies in the VendorStacks index name Slack as part of their productivity stack in their public web presence. Every match carries the quoted source row it was extracted from — no inference, no fingerprint guessing.

Productivity

Sample of companies using Slack

CompanyUsed for
linear.appProductivity
wetravel.comProductivity
way.comProductivity
tropo.comProductivity
toggl.comProductivity
thriveglobal.comProductivity
savvycal.comProductivity
salesboom.comProductivity
restaurant365.comProductivity
reserve.comProductivity

Showing 10 of 119. The full list — with evidence, source URLs and refresh timestamps — comes back from one API call.

curl "https://vendorradar-production.up.railway.app
/v1/prospect?vendor=Slack" \
  -H "Authorization: Bearer vr_live_…"
Get an API key — 25 free creditsAPI reference

Commonly appears alongside

Vendors that most often show up in the same stacks as Slack.

AWS 97Stripe 60Twilio 60Google Cloud 54OpenAI 52HubSpot 51

How this is collected

VendorStacks runs a multi-source extraction pipeline over a company's public web presence: crawling, rendering JavaScript pages and PDFs, and matching a deterministic vendor taxonomy against what the company itself publishes. Nothing is inferred from tracking pixels or guessed from job posts — if we say a company uses Slack, we can show you the sentence that says so. How it works →

Most recent refresh in this set: 2026-07-27.