Slack

Updated Apr 17, 2026
41%
arrow_upward2% YoY
#2

Summary

  • Slack ranks #4 within the Communication category, maintaining its position month-over-month.
  • As of April 2026, 41% of organizations who have a vendor in the Communication category use Slack: up 2 percentage points from last year.
  • Slack has the highest adoption among micro-SMB companies (43%), compared to small-to-medium businesses (41%), mid-market (39%), and enterprise (34%).
  • Slack key capabilities include channel-based messaging, workflow automation, and third-party app integrations, supporting team communication and collaboration at scale.

Are businesses buying Slack?

Key stats

41%
arrow_upward2% YoY
Mid-Market, 43%
20%
12%
#2
#2

Adoption Rates by company size

Company sizeAdoption rate
SMB41%
Mid-market39%
Enterprise34%

About Slack

Slack is a business messaging platform that organizes team communication into channels, direct messages, and integrations. It connects tools and people across organizations to streamline collaboration and workflows.

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About this data

These insights come from Ramp’s procurement and renewal data, built on real-world transactions observed across our platform. Figures represent aggregated observations from Ramp Procurement and Renewals activity.

DateNew adopter shareCompetitor switch rateDominant FTE segmentAdoption rate (Enterprise)Adoption rate (Mid-Market)Adoption rate (SMB)
Mar 202633%49%Enterprise, 46%52%55%55%
Feb 202638%49%Enterprise, 46%52%54%56%
Jan 202635%51%Mid-Market, 45%52%53%56%
Dec 202540%51%Mid-Market, 59%52%53%56%
Nov 202534%52%Mid-Market, 61%52%53%56%
Oct 202526%52%Mid-Market, 61%52%53%56%
Sep 202552%52%Mid-Market, 60%53%54%59%
Aug 202555%53%Mid-Market, 58%52%53%58%
Jul 202553%55%Mid-Market, 59%51%53%56%
Jun 202544%60%Mid-Market, 54%52%52%55%
May 202541%59%Mid-Market, 53%53%52%55%
Apr 202551%61%Mid-Market, 56%53%52%55%
Mar 202543%65%Mid-Market, 56%56%52%53%
Feb 202540%80%Mid-Market, 58%53%51%53%
Jan 202542%81%Mid-Market, 58%52%52%52%
Dec 202437%83%Mid-Market, 60%54%52%52%
Nov 202434%81%Mid-Market, 60%53%52%52%
Oct 202440%86%Mid-Market, 58%58%52%52%
Sep 202445%82%Mid-Market, 86%58%52%51%
Aug 202444%80%Mid-Market, 84%56%51%50%
Jul 202437%88%Mid-Market, 84%55%50%49%
Jun 202435%100%Mid-Market, 87%57%49%48%
May 202432%100%Mid-Market, 86%54%49%48%
Apr 202430%100%Mid-Market, 84%55%51%48%

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