Sovereign digital workplace
Secure collaboration with full control over data and infrastructure
Carbonio unifies email, calendar, chat, files, meetings, and admin
in one private digital workplace.

Why Zextras
Zextras makes sovereign collaboration a reality
Built on the belief that data belongs to people, Zextras empowers organizations to collaborate securely, independently, and on their own terms.
years of experience on building sovereign digital workplace platforms
users worldwide trust Zextras with their digital workplace solutions
data sovereignty enabled by Carbonio through your infrastructure and jurisdiction
capabilities in one platform — email, calendar, files, docs, chat, meetings
Why Carbonio
Built for secure everyday collaboration
A look inside the user workspace and the admin panel — same platform, two sides of the same story.
End-user workspace

Mail with shared folders, tags, and inline invites

Shared calendars, resources, and meeting rooms

Chat, calls, and video — same workspace

Files and docs, co-edited in real time
Admin & IT

Accounts, domains, and Class of Service

HSM with primary, secondary, and indexer volumes

Antispam, antivirus, and gateway security

Legal hold, retention, and audit
Why enterprises trust Carbonio
Built for organizations where control actually matters
The usability teams expect, with the control IT needs: private deployment, enterprise-grade admin, open architecture, and a clear exit from lock-in.
Integrated collaboration suite
One platform for email, calendar, chat, files, meetings, and collaborative documents.
Infrastructure control
Choose the deployment model that fits your legal, security, and operational needs — not a public-cloud default.
Enterprise administration
Multi-tenancy, RBAC, backup and restore, storage policies, and full auditability.
Freedom from lock-in
Open standards and open-core keep your stack interoperable, extensible, and independent.
Industries
Designed for high-compliance industries
A good fit for sectors where data sovereignty, regulatory alignment, operational flexibility, and trusted delivery matters.
Public Sector
Digital sovereignty and jurisdiction-aware deployment.
Healthcare
Stronger control over sensitive communication and data handling.
Financial Services
Auditable sovereignty for banks under DORA and EU financial regulators.
Education
One collaboration environment for staff and students, simpler at scale.
Achieve digital sovereignty
A digital workplace that enables digital sovereignty
Collaborate, communicate, and work efficiently in a digital environment designed to protect your data and preserve your independence.


For partners
Sell a private collaboration platform with real service revenue
- Build recurring revenue around migration, deployment, support, and managed services.
- Access enablement, certifications, and technical guidance.
- Compete with hyperscalers using sovereignty and control as your edge.
- Grow under your own brand with white-label and multi-tenant services.
For organizations
Buy with local accountability and vendor-backed expertise
- Work with a partner who knows your country, sector, and compliance context.
- One delivery relationship for migration, deployment, support, and managed services.
- Choose the right hosting model — not someone else's default.
- Escalate with confidence through a partner certified by Zextras.
Evaluate Carbonio
Everything you need to decide
Product detail, migration scenarios, comparisons, and partner-led buying paths.
Inside the Carbonio platform
Email, files, meetings, and administration
unified in one private digital workplace
Whether you're evaluating, deploying, or scaling Carbonio, the starting point is the same: an end-to-end view of the platform and its architecture.