Sovereign Workspaces.
Your Files, Mail and Meetings, in Your Jurisdiction.
A fully managed, single-tenant digital workspace built on Nextcloud Hub Enterprise, delivered by MassiveGRID as a complete replacement or a complement to Microsoft 365 and Google Workspace. Files, office documents, calendar, contacts, mail, video meetings and workflow automation, hosted in the country you choose, including your own datacenter.
One Workspace, One Tenant, One Jurisdiction
Sovereign Workspaces is a managed Nextcloud Hub Enterprise deployment. Each customer receives a dedicated, isolated instance with no shared infrastructure and no cross-tenant data paths, operated end to end by MassiveGRID: provisioning, patching, upgrades, monitoring, backup and 24/7 NOC and SOC. Enterprise support is backed by Nextcloud GmbH through our Platinum partnership.
Files and Office
Nextcloud Files with versioning, group folders, guest accounts and access control, plus Nextcloud Office for collaborative documents, spreadsheets and presentations in the browser.
Mail, Calendar and Contacts
Nextcloud Mail, Calendar and Contacts connected to a sovereign groupware backend, with mobile sync so Outlook, phones and tablets keep working after the switch.
Video Meetings with Talk
Nextcloud Talk for chat, calls and video meetings with screen sharing, recording and SIP dial-in, hosted on the same instance, so meeting content never leaves your jurisdiction.
Workflow Automation
Nextcloud Flow, Forms, Tables, Approval and Deck replace the small automations, form tools and task boards that usually live in scattered SaaS subscriptions.
Built for Government, Energy and Regulated Enterprises
Organizations that need control over where their data lives and who can access it.
- Data stays in the country or region of choice, with no dependency on US hyperscaler regions
- Single-tenant isolation: no shared infrastructure, no cross-tenant data paths
- No forced AI processing of your content; optional Nextcloud Assistant runs on-premises or in-region on local models
- Open-source platform: full data and application portability, no vendor lock-in
- EU contracting through the MassiveGRID Greek entity when EU jurisdiction is required, alongside our US and UK entities
- Predictable pricing with no annual per-seat increases tied to a hyperscaler roadmap
- Typically materially lower total cost than Microsoft 365 E3 and E5 enterprise tiers, confirmed per case after discovery
- Fully managed: provisioning, patching, upgrades, monitoring, backup and 24/7 NOC and SOC by MassiveGRID
- Enterprise support backed by Nextcloud GmbH through our Platinum partnership
- ISO 27001 and ISO 9001 certified operations, GDPR compliant, aligned with NIS2 and DORA requirements
Hosted by Us, Hosted by You, or Both
Any Jurisdiction from 700+ Datacenters
Your dedicated instance runs on MassiveGRID high-availability infrastructure in the country your regulator or policy requires, chosen from 700+ carrier-neutral datacenters across six continents, with customers served in 208 countries and territories. Backups stay in-region unless you decide otherwise.
Data Never Leaves the Country
MassiveGRID deploys and operates the platform on your infrastructure or a partner's, so data never crosses a border. Ideal for national ISPs, telcos, sovereign cloud providers and ministries with their own facilities. The underlying Proxmox and Ceph platform is licence-free and can be handed over to your team.
Primary In-Country, Encrypted DR Abroad
Production in-country with an encrypted disaster-recovery replica in a second MassiveGRID region, managed and tested by MassiveGRID. Keys stay with you, so the replica is unreadable outside your control.
Every Microsoft 365 Component Has an Open-Source Counterpart
Enterprise mail, identity and security monitoring, all open source, all integrated with Nextcloud and operated as one managed service.
| Microsoft 365 or Google Workspace | Sovereign Workspaces | What it gives you |
|---|---|---|
| SharePoint, OneDrive, Google Drive | Nextcloud Files | Versioning, group folders, external sharing with expiry, file access control |
| Office 365, Google Docs | Nextcloud Office | Collaborative documents, spreadsheets and presentations; Microsoft formats supported |
| Exchange Online, Gmail | Stalwart or Mailcow | Enterprise mail with calendar, contacts, mobile sync and a compliance archive |
| Teams, Google Meet | Nextcloud Talk | Chat, video meetings, recording, breakout rooms and SIP dial-in |
| Entra ID (Azure AD), Google Identity | Keycloak or Authentik | Single sign-on, MFA, federation with existing directories and national eIDs |
| Defender, Sentinel, Purview | Wazuh with MassiveGRID SOC | Endpoint and server security monitoring, log analysis, 24/7 SOC response |
| Power Automate, Forms, Planner | Flow, Forms, Tables, Deck | Workflow automation, online forms, registers and task boards inside Nextcloud |
| Copilot, Gemini | Nextcloud Assistant on local models | Summaries, drafting, translation and transcription on hardware you control |
Compare in depth: Nextcloud vs Microsoft 365, Talk vs Teams vs Meet and Nextcloud Assistant vs Copilot and Gemini.
From Discovery Call to Daily Operations
A short call to confirm user count, hosting location, storage volumes and compliance requirements, followed by a written proposal in your local currency.
A dedicated instance for one department, connected to your identity provider, so IT and a pilot group validate sign-on, sharing and meetings before the migration is scheduled.
Mailboxes, calendars, shared drives and permissions move from Microsoft 365 or Google Workspace in waves, with the old tenant kept read-only until every wave is verified.
User onboarding material, administrator training and a documented support path for the first 90 days, when most questions arrive.
MassiveGRID runs the platform under a 100% uptime SLA with L2 and L3 support; your IT team or your partner keeps local first-line support and owns the relationship with users.
A Nextcloud Platinum Partner That Runs Its Own Cloud
Official Nextcloud Platinum Partner
Enterprise licensing, architecture guidance and escalation to Nextcloud GmbH engineers come with the service. See our Nextcloud support services and managed Nextcloud hosting plans.
High-Availability Cloud Since 2003
Every instance runs on the two-layer HA architecture that has carried our own cloud for over two decades, with Ceph triple-replicated storage and automatic failover.
Certified, Audited Operations
ISO 27001 and ISO 9001 certified, GDPR compliant, with 24/7 SOC monitoring available on every deployment model. Read how we define digital sovereignty across hardware, software and operations.
Three Legal Entities, One Contract
Contract with our US, UK or EU (Greece) entity depending on the jurisdiction you need, and deploy from 100 users to national scale under the same service description.
Resell Sovereign Workspaces Under Your Own Brand
Telcos, national ISPs, sovereign cloud providers and system integrators resell Sovereign Workspaces under their own brand. MassiveGRID handles licensing, architecture, migration from Microsoft 365 or Google Workspace, user onboarding and ongoing L2 and L3 support. The partner owns the customer relationship and local L1. Suitable from 100 users to national-scale deployments.
- Deploy in the partner's datacenter or a MassiveGRID region
- Partner branding on the workspace and invoices
- Written proposals in the customer's local currency
- Migration and onboarding delivered by MassiveGRID
- Same platform scales to a full digital government suite
Sovereign Workspaces Questions
Where to Go Next
Start with a Discovery Call
Twenty minutes to confirm user count, hosting location, storage volumes and compliance requirements. You receive a written proposal in your local currency.