Secure and private cloud storage for business
Collaborate confidentiality
Manage files from anywhere
Store files of any size or format
Simplify security compliance
Prevent unauthorized access

Built to defend your most important data
Unlike most business cloud storage providers, Proton Drive uses end-to-end encryption to protect your data from unauthorized access. Not even Proton can see your files.

Collaborate in confidence
Work with internal and external stakeholders on everything from sensitive contracts to financial reports securely and privately, even if they don’t have a Proton account.
Share files securely
Share files of any size via email or sharing link. Stay in control by setting access permissions, passwords, and expiration dates, and easily monitor or revoke access anytime.
Store any file size or format
Protect all of your organization’s confidential data, from .PDF contracts to .CSV financial reports and .CAD design files, without worrying about error messages or compatibility issues.
Work on files offline
Let employees sync cloud-stored files to their desktops and continue working offline. Changes automatically sync once they're reconnected.
Access from any device
Whether employees are in the office, at home, or in the field, Proton’s cloud storage for business makes it easy to upload, access, and edit files across desktop, browser, and mobile.
Recover previous versions
Proton Drive stores previous versions of your files dating back 10 years, so your team can review and restore earlier versions with just a few clicks.
Keep files in sync
Perfect for distributed teams and fast-moving projects, Proton Drive automatically syncs changes across users and devices in real-time.
Set access controls
With robust group-based access controls, you can maintain tight control over who sees what, simplifying audits and internal governance.
Encrypted cloud storage that supports your business needs
Do more with built-in productivity tools
Alongside business cloud storage and sharing, Proton Drive also includes end-to-end encrypted online document editor and spreadsheet software, Proton Docs and Proton Sheets.

Meet the global standard for information security
Proton Drive is ISO 27001 certified and aligned with SOC 2 Type II, HIPAA, CCPA, and GDPR requirements, helping to simplify compliance and strengthen trust amongst clients.

Get set up in minutes. No IT knowledge necessary
Get your team up and running in just a few steps. If you need support, your dedicated success manager can assist with everything from file organization to regulatory compliance.

Adapt storage space to grow with your needs
Whether you’re a startup scaling fast or an established business managing large datasets, you can choose from flexible plans, with up to 1 TB per user and custom solutions for enterprises.

Business cloud storage you can trust
Proton Drive is an alternative Google Drive and Microsoft OneDrive that never holds the keys to your data.
| | Proton Drive | Google Drive | Microsoft OneDrive | Dropbox |
|---|---|---|---|---|
| End-to-end encrypted by default | Da | Nu | Nu | Nu |
| Can’t access or mine your data | Da | Nu | Nu | Nu |
| Fully open-source | Da | Nu | Nu | Nu |
| Outside of US-jurisdiction | Da | Nu | Nu | Nu |
| Ad-free business model | Da | Nu | Nu | Nu |
| Doesn't answer to investors | Da | Nu | Nu | Nu |
Eliminate weak links in business cloud storage
Join over 50,000 organizations using Proton to secure their business and protect critical data from breaches, ransomware, and surveillance.

Frequently asked questions
- What is cloud storage for business?
- Which cloud storage is best for small businesses?
- How does end-to-end encryption support business cloud storage?
- Why should I choose an E2EE solution for business document storage?