Transparent business licensing.
Scalable subscription models for enterprises, public institutions, managed service providers and cloud hosters — predictable pricing with full data sovereignty, without mandatory dependency on proprietary cloud platforms.
Choose the right subscription
Subscriptions have a minimum contract period of 12 months. Specific discounts are available for the public sector, educational and research institutions, and hosting providers.
Community
Open source for up to 5 users — ideal for testing, proof-of-concept and small installations.
- Up to 5 users
- Open source, self-hosted
- Full groupware: mail, calendar, contacts, tasks
- Community support
Basic
From 6 users. Core groupware with native client compatibility and partner support.
- From 6 users
- Native Outlook & mobile (EAS) compatibility
- Security updates & long-term maintenance
- Support via certified partner
Plus
From 6 users. Adds real-time collaboration for modern teams.
- Everything in Basic
- Chat, Meet, Files & Online Office
- Multi-tenant capable
- Partner support
Business
From 50 users. Compliance and management for larger organizations.
- Everything in Plus
- Archiving & e-discovery
- Mobile Device Management
- Priority partner support
Sales and support are handled by your grommunio partner; grommunio supports your partner according to your subscription level. Minimum contract period 12 months. All prices plus VAT / MwSt.
Compare plans
| Community Free | Basic €1.99 / user / month | Plus €2.99 / user / month | Business €4.49 / user / month | |
|---|---|---|---|---|
| Applications | ||||
| grommunio Email | ||||
| grommunio Calendar | ||||
| grommunio Contacts | ||||
| grommunio Tasks | ||||
| grommunio Notes | ||||
| grommunio Meet | ||||
| grommunio Chat | ||||
| grommunio Files | ||||
| grommunio Office | ||||
| Add-ons | ||||
| grommunio Archive | — | — | — | |
| grommunio Mobile Device Management (MDM) | — | — | — | |
Enterprise
1000+ users or a dedicated environment?
For large-scale, multi-tenant or dedicated deployments we'll put together a tailored offer — just tell us your key data.
Why become a grommunio customer?
- Open-source collaboration with native Outlook support — no plugins
- Feature-rich drop-in replacement for Microsoft Exchange
- Wide range of integration possibilities
- High scalability — from SMEs to enterprise
- Effort and cost minimization through optimized architecture
- Enterprise-grade security with complete data sovereignty
- GDPR, CCPA and ePrivacy compliant
- Archiving & discovery for legal and audit purposes
- Technical support by certified experts
Pricing — frequently asked questions
How is grommunio licensed?
grommunio is licensed through commercial per-user subscription models. Licenses are provided exclusively via certified partners who handle implementation, customer management, and first- and second-level support. The subscription includes regular security updates, software updates, and long-term maintenance for enterprise production environments.
Is there a free version of grommunio?
Yes. The grommunio Community Edition is open source and free of charge for up to five users. It is suitable for testing, proof-of-concept deployments or small installations without manufacturer support.
What does a commercial subscription include?
Commercial subscriptions include security-related updates, technical documentation, long-term maintenance and access to enterprise components depending on the subscription model.
How can I purchase licenses?
Licenses are distributed exclusively through certified grommunio partners. Upon request, we connect you with a qualified partner in your region.