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Slack

Updated Mar 27, 2026
51%
arrow_upward3% YoY
#2

Summary

  • Slack ranks #2 within the Communication category, maintaining its position month-over-month.
  • As of March 2026, 51% of organizations who have a vendor in the Communication category use Slack: up 3 percentage points from last year.
  • Slack has the highest adoption among micro-SMB companies (53%), compared to small-to-medium businesses (52%), mid-market (51%), and enterprise (47%).
  • 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

51%
arrow_upward3% YoY
Enterprise, 46%
32%
1%
#2
#2

Adoption Rates by company size

Company sizeAdoption rate
SMB52%
Mid-market51%
Enterprise47%

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.

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)
Feb 202632%1%Enterprise, 46%47%51%52%
Jan 202631%1%Mid-Market, 45%46%50%52%
Dec 202533%1%Mid-Market, 59%47%50%52%
Nov 202529%1%Mid-Market, 61%46%50%52%
Oct 202524%1%Mid-Market, 61%46%50%52%
Sep 202545%1%Mid-Market, 60%47%51%54%
Aug 202549%1%Mid-Market, 58%45%50%53%
Jul 202546%1%Mid-Market, 59%45%50%52%
Jun 202537%1%Mid-Market, 54%46%49%51%
May 202535%1%Mid-Market, 53%46%49%51%
Apr 202544%1%Mid-Market, 56%47%49%50%
Mar 202537%1%Mid-Market, 56%49%49%49%
Feb 202533%1%Mid-Market, 58%47%48%49%
Jan 202536%2%Mid-Market, 58%46%49%48%
Dec 202431%2%Mid-Market, 60%48%48%48%
Nov 202430%2%Mid-Market, 60%47%49%48%
Oct 202434%3%Mid-Market, 58%51%49%48%
Sep 202439%2%Mid-Market, 85%52%49%48%
Aug 202439%2%Mid-Market, 84%50%48%46%
Jul 202432%2%Mid-Market, 84%50%47%45%
Jun 202431%2%Mid-Market, 87%53%46%45%
May 202429%2%Mid-Market, 86%49%46%44%
Apr 202426%2%Mid-Market, 84%49%47%44%
Mar 202424%2%Mid-Market, 85%50%47%44%

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