Slack

Updated May 13, 2026
55%
arrow_upward1% YoY
#2

Summary

  • Slack ranks #2 within the Communication category, maintaining its position month-over-month.
  • As of May 2026, 55% of organizations who have a vendor in the Communication category use Slack: up < 1 percentage points from last year.
  • Slack has the highest adoption among micro-SMB companies (56%), compared to small-to-medium businesses (55%), mid-market (54%), and enterprise (51%).
  • 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

55%
arrow_upward1% YoY
Mid-Market, 44%
36%
42%
#2
#2

Adoption Rates by company size

Company sizeAdoption rate
SMB55%
Mid-market54%
Enterprise51%

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)
Apr 202636%42%Mid-Market, 44%51%54%55%
Mar 202633%42%Mid-Market, 44%51%54%55%
Feb 202637%42%Mid-Market, 44%51%54%55%
Jan 202634%42%Mid-Market, 44%50%53%56%
Dec 202540%42%Mid-Market, 44%50%53%56%
Nov 202533%42%Mid-Market, 44%50%53%56%
Oct 202525%43%Mid-Market, 44%50%53%56%
Sep 202551%45%Mid-Market, 45%52%54%59%
Aug 202555%45%Mid-Market, 45%50%53%58%
Jul 202553%45%Mid-Market, 45%50%53%56%
Jun 202543%45%Mid-Market, 45%50%52%55%
May 202541%46%Mid-Market, 46%52%51%55%
Apr 202551%47%Mid-Market, 45%52%52%55%
Mar 202543%49%Mid-Market, 46%55%52%53%
Feb 202540%49%Mid-Market, 46%53%51%53%
Jan 202541%50%Mid-Market, 46%51%52%52%
Dec 202437%51%Mid-Market, 47%53%52%52%
Nov 202434%52%Mid-Market, 45%52%52%52%
Oct 202439%54%Mid-Market, 45%57%52%52%
Sep 202445%55%Mid-Market, 46%58%52%52%
Aug 202444%54%Mid-Market, 46%56%51%50%
Jul 202437%52%Mid-Market, 45%55%50%49%
Jun 202435%52%Mid-Market, 46%56%49%48%
May 202432%52%Mid-Market, 46%54%49%48%

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