Digital sovereignty · Made in Germany
The German cloud workspace,
that delivers.
Forget undeliverable email, drained smartphone batteries and data privacy risks from US providers. Souvera combines email, online office, files and video conferencing in one seamless platform. Operated in Germany, with your own exclusive mail server and secure, local AI.
- GDPR-compliant, no third-country transfer
- Dedicated mail server per workspace
- Hosted exclusively in Germany
- One login for all applications
Souvera Shield
0 threats · inbox protected
One platform
Everything modern work needs
Souvera Workspace unites the tools of everyday work in one interface: no isolated solutions, no data silos, no second logins.
Guaranteed mail deliverability & real-time sync. Emails arrive on your smartphone as fast as a chat: extremely battery-friendly thanks to the JMAP standard. And thanks to your own dedicated mail server, your emails never end up in your customers' spam folders.
Files
Secure cloud storage without spying. Share proposals and contracts via highly secure share links. All data is stored encrypted in German data centers: protected from the US CLOUD Act.
Desk
Real-time office that understands Microsoft. Write concepts and calculate spreadsheets directly in the browser together with your team. 100 % compatible with Word, Excel and PowerPoint files.
Link
Video conferencing without installation. Launch secured meetings and team chats directly from your workspace. GDPR-compliant, crystal clear and without the security risks of foreign video tools.
Calendar & Contacts
Shared calendars, scheduling and central address books: synchronized across all devices.
Unified Search
Find everything with one click. Stop searching across five different programs. Our intelligent search finds emails, file contents, appointments and contacts simultaneously in milliseconds.
OpenBackup
Daily full backup to FTP, FTPS, S3, WebDAV or SFTP: real files with your folder names, every email as .eml, including configuration and database dump. No lock-in.
Seamlessly integrated
Not a toolbox. One whole.
At Souvera, email is not a bolted-on extra: it is part of the core. All modules interlock, and you feel it with every click.
One login for everything
Sign in once: mail, files, office and conferences are instantly available. Single sign-on is the standard, not an add-on.
Email as part of the whole
Attachments go straight into file storage, meeting invitations into the calendar with one click, recipients come from the central address book.
Everything findable
The unified search finds emails, files and appointments at the same time: without switching between applications.
A mailbox that moves with you
The integrated mail importer fetches your old emails from your previous provider: migration without data loss and without downtime.
The three Souvera apps
Three apps. One signature.
Souvera extends the workspace with three deeply integrated applications: for administration, communication and security.
Souvera Central
The central control hub for administrators: users, mailboxes, groups, licenses and settings: all in one place, delegable and without a command line.
Souvera Mail
The full-featured mail client inside the workspace: a personal mailbox per user, seamless single sign-on, migration import wizard and shared team mailboxes.
Souvera Shield
Mail security in the user's hands: personal spam quarantine and lists: plus professional reputation management with score, per-provider analysis, deliverability checks, incidents and mail tests for administrators.
See for yourself: we'll show you Central, Mail and Shield in a personal live demo.
Architecture
Strictly separated. Consistently sovereign.
Souvera is not a shared multi-tenant cloud. Every workspace is its own, fully isolated environment: all the way down to the mail server.
A dedicated mail server per workspace
Every Souvera instance gets its own dedicated mail server. No shared mailbox systems, no neighborhood effects from other customers.
Complete data separation
Users, mailboxes, files and configuration are strictly isolated per customer: technically enforced, not just organizationally promised.
Hosting in Germany
Operated exclusively in German data centers, under German and European law. Your data stays here.
Workspace · Customer A
Workspace · Customer B
No shared infrastructure between customers
Secure German AI: Your intelligent assistant that protects company secrets
Artificial intelligence is the lever for productive work: but ChatGPT and Microsoft Copilot use your data for training on US servers. Souvera AI offers a full-fledged language assistant operated entirely locally in your workspace in Germany. Your data never leaves your protected cloud.
Souvera AI is under development and will be made available to existing workspaces as an extension.
The AI that knows your files
Thanks to modern integration (Model Context Protocol), our assistant is securely connected to your workspace documents and emails. It can summarize proposals, draft email replies or review contracts: precise, tailored and absolutely private.
Security that does not blind you
Unlike rigid encryption solutions that block all server intelligence, Souvera combines uncompromising data privacy with intelligent automation. Work smart and absolutely GDPR-compliant.
Why Souvera
Working sovereign, in Germany
Versatile
Effortlessly adapt your digital work environment to your requirements. Whether in the office, on the road or working from home: work the way that suits you best.
Independent
Keep full control of your data, processes and ways of working: without depending on international cloud corporations or foreign jurisdictions.
Risk-free
Souvera reliably protects your sensitive company data from unauthorized access and data loss: according to the highest German security standards.
Reliable
Stability, security and maximum availability: your work environment runs dependably: and your data is in the best hands.
Topics & Comparisons
Understanding sovereignty – our guides
Deepen your knowledge of digital sovereignty, cloud security and Microsoft alternatives.
The fine difference
Souvera in a direct comparison
No marketing fluff: here is how Souvera performs in a direct comparison: point by point, with facts instead of promises.
Microsoft 365 & Google Workspace
Data location exclusively in Germany
Independent of the US CLOUD Act
GDPR-compliant without third-country transfer
Dedicated mail server per workspace
AI assistant operated locally: data never leaves the workspace
One login for mail, office, files & conferencing
Personal support from Germany
Transparent price per user
Free callback · around the clock
Got questions? We'll call you back for free.
Our AI assistant will call you within minutes, answer all your questions about Souvera: and book a personal consultation appointment for you on request.
FAQ
Frequently asked questions
What is Souvera Workspace?
Souvera Workspace is a complete digital workplace from Germany: email, file storage, online office, chat and video conferencing in one interface: operated GDPR-compliant in German data centers, as the sovereign alternative to Microsoft 365.
How is Souvera different from Microsoft 365 or Google Workspace?
The decisive difference is sovereignty: your data resides exclusively in Germany, is subject to German law and is not exposed to the US CLOUD Act. In addition, every workspace gets its own dedicated mail server: a strict separation that the big US providers do not offer.
How does migration from my current provider work?
Very simply: the integrated import wizard in Souvera Mail fetches your existing emails directly from your old provider via IMAP: including all folders. The import runs in the background, and your old provider's credentials are discarded immediately after the start.
What does "a dedicated mail server per workspace" mean?
Every Souvera instance receives its own dedicated mail server: no mailbox system shared with other customers. This increases security and deliverability and ensures that your mail infrastructure belongs to you alone.
Who is Souvera suitable for?
For companies of any size, law firms, associations, educational institutions and public bodies: wherever data protection and independence matter. Souvera scales from a single user to large organizations.
Can I use Souvera with Outlook, Thunderbird or Apple Mail?
Yes. Using combined app passwords you can connect any common client via IMAP/SMTP: including calendar and contacts (CalDAV/CardDAV). One app password covers all services.
What is JMAP and why does Souvera use it?
JMAP (RFC 8620) is the modern email standard by the Internet Engineering Task Force: developed as the successor to IMAP and SMTP. Souvera Mail and the Android app talk to the server via a single, encrypted protocol for fetching, sending, search and push: mailboxes sync in milliseconds, only changes are transferred (saving data and battery), full-text search runs server-side across your entire mailbox, and passwords are never transmitted in plain text. External programs such as Outlook or Thunderbird remain connected via app passwords using IMAP/SMTP as usual.
Ready for digital sovereignty?
Get a non-binding consultation or start right away with your own Souvera Workspace.