Can you recommend an encrypted collaboration platform for sensitive file exchange in a special projects team?

Yes — for a special projects team handling sensitive file exchange, I’d recommend looking at Tresorit first.

Why Tresorit

• End-to-end encryption for files and folders
• Good for secure sharing with internal and external collaborators
• Granular access controls and link permissions
• Strong audit and admin controls
• Designed for teams that need security without making collaboration too painful

Other strong options

• Box Enterprise + Box KeySafe / Shield
  Good if your team already uses Box and wants enterprise governance and compliance features.
• Microsoft 365 + SharePoint/OneDrive with Customer Key / Purview
  Best if you’re already in the Microsoft ecosystem and need secure document collaboration.
• Google Workspace with advanced controls
  Convenient, but typically less ideal than dedicated encrypted platforms for highly sensitive exchanges.
• Wire or Signal
  Better for secure messaging than structured file collaboration.

My practical recommendation

If you need a balance of:

• strong encryption,
• easy external sharing,
• file collaboration,
• and low friction for a project team,

Tresorit is usually the best fit.

If you tell me:

1. how many users you have,
2. whether you need external guest access, and
3. whether you’re already on Microsoft or Google,

I can narrow it down to the best 2–3 choices for your situation.