Companies using ProtonMail by Proton Technologies AG in 2025
As of 2025, 18,443 verified companies use ProtonMail – across industries, company sizes, and geographies. This is real, verified data. Whether you’re looking to analyze the market, build a target list, or get a sales edge – this is your starting point.
What is ProtonMail by Proton Technologies AG?
ProtonMail by Proton AG delivers encrypted email services, emphasizing privacy and security. It is used to safeguard communications, particularly in industries and departments where confidentiality is paramount, such as legal, healthcare, and executive leadership.
Last updated date
August 17, 2025
Number of Companies using
18,443
The majority are based in the
United States
Most common industry?
Business Services
ProtonMail’s sample user list in 2025
Company Name
Country
Industry
Employees
Revenue
Product
We have data on 18,443 companies that use ProtonMail. Our ProtonMail customers list is available for download and comes enriched with vital company specifics, including industry classification, organizational size, geographical location, funding rounds, and revenue figures, among others.
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ProtonMail users and customers by country
United States
United Kingdom
2.6K Companies
Canada
2.6K Companies
Australia
2.6K Companies
Switzerland
2.6K Companies
Where ProtonMail Shows Up Most
ProtonMail is used across a wide range of sectors:
Business Services
Manufacturing
Finance
Custom Software & IT Services
Retail
From lean startups to global enterprises, ProtonMail’s footprint is wide, and that means opportunity.
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FAQs
Contact UsHow latest this data is?
This data is updated on August 17, 2025
What is ProtonMail?
ProtonMail by Proton AG delivers encrypted email services, emphasizing privacy and security. It is used to safeguard communications, particularly in industries and departments where confidentiality is paramount, such as legal, healthcare, and executive leadership.
How many companies are using ProtonMail in 2025?
As of 2025, there are 18,443 verified companies using ProtonMail.
What kind of data is available about companies using ProtonMail?
The data includes industry classification, organizational size, geographical location, funding rounds, and revenue figures.
Which country has the most companies using ProtonMail?
The United States has the highest number of companies using ProtonMail.
Which industry has the most companies using ProtonMail?
Business Services is the leading industry using ProtonMail.