Proton AG

Proton AG is a Swiss privacy-technology company that operates an integrated ecosystem of encrypted and privacy-focused consumer and business services. Its principal products include Proton Mail, Calendar, Drive, Docs, Sheets, VPN, Pass, Authenticator, Meet, Lumo AI, and related business services. The non-profit Proton Foundation is Proton AG's primary and largest voting shareholder.

About This Organization

Description
Proton AG operates the principal Proton consumer and business ecosystem. The company combines privacy-focused software, open-source client applications, end-to-end and zero-access encryption where technically applicable, subscription-supported free services, independently reviewed security controls, and self-operated infrastructure. Proton AG remains a commercial for-profit company while the Proton Foundation exercises mission-oriented control through its position as the primary and largest voting shareholder. Proton Financial AG, a wholly owned subsidiary, separately develops and provides the non-custodial Proton Wallet software.
Purpose
To develop financially sustainable digital services that reduce surveillance-based data collection and give individuals and organizations greater control over communications, files, credentials, network traffic, collaboration, and other digital information.
Mission Statement
To advance privacy, freedom, and digital control by building accessible internet services that place users and society ahead of advertising surveillance and short-term profit.
Vision Statement
An internet in which privacy is available by default and digital services operate for the benefit of people rather than primarily for data extraction.
Slogan
Privacy by default
Core Values
People over profitPrivacy as a fundamental rightFreedom and democracyScientific rigorTechnical excellenceIntegrityTransparencyOpen-source developmentCommunity participationMission continuity

Identity and Classification

Legal Name
Proton AG
Short Name
Proton
Trade Names / DBA
Proton
Alternate Names
Proton Technologies
Entry Category
operating_company
Organization Type
Privacy-focused technology company
Legal Form
Aktiengesellschaft (Swiss company limited by shares)
Profit Status
For-profit operating company
Ownership Type
Privately held company controlled through the Proton Foundation as its primary and largest voting shareholder
Operating Status
active
Publicly Traded
No
Primary Industry
Privacy-focused software and internet services
Industries
SoftwareCybersecurityInformation securityEncrypted communicationsVirtual private networksCloud storageBusiness collaboration softwarePassword managementArtificial intelligenceFinancial software
Sectors
TechnologyCybersecurityCloud servicesDigital communicationsArtificial intelligenceFinancial technology software
Business Models
Freemium digital servicesConsumer subscriptionsFamily subscriptionsBusiness subscriptionsEnterprise servicesSubscription-supported free access
Customer Types
IndividualsFamiliesSmall businessesMedium-sized businessesEnterprisesNonprofit and civil-society organizations

Products, Services and Operations

Products
Proton Mail and Contacts
Category
Encrypted communications
Description
Email, address-book, custom-domain, and business communication services using zero-access storage and end-to-end encryption for supported workflows.
Status
active
Availability Regions
Worldwide, subject to applicable law and service availability
Proton Calendar
Category
Scheduling and calendar software
Description
A privacy-focused calendar service providing encrypted event information, invitations, sharing, and scheduling features.
Status
active
Availability Regions
Worldwide, subject to applicable law and service availability
Proton Drive
Category
Encrypted cloud storage
Description
End-to-end encrypted file storage, backup, synchronization, version history, and controlled file sharing.
Status
active
Availability Regions
Worldwide, subject to applicable law and service availability
Proton Docs
Category
Collaborative document editing
Description
A browser-based, end-to-end encrypted collaborative document editor integrated with Proton Drive.
Status
active
Availability Regions
Worldwide, subject to applicable law and service availability
Proton Sheets
Category
Collaborative spreadsheet software
Description
An encrypted spreadsheet and real-time collaboration application integrated with Proton Drive.
Status
active
Availability Regions
Worldwide, subject to applicable law and service availability
Proton VPN
Category
Virtual private network
Description
A privacy-focused VPN service providing encrypted device-to-server tunnels, IP masking, censorship resistance, and a publicly audited no-logs design.
Status
active
Availability Regions
Worldwide, subject to applicable law and service availability
Proton Pass
Category
Password and identity management
Description
An end-to-end encrypted password manager for passwords, passkeys, secure notes, payment-card records, and hide-my-email aliases.
Status
active
Availability Regions
Worldwide, subject to applicable law and service availability
Proton Authenticator
Category
Two-factor authentication
Description
An open-source authenticator that generates time-based one-time passwords locally and can optionally synchronize data using end-to-end encryption.
Status
active
Availability Regions
Worldwide, subject to applicable law and service availability
Proton Meet
Category
Video meetings and collaboration
Description
An end-to-end encrypted video-meeting service supporting calls, screen sharing, and meeting chat.
Status
active
Availability Regions
Worldwide, subject to applicable law and service availability
Lumo AI
Category
Privacy-focused artificial intelligence
Description
A private artificial-intelligence assistant for questions, writing, analysis, files, and web-assisted tasks. Saved history uses zero-access encryption, while model inference requires processing prompts on Proton-controlled infrastructure.
Status
active
Availability Regions
Worldwide, subject to applicable law and service availability
Proton Wallet
Category
Non-custodial Bitcoin wallet software
Description
A non-custodial Bitcoin wallet interface developed and provided by Proton Financial AG. Users control their private keys, and Proton Financial AG states that it does not provide banking, payment, exchange, or custodial services.
Status
active
Availability Regions
Subject to applicable law, account eligibility, and product availability
Services
Proton Free
Category
Free consumer service plan
Description
Provides limited access to selected Proton privacy services without behavioral advertising.
Status
active
Availability Regions
Worldwide, subject to applicable law and service availability
Proton Unlimited
Category
Consumer subscription bundle
Description
Combines premium versions of major Proton services under one subscription.
Status
active
Availability Regions
Worldwide, subject to applicable law and service availability
Proton Duo
Category
Two-person subscription plan
Description
Provides premium Proton services and shared storage for two users.
Status
active
Availability Regions
Worldwide, subject to applicable law and service availability
Proton Family
Category
Family subscription plan
Description
Provides premium Proton services and shared storage for up to six family members.
Status
active
Availability Regions
Worldwide, subject to applicable law and service availability
Proton for Business
Category
Business privacy and cybersecurity services
Description
Business plans providing encrypted communications, storage, collaboration, password management, VPN access, administration, and support.
Status
active
Availability Regions
Worldwide, subject to applicable law and contractual availability
Proton Workspace
Category
Encrypted business collaboration suite
Description
An integrated business suite combining Mail, Calendar, Drive, Docs, Sheets, Pass, VPN, Meet, and plan-dependent access to Lumo.
Status
active
Availability Regions
Worldwide, subject to applicable law and contractual availability
Brands
Proton
Relationship
Master brand
Description
The principal privacy-technology brand used across Proton AG's consumer and business ecosystem.
Status
active
Official URL
Proton Mail
Relationship
Product brand
Description
Encrypted email and communications brand.
Status
active
Proton VPN
Relationship
Product brand
Description
Privacy-focused virtual private network brand.
Status
active
Proton Drive
Relationship
Product brand
Description
Encrypted storage and collaboration brand.
Status
active
Proton Pass
Relationship
Product brand
Description
Password and digital-identity management brand.
Status
active
Lumo
Relationship
Product brand
Description
Privacy-focused artificial-intelligence assistant brand.
Status
active
Proton Wallet
Relationship
Subsidiary-operated product brand
Description
Non-custodial Bitcoin wallet software provided by Proton Financial AG.
Status
active
Platforms
Proton Web Applications
Platform Type
Web
Description
Browser-accessible interfaces for supported Proton services.
Official URL
Proton Mobile Applications
Platform Type
iOS and Android
Description
Mobile applications for supported Proton services.
Official URL
Proton Desktop Applications
Platform Type
Windows, macOS, and Linux
Description
Desktop applications available for supported Proton services and operating systems.
Official URL
Proton Browser Extensions
Platform Type
Browser extension
Description
Browser integrations for supported services, including Proton Pass.
Business Segments
Consumer Privacy Services
Description
Free and paid services for individuals and families, including encrypted communications, storage, passwords, VPN, scheduling, collaboration, and AI tools.
Regions
Worldwide, subject to product availability
Products And Services
Proton MailProton CalendarProton DriveProton DocsProton SheetsProton VPNProton PassProton AuthenticatorProton MeetLumo AI
Official URL
Proton for Business
Description
Subscription-based privacy, collaboration, communications, storage, identity, and cybersecurity services for organizations.
Regions
Worldwide, subject to contractual and legal availability
Products And Services
Proton WorkspaceProton MailProton CalendarProton DriveProton DocsProton SheetsProton PassProton VPNProton MeetLumo AI
Financial Software
Description
Non-custodial wallet software provided through the wholly owned subsidiary Proton Financial AG.
Regions
Subject to applicable law and product availability
Products And Services
Proton Wallet
Programs and Initiatives
Open-Source Development
Program Type
Software transparency and public development
Description
Proton publishes client application source code and maintains open-source privacy and encryption technology.
Status
active
Security Audits and Bug Bounty
Program Type
Security assurance
Description
Proton uses independent audits, public assurance reports, code review, and vulnerability reporting to support external scrutiny.
Status
active
Free Privacy Services
Program Type
Public-access privacy initiative
Description
Paid subscriptions support free access to selected Proton privacy services.
Status
active
Foundation Revenue Allocation
Program Type
Public-benefit funding commitment
Description
Proton has publicly committed to allocating a portion of revenue to Proton Foundation charitable activity when financial conditions allow.
Status
active

History

Founded Year
2014
Founders
Andy Yen
Role
Founder and Chief Executive Officer
Description
Proton founder and executive leader associated with the original privacy-focused email project developed by scientists who met at CERN.
Jason Stockman
Role
Co-founder
Description
Proton co-founder identified in Proton's 2024 Foundation announcement as one of the contributors establishing Foundation control.
Founding Location
Location Name
CERN
City
Geneva
State Province
Geneva
Country
Switzerland
Country Code
CH
Incorporation Jurisdiction
Jurisdiction Name
Swiss Confederation
State Province
Geneva
Country
Switzerland
Country Code
CH
History Summary
The Proton project was conceived in 2013 by scientists who met at CERN. Proton Mail entered public beta on 16 May 2014 following a public crowdfunding campaign. Proton subsequently expanded into VPN, calendar, cloud storage, collaborative documents and spreadsheets, password management, authentication, private artificial intelligence, video meetings, business collaboration, and non-custodial wallet software. In June 2024, the founders transferred and committed shares to the Proton Foundation, making the Foundation Proton's primary shareholder and strengthening mission-oriented control.
Timeline
Original Proton concept developed
Year
2013
Description
The founding team formed around a privacy-focused email concept after meeting at CERN.
Proton Mail entered public beta
Date
2014-05-16
Year
2014
Description
Proton Mail became publicly available as the first major service in the Proton ecosystem.
CRV divestment announced
Date
2021-03-26
Year
2021
Description
Proton reported that CRV had completed its divestment and that the minority shares were transferred to FONGIT.
Swiss surveillance-classification appeal upheld
Date
2021-10-22
Year
2021
Description
The Swiss Federal Administrative Court upheld Proton's appeal concerning the classification of email services under telecommunications-surveillance law.
ISO 27001 certification
Date
2024-05-02
Year
2024
Description
Proton reported receiving ISO 27001 certification for its information-security management system.
Proton Foundation became primary shareholder
Date
2024-06-17
Year
2024
Description
Founders endowed the Proton Foundation with Proton shares, establishing it as Proton's primary shareholder and a mission-protection mechanism.
Proton Wallet launched
Date
2024-07-24
Year
2024
Description
Proton introduced a non-custodial Bitcoin wallet operated through Proton Financial AG.
First SOC 2 Type II attestation completed
Date
2025-07-22
Year
2025
Description
Proton announced completion of its first SOC 2 Type II attestation following an examination by Schellman.
Lumo AI launched
Date
2025-07-23
Year
2025
Description
Proton introduced Lumo as a privacy-focused artificial-intelligence assistant.
Proton Authenticator launched
Date
2025-07-31
Year
2025
Description
Proton introduced an open-source two-factor authentication application.
Proton Sheets launched
Date
2025-12-04
Year
2025
Description
Proton expanded its encrypted collaboration portfolio with a spreadsheet application.
Proton Workspace and Proton Meet launched
Date
2026-03-31
Year
2026
Description
Proton introduced its integrated business collaboration suite and an end-to-end encrypted video-meeting service.
Fifth annual Proton VPN no-logs audit published
Date
2026-06-16
Year
2026
Description
Proton VPN published the result of its fifth consecutive annual external no-logs review.

Locations and Geographic Reach

Headquarters
Location Name
Proton AG Headquarters
Address Line 1
Route de la Galaise 32
City
Plan-les-Ouates
State Province
Geneva
Postal Code
1228
Country
Switzerland
Country Code
CH
Registered Office
Location Name
Proton AG Registered Office
Address Line 1
Route de la Galaise 32
City
Plan-les-Ouates
State Province
Geneva
Postal Code
1228
Country
Switzerland
Country Code
CH
Mailing Address
Recipient
Proton AG
Address Line 1
Route de la Galaise 32
City
Plan-les-Ouates
State Province
Geneva
Postal Code
1228
Country
Switzerland
Country Code
CH
Other Locations
Geneva Office
Location Type
Headquarters
Address Line 1
Route de la Galaise 32
City
Plan-les-Ouates
State Province
Geneva
Postal Code
1228
Country
Switzerland
Country Code
CH
Zurich Office
Location Type
Office
City
Zurich
State Province
Zurich
Country
Switzerland
Country Code
CH
Paris Office
Location Type
Office
City
Paris
Country
France
Country Code
FR
London Office
Location Type
Office
City
London
State Province
England
Country
United Kingdom
Country Code
GB
Barcelona Office
Location Type
Office
City
Barcelona
State Province
Catalonia
Country
Spain
Country Code
ES
Skopje Office
Location Type
Office
City
Skopje
Country
North Macedonia
Country Code
MK
Vilnius Office
Location Type
Office
City
Vilnius
Country
Lithuania
Country Code
LT
Prague Office
Location Type
Office
City
Prague
Country
Czechia
Country Code
CZ
Taipei Office
Location Type
Office
City
Taipei
Country
Taiwan
Country Code
TW
Service Areas
Worldwide, subject to applicable law and product-specific availability
Countries of Operation
SwitzerlandFranceUnited KingdomSpainNorth MacedoniaLithuaniaCzechiaTaiwan
Regions of Operation
EuropeAsiaWorldwide digital-services market
Markets
Individual consumersFamiliesSmall and medium businessesEnterprisesPrivacy-conscious organizationsOrganizations requiring encrypted collaboration and cybersecurity services

Corporate Structure and Governance

Organization Relationships
Fondation Proton
Relationship Type
Primary and largest voting shareholder
Start Date
2024-06-17
Status
active
Description
The non-profit Proton Foundation exercises mission-oriented control, can block mission-inconsistent changes of control, supports aligned organizations through grants, and supervises Proton's global activities.
Proton Financial AG
Relationship Type
Wholly owned subsidiary
Status
active
Description
Swiss subsidiary responsible for developing and providing Proton Wallet software under separate terms. It does not present itself as a bank, exchange, payment provider, or asset custodian.
FONGIT
Relationship Type
Reported minority shareholder
Start Date
2021-03-26
Status
active
Description
Proton reported that minority shares divested by CRV were transferred to FONGIT in 2021.
CRV
Relationship Type
Former minority investor
End Date
2021-03-26
Status
ended
Description
CRV completed its divestment from Proton, with its minority shares transferred to FONGIT.
Governance Structure
Proton AG remains a privately held, for-profit Swiss operating company. The non-profit Proton Foundation is its primary and largest voting shareholder and exercises mission-oriented control through share ownership and voting power. The Foundation is designed to protect Proton against hostile or mission-inconsistent changes of control, while Proton AG retains commercial operating responsibility for principal products, subscriptions, employees, and infrastructure.
Ownership Summary
The Proton Foundation is Proton AG's primary and largest voting shareholder. Proton reports no current venture-capital investors. FONGIT received minority shares following CRV's 2021 divestment. Public materials reviewed for the report did not disclose complete ownership percentages.
Owners
Fondation Proton
Owner Type
Primary and largest voting shareholder
As Of Date
2026-08-20
FONGIT
Owner Type
Reported minority shareholder
As Of Date
2026-08-20
Key People
Andy Yen
Title
Founder and Chief Executive Officer
Role Category
Executive leadership
Status
active
Official Profile URL
Bart Butler
Title
Chief Technology Officer
Role Category
Executive leadership
Status
active
Official Profile URL
Raphael Auphan
Title
Chief Operating Officer
Role Category
Executive leadership
Status
active
Official Profile URL
Governing Bodies
Proton AG Board
Body Type
Corporate board
Description
Publicly identified Proton AG board members listed on Proton's team page.
Members
Rosemary LeithAlisee de TonnacAntonio Gambardella
Proton Foundation Board of Trustees
Body Type
Controlling shareholder governance body
Description
Trustee body responsible for the mission-oriented governance of the Proton Foundation, Proton AG's primary and largest voting shareholder.
Members
Dr. Andy YenAntonio GambardellaProf. Carissa VelizSir Tim Berners-LeeDingchao Lu

Financial and Workforce Information

Organization Identifiers
Swiss Enterprise Identification Number
Identifier Value
CHE-354.686.492
Registry Name
Swiss Federal UID Register
Jurisdiction
Switzerland
Workforce
Employee Count
500
Employee Count Display
More than 500 employees representing more than 50 nationalities
As Of Date
2026-08-20
Workforce Description
A distributed international workforce supporting more than 100 million user accounts from offices in Geneva, Zurich, Paris, London, Barcelona, Skopje, Vilnius, Prague, and Taipei.

Official Links and Contact Information

Public Contact Information
Contact Note
Public inquiries and customer-support requests should be submitted through Proton's official support and contact channels.

Recognition and Public Information

Certifications
ISO 27001 Certification
Issued Date
2024-05-02
SOC 2 Type II Attestation
Issuing Body
Schellman
Issued Date
2025-07-22
Fifth Consecutive Annual Proton VPN No-Logs Audit
Issuing Body
Securitum
Issued Date
2026-06-16
Community Impact
Proton provides free and open-source privacy technology, supports organizations working on privacy, freedom, and democracy, and contributes to Proton Foundation public-benefit activities. The Foundation reports more than USD 5 million in grants to aligned organizations.
Notable Facts
Proton reports more than 100 million user accounts.Proton reports more than 500 employees representing more than 50 nationalities.The Proton Foundation is Proton AG's primary and largest voting shareholder.Proton AG remains a privately held, for-profit Swiss operating company.Proton Financial AG is a wholly owned subsidiary responsible for Proton Wallet software.Proton states that it owns and operates core servers and network equipment rather than relying on hyperscale public-cloud providers for its core stack.Core infrastructure is publicly described as operating in Switzerland, Germany, and Norway.Proton primarily uses subscriptions rather than behavioral advertising or the sale of user data.Proton received ISO 27001 certification in May 2024.Proton completed its first SOC 2 Type II attestation in July 2025.Proton VPN published its fifth consecutive annual no-logs audit in June 2026.Proton privacy protections differ by product and should not be interpreted as a universal anonymity guarantee.Proton is privately held and does not publish a complete audited consolidated financial package for public review.

Legal and Regulatory Matters

Legal and Regulatory Matters
Proton appeal upheld by the Swiss Federal Administrative Court
Matter Type
Swiss telecommunications-surveillance classification appeal
Jurisdiction
Switzerland
Date
2021-10-22
Status
Decided in Proton's favor
Description
The court upheld Proton's appeal concerning the treatment of email services under the applicable telecommunications-surveillance framework. The decision reduced certain provider-level retention and monitoring obligations but did not exempt Proton from all valid account-specific Swiss legal orders.
2021 climate-activist account metadata disclosure
Matter Type
Account-specific Swiss legal order
Jurisdiction
Switzerland and France
Date
2021-09-06
Status
Swiss order complied with
Description
Proton stated that a French investigation was routed through Swiss authorities and resulted in a legally binding Swiss order concerning a specific Proton Mail account. Public reporting identified an IP address among the information produced. Proton stated that encrypted message and attachment content could not be decrypted.

Reports and Related Material

Reports and Documents
Comprehensive Report: Proton Brand, Proton Financial AG, and Proton Foundation
Document Type
MND-EXT External Research Report
MNID
MNDE-UH-35-pwBNJ-552-1xhNHlqP
Publication Date
2026-08-20
Publisher
Montero Nava
Description
A source-verified independent report examining the Proton brand, Proton AG, Proton Financial AG, Proton Foundation, products, privacy architecture, legal posture, infrastructure, business model, and governance.
Related Links
Proton About
Link Type
Official company overview
Description
Official explanation of Proton's mission, origins, operating entity, and Foundation relationship.
Meet the Proton Team
Link Type
Official leadership and workforce page
Description
Official information about Proton leadership, workforce scale, offices, and organizational values.
The Proton Foundation
Link Type
Official governance page
Description
Official explanation of the Proton Foundation's mission, controlling shareholder role, trustees, grants, and public-interest purpose.
Proton Trust Center
Link Type
Official security and assurance page
Description
Official source for security controls, certifications, assurance documentation, and compliance support.
Proton Transparency Report
Link Type
Official legal transparency page
Description
Official aggregate reporting concerning legal orders and Proton responses.
Proton System Status
Link Type
Official service-status page
Description
Current availability and incident information for Proton services.
Editorial Notes
Privacy, anonymity, encryption, zero-access storage, no-logs operation, and non-custodial control are related but distinct concepts.Encrypted content may remain inaccessible to Proton while available account, recovery, payment, abuse-prevention, or connection metadata may still be subject to valid Swiss legal process.Proton AG is a for-profit operating company even though the non-profit Proton Foundation exercises controlling mission-oriented influence.Proton Financial AG's name identifies the provider of Wallet software and should not be interpreted as meaning that it is a bank, exchange, payment provider, investment adviser, or asset custodian.Product capabilities, prices, certifications, leadership, service locations, and legal requirements may change after the research cutoff.

Sources

Sources
Comprehensive Report: Proton Brand, Proton Financial AG, and Proton Foundation
Publisher
Montero Nava
Source Type
Independent MND-EXT research report
Published Date
2026-08-20
Accessed Date
2026-08-22
Supports Fields
summarydescriptionorganization_typeownership_typeproductsservicesorganization_relationshipsgovernance_structurefinancial_informationworkforcecertificationslegal_and_regulatory_mattersnotable_facts
Notes
Primary consolidated research source for this directory entry.
Learn about Proton and our vision for a better internet
Publisher
Proton AG
Source Type
Official company overview
Accessed Date
2026-08-22
Supports Fields
purposemission_statementfounded_yearfounding_locationownership_typesummary
Proton is transitioning towards a non-profit structure
Publisher
Proton AG
Source Type
Official governance announcement
Published Date
2024-06-17
Accessed Date
2026-08-20
Supports Fields
organization_relationshipsownersownership_summarygovernance_structuretimeline
The Proton Foundation
Publisher
Proton Foundation
Source Type
Official Foundation governance page
Accessed Date
2026-08-20
Supports Fields
organization_relationshipsownersgoverning_bodiesgovernance_structurecommunity_impact_summary
Meet the team behind Proton
Publisher
Proton AG
Source Type
Official leadership and workforce page
Accessed Date
2026-08-22
Supports Fields
headquarterslocationsworkforcekey_peoplegoverning_bodiescore_values
Swiss UID register entry: Proton AG
Publisher
Swiss Federal Statistical Office
Source Type
Official government registry
Accessed Date
2026-08-20
Supports Fields
legal_namelegal_formoperating_statusregistered_officeorganization_identifiers
Notes
Registry identifier CHE-354.686.492.
Proton Wallet Terms of Use
Publisher
Proton Financial AG
Source Type
Official legal terms
Published Date
2025-09-09
Accessed Date
2026-08-22
Supports Fields
productsorganization_relationshipsbusiness_segmentseditorial_notes
Notes
Identifies Proton Financial AG as a wholly owned Proton AG subsidiary and defines Proton Wallet as non-custodial software.
Introducing Proton Workspace
Publisher
Proton AG
Source Type
Official product announcement
Published Date
2026-03-31
Accessed Date
2026-08-20
Supports Fields
servicesbusiness_segmentstimeline
Proton for Business plans explained
Publisher
Proton Support
Source Type
Official business product documentation
Accessed Date
2026-08-20
Supports Fields
servicesbusiness_segmentscustomer_types
Proton Trust Center
Publisher
Proton AG
Source Type
Official security and assurance documentation
Accessed Date
2026-08-20
Supports Fields
certificationsprograms_and_initiativesnotable_facts
Proton completes SOC 2 Type II audit
Publisher
Proton AG
Source Type
Official assurance announcement
Published Date
2025-07-22
Accessed Date
2026-08-20
Supports Fields
certificationstimeline
Proton VPN passes fifth annual external no-logs audit
Publisher
Proton VPN
Source Type
Official audit announcement
Published Date
2026-06-16
Accessed Date
2026-08-20
Supports Fields
productscertificationstimelinenotable_facts
Proton Terms of Service
Publisher
Proton AG
Source Type
Official legal terms
Published Date
2026-06-23
Accessed Date
2026-08-20
Supports Fields
legal_and_regulatory_mattersofficial_linkseditorial_notes
Proton Transparency Report
Publisher
Proton AG
Source Type
Official legal transparency report
Published Date
2026-01-06
Accessed Date
2026-08-20
Supports Fields
legal_and_regulatory_matterseditorial_notesnotable_facts
Secure email group Proton wins Swiss appeal over surveillance rules
Publisher
Reuters
Source Type
Independent journalism
Published Date
2021-10-22
Accessed Date
2026-08-20
Supports Fields
legal_and_regulatory_matterstimeline
Important clarifications regarding arrest of climate activist
Publisher
Proton AG
Source Type
Official legal clarification
Published Date
2021-09-06
Accessed Date
2026-08-20
Supports Fields
legal_and_regulatory_matterseditorial_notes
ProtonMail logged IP address of French activist after Swiss order
Publisher
TechCrunch
Source Type
Independent journalism
Published Date
2021-09-06
Accessed Date
2026-08-20
Supports Fields
legal_and_regulatory_matterseditorial_notes
Sustaining Proton's mission over time
Publisher
Proton AG
Source Type
Official business-model publication
Published Date
2024-02-15
Accessed Date
2026-08-20
Supports Fields
business_modelsownership_summaryprograms_and_initiatives
CRV divestment and other company updates
Publisher
Proton AG
Source Type
Official ownership announcement
Published Date
2021-03-26
Accessed Date
2026-08-20
Supports Fields
organization_relationshipsownersownership_summarytimeline
Proton Mail reliability and 99.95% SLA
Publisher
Proton AG
Source Type
Official infrastructure and service documentation
Published Date
2024-12-01
Accessed Date
2026-08-20
Supports Fields
descriptionnotable_facts
Notes
Publication date recorded at month level in the source report; day set to the first for directory date-format consistency.
Proton Drive Privacy Policy
Publisher
Proton AG
Source Type
Official privacy policy
Accessed Date
2026-08-20
Supports Fields
productsdescriptionnotable_facts
Proton does not trust Switzerland to host its AI servers
Publisher
SWI swissinfo.ch
Source Type
Independent journalism
Published Date
2025-07-24
Accessed Date
2026-08-20
Supports Fields
productslocationsnotable_facts
Proton Mail now in Public Beta
Publisher
Proton AG
Source Type
Official historical product announcement
Published Date
2014-05-16
Accessed Date
2026-08-20
Supports Fields
founded_yearhistory_summarytimeline
Introducing Proton Sheets
Publisher
Proton AG
Source Type
Official product announcement
Published Date
2025-12-04
Accessed Date
2026-08-20
Supports Fields
productstimeline
Introducing Lumo
Publisher
Proton AG
Source Type
Official product announcement
Published Date
2025-07-23
Accessed Date
2026-08-20
Supports Fields
productsbrandstimeline
Lumo Privacy
Publisher
Proton Support
Source Type
Official product privacy documentation
Accessed Date
2026-08-20
Supports Fields
productseditorial_notes
Introducing Proton Authenticator
Publisher
Proton AG
Source Type
Official product announcement
Published Date
2025-07-31
Accessed Date
2026-08-20
Supports Fields
productstimeline
Introducing Proton Meet
Publisher
Proton AG
Source Type
Official product announcement
Published Date
2026-03-31
Accessed Date
2026-08-20
Supports Fields
productsservicestimeline

Independent Informational Hosting Notice

This site is an independent informational hosting page provided for general research, reference, and organizational browsing purposes. Montero Nava makes a good-faith effort to keep published information reasonably useful and current, but organization details may change and may not always be immediately reflected here.

Visitors should confirm important information with the organization’s official website, filings, public records, or other authoritative sources before relying on it. Inclusion in this directory does not establish endorsement, sponsorship, authorization, partnership, ownership, or direct affiliation.

This site is intended to align with Montero Nava independent informational hosting principles under Policy Code 6150 and Policy Code 6151.