Microsoft Teams vs Slack:Which is searched more?
In September 2026, Microsoft Teams and Slack were level in searches among business messaging platforms worldwide, with an estimated 4.1M branded searches each, at 32.5% of the total each. These are worldwide searches for English-language branded terms.
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Is Microsoft Teams or Slack more popular in search?
Compare the platforms businesses send messages with. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.
Share of searches by month for Microsoft Teams, Slack. The figures are in the table below the chart.
View monthly share of searches table
| Month | Microsoft Teams | Slack | Google Chat | Twilio | Zendesk | Vonage | Infobip | Sinch | Textmagic | MessageBird | Intercom |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 31.9% | 31.9% | 26.1% | 5.3% | 2.9% | 0.72% | 0.47% | 0.32% | 0.21% | 0.17% | 0% |
| Nov 2025 | 36.4% | 29.8% | 24.4% | 4.9% | 2.7% | 0.67% | 0.44% | 0.36% | 0.22% | 0.2% | <0.01% |
| Dec 2025 | 28% | 34.2% | 28% | 4.6% | 3.1% | 0.77% | 0.41% | 0.42% | 0.26% | 0.23% | <0.01% |
| Jan 2026 | 31.6% | 31.6% | 25.9% | 5.2% | 3.5% | 0.87% | 0.47% | 0.38% | 0.21% | 0.21% | <0.01% |
| Feb 2026 | 31.9% | 31.9% | 26.1% | 5.2% | 2.9% | 0.71% | 0.47% | 0.39% | 0.22% | 0.21% | <0.01% |
| Mar 2026 | 32% | 32% | 26.2% | 5.3% | 2.9% | 0.72% | 0.39% | 0.32% | 0.18% | 0.17% | <0.01% |
| Apr 2026 | 30% | 30% | 30% | 6% | 2.2% | 0.67% | 0.44% | 0.36% | 0.2% | 0.16% | <0.01% |
| May 2026 | 25.8% | 31.6% | 31.6% | 6.3% | 2.8% | 0.71% | 0.47% | 0.38% | 0.17% | 0.17% | <0.01% |
| Jun 2026 | 27.4% | 33.5% | 27.4% | 6.7% | 3% | 0.75% | 0.49% | 0.41% | 0.19% | 0.15% | <0.01% |
| Jul 2026 | 27.5% | 33.7% | 27.5% | 6.8% | 2.5% | 0.75% | 0.5% | 0.41% | 0.19% | 0.15% | 0% |
| Aug 2026 | 27.5% | 33.7% | 27.5% | 6.8% | 2.5% | 0.76% | 0.5% | 0.41% | 0.19% | 0.12% | <0.01% |
| Sep 2026 | 32.5% | 32.5% | 26.6% | 4.4% | 2.4% | 0.6% | 0.48% | 0.39% | 0.15% | 0.08% | <0.01% |
How has the Microsoft Teams and Slack comparison changed over the last 12 months?
3 findings
- The lead changed hands once in the 12 months ending September 2026: Slack took it in December 2025.
- Across the 12 months ending September 2026, Microsoft Teams’ share of searches among business messaging platforms worldwide moved from 31.9% to 32.5%, and its estimated monthly branded searches held steady at 4.1M.
- Across the 12 months ending September 2026, Slack’s share of searches among business messaging platforms worldwide moved from 31.9% to 32.5%, and its estimated monthly branded searches held steady at 4.1M.
How did search popularity change for business messaging platforms worldwide in September 2026?
2 changes
In September 2026, Microsoft Teams overtook Slack and Google Chat to become the leader among business messaging platforms worldwide, with 32.5% of the searches.
In September 2026, Slack lost share of searches among business messaging platforms worldwide, from 33.7% to 32.5%.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using Microsoft Teams’ and Slack’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Microsoft Teams
1 branded search term
- microsoft teams
Slack
1 branded search term
- slack
Other head-to-heads among business messaging platforms
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