Head to head · Last verified Nov 6, 2026

Slack vs Webex Who uses which, and who's switching.

We see 390K+ companies using Slack and 33K+ using Webex. In the last 12 months, 1,800+ started on Slack and 1,800+ on Webex. 0 moved from Slack to Webex, and 7 the other way.

390K+Slack33K+Webex
390K+Companies using Slack
33K+Companies using Webex
7Switched between them
Over time

New customers, month by month.

D95JFMAMJJASO160
SlackDec 2025 – Oct 2026
D150JFMAMJJASO110
WebexDec 2025 – Oct 2026
Switching

Who moves which way.

Companies that stopped using one and started using the other since Nov 6, 2025.

Slack

By company size.

2–10 staff14%
11–50 staff17%
51–200 staff32%
201–500 staff16%
501–1,000 staff8%
1,001–5,000 staff8%
5,001–10,000 staff2%
10,001+ staff3%
Webex

By company size.

2–10 staff1%
11–50 staff11%
51–200 staff29%
201–500 staff20%
501–1,000 staff12%
1,001–5,000 staff16%
5,001–10,000 staff4%
10,001+ staff6%
Slack

Top industries.

IT Services and IT Consulting5%
Software Development5%
Financial Services3%
Hospitals and Health Care3%
Advertising Services2%
Webex

Top industries.

Hospitals and Health Care6%
Government Administration6%
IT Services and IT Consulting5%
Financial Services5%
Banking4%
Questions

Slack vs Webex, answered.

Slack is used by more of the companies we see: 390K+ against 33K+.

In the last 12 months, 1,800+ companies started using Slack and 1,800+ started using Webex.

Since Nov 6, 2025, 0 moved from Slack to Webex and 7 moved from Webex to Slack.

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