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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,544 companies indexed · Last updated: today
DirectoryIT & CommunicationSoftware DevelopmentPlan-Les-OuatesProton AG
Proton AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Proton AG provides privacy-focused online services, including end-to-end encrypted email (Proton Mail), VPN, encrypted cloud storage (Proton Drive), calendar, password manager (Proton Pass), and an authenticator. The company publishes open-source apps, uses end-to-end encryption, and highlights protections under Swiss privacy laws.

AI-generated
Offering

Products & services

Industry:Software Development
✓ Offered8
Proton for Business
Encrypted solutions for businesses, with professional email, business VPN, business video conferencing, professional calendar, professional cloud, Docs, Sheets, business AI assistant and professional password manager.
Professional email
Encrypted messaging with protection against spam, tracking and ads, web app and desktop and mobile clients, and domains and aliases in professional offerings.
Business VPN
Secure virtual private network for private browsing and access to content from different devices, with professional options and dedicated IP functionality for some subscriptions.
Business cloud
Encrypted cloud storage for files and photos, with web access and desktop and mobile apps, and sharing and collaboration capabilities.
Business video conferencing
Encrypted video calls for teams, for use on the web and with desktop and mobile apps, intended for internal collaboration and secure meetings.
Business calendar
Secure calendar to organize schedules, with multi-device synchronisation and integration into the Proton ecosystem, including for business users.
Business password manager
Password manager to protect teams’ digital identity, with password synchronisation and breach alerts, in a business version.
Business AI assistant
Confidential AI assistant for professionals, with encrypted conversations and use in the Proton ecosystem for writing and assistance.
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4.1/5

Proton AG

Trust & reputation

ranQ Trust Score of Proton AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of October 2026

Proton AG scores 61.3 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.32.324%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.100.010%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.100.08%
Proton AG scores 90.7 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.92.512%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.82.07%
Proton AG scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).86.722%
Proton AG scores 55.0 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.100.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

Proton AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 3.6 out of 5 stars from 140 customer reviews. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
3.6
of 5

Aggregated from 140 reviews across all connected sources

Sources
GGoogle3.6140
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Press

Media

June 28, 2024Media
Proton founders establish foundation as primary shareholder
startupticker.ch

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Location

Route de la Galaise 32
1228 Plan-Les-Ouates

At a glance

Legal form
Corporation
UID
CHE-354.686.492
Founded
2014 · 12 years
Last commercial register change
May 4, 2026
Employees
21 to 50
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.85.03%
    • Full methodology

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