Team Chat Platform Self-Hosted: Mattermost for Enterprise Teams
An open-source chat platform built for privacy-conscious enterprises. Own your data. GDPR compliant. Unlimited message history. 87% cheaper than Slack for a team of 10. Deploy in minutes.
Why Choose Managed Mattermost
The self-hosted chat platform that saves money, keeps your data, and integrates with everything you use.
€9/mo Flat Rate (vs €150/mo Slack Business+)
A 10-person team on Slack Business+ costs €150/mo. On Opsily's managed Mattermost, the same team costs €9/mo flat. That is €1,692 in annual savings. Slack charges per user. Mattermost does not.
Full Data Control and GDPR Compliance
Your data stays in the region you choose. Opsily offers 21 data centers across EU, US, and Asia-Pacific. No forced updates. Configurable retention. Legal hold support. No vendor lock-in.
300+ Integrations, Including Jira and GitHub
Native support for Jira, GitHub, GitLab, Jenkins, PagerDuty, Zoom, and Slack. Incoming and outgoing webhooks. Slash commands. REST API for custom bots and workflows.
Built for teams who need reliability
Teams Are Moving Away From Slack
Slack Free plan deletes messages after 90 days. Pro tier costs €6.75/user/month. Business+ costs €15/user/month. A 10-person team on Business+ spends €1,800 per year. Your messages, workflows, and integrations belong to Slack. You cannot migrate channels easily. You cannot control where data lives.
Mattermost: Data, Cost, and Control
Mattermost is an open-source, self-hosted team chat platform for enterprises that refuse vendor lock-in. It runs on your infrastructure or via a managed host. Every message is yours. Every integration is yours. You choose when to update. You choose where data lives.
On Opsily's managed hosting, a team of 10 pays €9/mo flat. No per-user fee. No annual commitment. Unlimited users (Team Edition soft-caps at 250; upgrade to Mattermost Enterprise scales to 50K+ concurrent). Backups, monitoring, SSL, 24/7 support, and 99.9% SLA all included.
For organizations that cannot afford Slack's per-user model or refuse to let data live in Slack's US infrastructure, Mattermost is the answer.
Mattermost vs Slack: Total Cost of Ownership
Annual spend for a team of 10 users, billed annually.
Slack pricing via slack.com (2026 annual billing). Mattermost: Opsily managed hosting, flat rate, unlimited users (Team Edition soft-cap 250).
Everything Included in Managed Mattermost
No tiers. No feature gates. Opsily's €9/mo managed Mattermost includes all core features.
Deploy Mattermost in Minutes
Three steps to a self-hosted chat platform.
Sign up at Opsily. Select your data center (EU, US, or Asia-Pacific). No credit card required. 7-day free trial included.
Click 'Install Mattermost' in the Opsily dashboard. Your instance is live in under 1 minute. SSL, backups, and monitoring auto-configured.
Add users by email. Connect Jira, GitHub, Slack webhooks, or custom bots. Import message history from Slack if migrating.
Sign up at Opsily. Select your data center (EU, US, or Asia-Pacific). No credit card required. 7-day free trial included.
Click 'Install Mattermost' in the Opsily dashboard. Your instance is live in under 1 minute. SSL, backups, and monitoring auto-configured.
Add users by email. Connect Jira, GitHub, Slack webhooks, or custom bots. Import message history from Slack if migrating.
Create Account and Choose Region
Sign up at Opsily. Select your data center (EU, US, or Asia-Pacific). No credit card required. 7-day free trial included.
Deploy (1 Click)
Click 'Install Mattermost' in the Opsily dashboard. Your instance is live in under 1 minute. SSL, backups, and monitoring auto-configured.
Invite Team and Integrate
Add users by email. Connect Jira, GitHub, Slack webhooks, or custom bots. Import message history from Slack if migrating.
Scale Without Limits
Team Edition handles 250 users. For larger deployments (Uber runs 70K concurrent connections), upgrade to Mattermost Enterprise.
Enterprise-Grade Trust and Security
Built for organizations that require compliance, data ownership, and transparency.
GDPR Compliant
Full data residency control. Choose from 21 regions. Legal hold, compliance exports, and configurable retention included.
99.9% Uptime SLA
Opsily guarantees 99.9% availability. 24/7 monitoring, automated failover, and redundant infrastructure.
Open Source and Auditable
39K GitHub stars, 23K+ commits, MIT licensed. Full source code transparency. No black-box algorithms.
21 Data Centers Worldwide
Deploy in Germany, UK, Finland, US, Singapore, Japan, Australia, Brazil, and more. Data never leaves your chosen region.
24/7 Enterprise Support
Live chat and email support with less than 1-hour response time. Most issues resolved same day.
Simple Managed Mattermost Pricing
Opsily handles updates, backups, SSL, monitoring, and support. You own your data.
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Frequently Asked Questions
Everything you need to know about deploying and managing Mattermost.
Sign up at Danian (or another managed host like Stackhero or TMDHosting). Choose your data center region. Click 'Deploy Mattermost' and your instance is live in under 1 minute. No server configuration, Docker knowledge, or DevOps experience required. SSL, backups, and monitoring auto-configured. Billing starts immediately (€9/mo on Danian). No contract.
Deploy Your Self-Hosted Chat Platform Today
Start your free 7-day trial on Opsily. No credit card required. €9/mo after trial, billed hourly. GDPR compliance and 24/7 support included.