Simple, Transparent Pricing
One Suite. One Price.
One Suite. One Price.
No Surprises.
Every plan includes EU data residency, GDPR compliance, and zero exposure to US surveillance laws. Pick the tier that fits your organization.
Monthly Annual Save 20%
Starter
For small teams getting started with sovereign productivity.
€8 /user/month
Billed annually
- Up to 50 users
- 50GB mailbox per user
- Basic collaboration (docs, sheets)
- Standard support (email)
- EU data residency
Most Popular
Business
For growing organizations that need the full sovereign suite.
€16 /user/month
Billed annually
- Unlimited users
- 100GB mailbox per user
- Full collaboration suite
- Video conferencing (250 participants)
- Endpoint management (basic)
- Priority support
- SSO/MFA included
Enterprise
For large organizations with strict sovereignty and compliance needs.
Custom
Tailored to your requirements
- Everything in Business
- Customer-managed encryption keys
- Advanced endpoint management
- Dedicated account manager
- Custom SLA (up to 99.99%)
- On-premise deployment option
- Sovereignty audit reports
Compare Plans in Detail
A full breakdown of what's included in each tier so you can make the right choice for your organization.
| Feature | Starter | Business | Enterprise |
|---|---|---|---|
| Email & Calendar | |||
| Mailbox storage | 50GB | 100GB | Unlimited |
| Custom domain email | |||
| Shared calendars | |||
| Collaboration | |||
| Documents & Spreadsheets | Basic | Full suite | Full suite |
| Presentations | |||
| Real-time co-editing | |||
| Video conferencing | 250 participants | 500 participants | |
| Cloud file storage | 100GB pooled | 1TB per user | Unlimited |
| Security & Compliance | |||
| EU data residency | |||
| SSO / MFA | MFA only | ||
| Customer-managed encryption keys | |||
| Sovereignty audit reports | |||
| Management & Support | |||
| Endpoint management | Basic | Advanced | |
| Support level | Priority | Dedicated manager | |
| SLA | 99.9% | 99.95% | Up to 99.99% |
| On-premise deployment | |||
FAQ
Frequently Asked Questions
Everything you need to know about UnionStack pricing and plans.
Ready to Take Back Control of Your Data?
Join hundreds of European enterprises that have already made the switch. Get a personalized demo and see how UnionStack can replace Microsoft 365 — with true sovereignty.