How popular isProton Mail in search?
In August 2026, there were an estimated 4.1M branded searches for Proton Mail worldwide which is up 22% over the last 11 months. Proton Mail holds 18.1% estimated Share of Search among business email providers worldwide and is ranked 2nd of 5 competitors for search popularity. Worldwide · English terms: these are worldwide searches for English-language branded terms.
Microsoft 36560.3%
Proton Mail18.1%Zoho Mail12.1%
Google Workspace8.7%
Fastmail0.78%
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Which business email providers compete with Proton Mail?
Share of Search by month for Microsoft 365, Proton Mail, Zoho Mail, Google Workspace. The figures are in the table below the chart.
View monthly share of search table
| Month | Microsoft 365 | Proton Mail | Zoho Mail | Google Workspace | Fastmail |
|---|---|---|---|---|---|
| Oct 2025 | 75.2% | 9.7% | 9.7% | 4.9% | 0.51% |
| Nov 2025 | 75.4% | 11.1% | 7.4% | 5.6% | 0.48% |
| Dec 2025 | 71.5% | 12.9% | 8.6% | 6.4% | 0.55% |
| Jan 2026 | 71.3% | 13.8% | 7.6% | 6.7% | 0.59% |
| Feb 2026 | 73.2% | 11.6% | 7.8% | 6.9% | 0.5% |
| Mar 2026 | 71.2% | 13.8% | 7.6% | 6.8% | 0.59% |
| Apr 2026 | 67.3% | 14.8% | 9.9% | 7.4% | 0.52% |
| May 2026 | 68.6% | 15.1% | 8.3% | 7.4% | 0.64% |
| Jun 2026 | 63% | 16.8% | 11.3% | 8.2% | 0.72% |
| Jul 2026 | 58.2% | 19% | 12.7% | 9.3% | 0.81% |
| Aug 2026 | 60.3% | 18.1% | 12.1% | 8.7% | 0.78% |
| Sep 2026 | — | — | — | — | — |
| Rank | Brand | Share of Search | Estimated monthly branded searches | vs prior month | Share change |
|---|---|---|---|---|---|
| 1, held 1st | 60.3% | 13.7M | +9% | +2.1 points | |
| 2, held 2nd | 18.1% | 4.1M | +<0.01% | -0.9 points | |
| 3, held 3rd | 12.1% | 2.7M | -<0.01% | -0.6 points | |
| 4, held 4th | 8.7% | 2M | -0.91% | -0.5 points | |
| 5, held 5th | 0.78% | 176K | +0.09% | 0 points |
60.3%
held 1st · 13.7M estimated branded searches · +9% vs prior month · +2.1 points
18.1%
held 2nd · 4.1M estimated branded searches · +<0.01% vs prior month · -0.9 points
12.1%
held 3rd · 2.7M estimated branded searches · -<0.01% vs prior month · -0.6 points
8.7%
held 4th · 2M estimated branded searches · -0.91% vs prior month · -0.5 points
5.
Fastmail0.78%
held 5th · 176K estimated branded searches · +0.09% vs prior month · 0 points
Compare search popularity between Proton Mail and its closest rivals
How has branded search demand for Proton Mail changed worldwide over the last 12 months?
4 findings
- Across the 11 months ending August 2026, estimated monthly branded searches for Proton Mail worldwide rose from 3.4M to 4.1M.
- Across the 11 months ending August 2026, Proton Mail’s estimated Share of Search among business email providers worldwide increased from 9.7% to 18.1%.
- Across the 11 months ending August 2026, Proton Mail’s estimated Share of Search among business email providers worldwide peaked at 19% in July 2026 and was lowest at 9.7% in October 2025.
- Across the 11 months ending August 2026, Proton Mail rose from 3rd to 2nd among business email providers worldwide.
How did search popularity change for business email providers worldwide in August 2026?
4 changes
In August 2026, Microsoft 365 gained estimated Share of Search among business email providers worldwide, from 58.2% to 60.3%.
In August 2026, Proton Mail lost estimated Share of Search among business email providers worldwide, from 19% to 18.1%.
In August 2026, Zoho Mail lost estimated Share of Search among business email providers worldwide, from 12.7% to 12.1%.
In August 2026, Google Workspace lost estimated Share of Search among business email providers worldwide, from 9.3% to 8.7%.
How is Proton Mail measured?
Brandwave collects information about searches that people make online using Proton Mail’s name. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brand is growing, holding steady, or fading.
7 branded search terms
- email proton mail
- proton mail
- proton mail app
- proton mail business email
- proton mail email
- proton mail software
- protonmail
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