Brandwave

Business email providers:Which brands are most popular in search?

In August 2026, Microsoft 365 was the most searched among business email providers worldwide, with an estimated 13.7M branded searches and 60.3% estimated Share of Search within this set. Worldwide · English terms: these are worldwide searches for English-language branded terms.

Share of Search, August 2026
  1. Microsoft 36560.3%
  2. Proton Mail18.1%
  3. Zoho Mail12.1%
  4. Google Workspace8.7%
  5. Fastmail0.78%

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Share of SearchLeaderboard

Compare services and tools used to provide hosted business email accounts. 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 Search among business email providers worldwide, by month

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
MonthMicrosoft 365Proton MailZoho MailGoogle WorkspaceFastmail
Oct 202575.2%9.7%9.7%4.9%0.51%
Nov 202575.4%11.1%7.4%5.6%0.48%
Dec 202571.5%12.9%8.6%6.4%0.55%
Jan 202671.3%13.8%7.6%6.7%0.59%
Feb 202673.2%11.6%7.8%6.9%0.5%
Mar 202671.2%13.8%7.6%6.8%0.59%
Apr 202667.3%14.8%9.9%7.4%0.52%
May 202668.6%15.1%8.3%7.4%0.64%
Jun 202663%16.8%11.3%8.2%0.72%
Jul 202658.2%19%12.7%9.3%0.81%
Aug 202660.3%18.1%12.1%8.7%0.78%
Sep 2026—————

This month’s ranking, August 2026

  1. 1.Microsoft 365

    60.3%

    held 1st · 13.7M estimated branded searches · +9% vs prior month · +2.1 points

  2. 2.Proton Mail

    18.1%

    held 2nd · 4.1M estimated branded searches · +<0.01% vs prior month · -0.9 points

  3. 3.Zoho Mail

    12.1%

    held 3rd · 2.7M estimated branded searches · -<0.01% vs prior month · -0.6 points

  4. 4.Google Workspace

    8.7%

    held 4th · 2M estimated branded searches · -0.91% vs prior month · -0.5 points

  5. 5.Fastmail

    0.78%

    held 5th · 176K estimated branded searches · +0.09% vs prior month · 0 points

Compare search popularity between leading brands

Which brand is most popular in search among business email providers worldwide?

In August 2026, Microsoft 365 was the most searched among business email providers worldwide, with an estimated 13.7M branded searches and 60.3% estimated Share of Search within this set. Proton Mail is in 2nd place, 42.2 percentage points behind at 18.1% Share of Search.

Global business email providers, last 12 months ending September 2026
BrandShare of SearchPeakLowRank
Microsoft 36575.2% → 60.3%75.4%Nov 202558.2%Jul 20261st
Proton Mail9.7% → 18.1%19%Jul 20269.7%Oct 20253rd → 2nd
Zoho Mail9.7% → 12.1%12.7%Jul 20267.4%Nov 20252nd → 3rd
Google Workspace4.9% → 8.7%9.3%Jul 20264.9%Oct 20254th
Fastmail0.51% → 0.78%0.81%Jul 20260.48%Nov 20255th

Each finding as a sentence

  • Across the 11 months ending August 2026, Microsoft 365’s estimated Share of Search among business email providers worldwide decreased from 75.2% to 60.3%.
  • 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, Zoho Mail’s estimated Share of Search among business email providers worldwide increased from 9.7% to 12.1%.
  • Across the 11 months ending August 2026, Google Workspace’s estimated Share of Search among business email providers worldwide increased from 4.9% to 8.7%.
  • Across the 11 months ending August 2026, Microsoft 365’s estimated Share of Search among business email providers worldwide peaked at 75.4% in November 2025 and was lowest at 58.2% in July 2026.
  • 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, Zoho Mail’s estimated Share of Search among business email providers worldwide peaked at 12.7% in July 2026 and was lowest at 7.4% in November 2025.
  • Across the 11 months ending August 2026, Google Workspace’s estimated Share of Search among business email providers worldwide peaked at 9.3% in July 2026 and was lowest at 4.9% in October 2025.
  • Across the 11 months ending August 2026, Proton Mail rose from 3rd to 2nd among business email providers worldwide.
  • Across the 11 months ending August 2026, Zoho Mail fell from 2nd to 3rd among business email providers worldwide.
  • Across the 11 months ending August 2026, Fastmail held steady: its estimated Share of Search among business email providers worldwide moved less than 0.5 percentage points.

How did search popularity change for business email providers worldwide in August 2026?

  1. In August 2026, Microsoft 365 gained estimated Share of Search among business email providers worldwide, from 58.2% to 60.3%.

  2. In August 2026, Proton Mail lost estimated Share of Search among business email providers worldwide, from 19% to 18.1%.

  3. In August 2026, Zoho Mail lost estimated Share of Search among business email providers worldwide, from 12.7% to 12.1%.

  4. In August 2026, Google Workspace lost estimated Share of Search among business email providers worldwide, from 9.3% to 8.7%.

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