Work together without the exposure
Workspaces for projects and teams, with encrypted messaging, calls, polls and document sharing — built for firms that cannot afford leaks.
Access that follows roles and projects, not a global inbox
Workspaces for teams inside a regulated firm: messaging, voice and video calls, polls and document sharing — all end-to-end encrypted and hosted in Switzerland. Each Workspace carries its own members and permissions, so work stays with the people it belongs to.
Why secure internal work belongs in Letro
See all features →Workspaces that mirror how you work
Create a Workspace per project, team or client group. Conversations, files and calls stay inside it.
Calls inside the channel
Voice and video calls run inside the Workspace, so a discussion and its record live in the same place.
Access that follows roles
Permissions are set per Workspace. When someone leaves or changes role, their access changes with them.
No more risky attachments
Share documents inside the encrypted Workspace instead of email attachments and consumer file-sharing tools.
Your own server, your own perimeter
Run internal collaboration on Letro’s Swiss cloud, on a dedicated instance, or fully air-gapped inside your network. Dedicated instances federate over the Matrix protocol with the servers you approve, so your offices and partner firms can still reach each other.
Discuss your deployment model
Standard rollout, private infrastructure, or stricter residency and isolation — Letro gives you a verified, evidential foundation.