ProtonMail
ProtonMail is a service that provides easy to use secure email.
Market Share of ProtonMail
Current Customer(s)
730
Market Share (Est.)
0.10%
Ranking
#15
Top Competitors and Alternatives of ProtonMail
The top three of ProtonMail’s competitors in the Hosted Email category are Microsoft Outlook with 41.21%, Microsoft Exchange Online with 30.51%, SiteGround Email Hosting with 23.00% market share.
Popular Comparisons
Top Competitors and Alternatives of ProtonMail
The top three of ProtonMail’s competitors in the Hosted Email category are Microsoft Outlook with 41.21%, Microsoft Exchange Online with 30.51%, SiteGround Email Hosting with 23.00% market share.
ProtonMail vs Microsoft Outlook
ProtonMail vs Microsoft Exchange Online
ProtonMail vs SiteGround Email Hosting
ProtonMail vs Zoho Mail
ProtonMail vs Rackspace Email
ProtonMail vs Strato
ProtonMail vs Postfix
ProtonMail vs Network Solutions Email
Customers of ProtonMail
Around the world in 2026, over 708 companies have started using ProtonMail as Hosted Email tool.
| Customers | Employee Range | City | Region | Country | Social Links |
|---|---|---|---|---|---|
| Upwork | 10,000+ | San Francisco | California | United States |     |
| Proton | 10,000+ | Geneve | Geneva | Switzerland | |
| California State University, Northridge | 10,000+ | Los Angeles | California | United States | |
| HCA Healthcare | 10,000+ | Nashville | Tennessee | United States | |
| Bugcrowd | 10,000+ | San Francisco | California | United States | |
| WetGenes | 5,000 - 9,999 | Derry | Northern Ireland | United Kingdom | |
| HackerOne | 5,000 - 9,999 | San Francisco | California | United States | |
| Burson | 5,000 - 9,999 | New York City | New York | United States | |
| Gao Tek Inc | 1,000 - 4,999 | Pickering | Ontario | Canada | |
| San Antonio Shoemakers | 1,000 - 4,999 | San Antonio | Texas | United States | |
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ProtonMail Customers by Products and Services
The top three products and services offering customers that use ProtonMail for Hosted Email are Web Development (24), Web Design (16), Software Development (15).
Customers
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ProtonMail Customers by Employee Size
The majority of ProtonMail's customers for the hosted-email category fall in the company size of 0 - 9 employees (454 companies), 20 - 49 employees (181 companies), 100 - 249 employees (34 companies).
Employee Size
ProtonMail Customers by Geography
The top three geographies of ProtonMail for hosted-email are the United States with 366(59.90%), Netherlands with 57(9.33%), United Kingdom with 50(8.18%) customers respectively.
Customers
Employees of ProtonMail
Also see other Products/Services by ProtonMail in:
FAQ
Find answers to the most often asked questions by users.
Who are the top ProtonMail competitors?
ProtonMail’s Top competitors in the hosted-email category are Microsoft Outlook, Microsoft Exchange Online, SiteGround Email Hosting. You can view a full list of ProtonMail competitors here. 6sense uses advanced data mining and AI algorithms to track customers and competitors of ProtonMail and 40,000 other technologies on the internet. You can also compare ProtonMail and its feature with top competitors here : ProtonMail vs Microsoft Outlook ProtonMail vs Microsoft Exchange Online ProtonMail vs SiteGround Email Hosting.
What is ProtonMail customer distribution based on company size?
What is ProtonMail market share in the hosted-email?
What are the top countries that use ProtonMail?
What are the top industries that use ProtonMail?
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