When the mission outgrows Mattermost.
Messaging, voice, video and governed AI on your networks, with native XMPP and Matrix federation, so no one is forced to switch systems.
See Rocket.Chat in action.
A live demo, tailored to how your teams work.
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Trusted by the world's most critical organizations
One platform. One security model.
Every capability runs inside your boundary, under the same policy.
Messaging, voice, video and files in one workspace.
Native Matrix and XMPP federation, plus low-side bridges.
Access, data protection and audit under one policy.
Resilient in DDIL environments, from HQ to ATAK.
AI on your models, scoped to each user's access.
On-premises, secure cloud or air-gapped.
AI search
- If both feeds drop, the system runs on UPS [2].
- Emma is sharing last week's UPS test logs before the review [2].
- The reviewers asked to see the UPS test logs [3].
Both PWR DIST A and B are in active-active mode. Failover switches in under 80ms, and backup UPS covers a minimum 45-minute window.
Both feeds dropping puts us on UPS. I'll pull the logs from last week's test.
The reviewers will want the UPS test logs as well.






Mission partnersNative Matrix and XMPP
Low-side platformsMS Teams and IRCEvery ally. One workspace.
Your workspace federates with allies over XMPP, agencies over Matrix and forward teams on ATAK. Each joins the channels you share with them, as themselves.
Zero trust. Or implied trust.
Mattermost bridges XMPP and Matrix through plugins: a component in the middle both sides have to trust. Rocket.Chat is native on both, so nothing sits in between.




Native on both protocols
XMPP and Matrix are built into Rocket.Chat and upgrade with it. Nothing extra to run, patch or accredit for either.
Proof of who said what
Each sender is verified by their own server, so your access rules and audit trail rely on the real person.
MS Teams on the low side
A low-side bridge keeps MS Teams users in the conversation, while classified channels stay native.
Same foundations. Different reach.
Both run self-hosted and air-gapped, with attribute-based access control, at DoW IL2 to IL6. The difference shows the moment you work beyond your own walls.
Source: Mattermost documentation and GitHub, and Pexip documentation, November 2026.
Trusted across U.S. defense.
"What drove us to partner with Rocket.Chat was the opportunity to bring commercial chat functionality into our Multi-Level Security environment."
"We needed our engineers to be able to work across multiple programs simultaneously, with absolute confidence that there was zero data leakage between them."
"With over 40 active programs, we needed a stable, secure way to keep our teams connected."
How does a move from Mattermost work?
Our professional services team moves everything with proven migration tools: conversations, files, users and configurations. We run the whole process to keep disruption low, and you can pilot on your own infrastructure before anyone switches.
Will we lose conversation history?
No. Conversation history, files and configurations all come across, with data integrity and the full audit trail preserved.
Mattermost has access control too. What's different?
Both enforce rules inside the workspace. The difference is at its edge: with native XMPP and Matrix federation, partners arrive as real, verified people, so your rules and audit trail rely on who they are, not on an account a bridge plugin controls.
How do we work with allies and agencies on other systems?
Through native federation. Allies on XMPP and agencies on Matrix connect server to server and join the channels you share with them, as themselves, under your rules and audit trail. Allies on Rocket.Chat connect directly, and MS Teams users join through a low-side bridge.
Which networks and accreditations does it run on?
Rocket.Chat runs on NIPR, SIPR and JWICS, at DoW IL2 to IL6. It's hardened on Iron Bank, Platform One Awardable, and available through the AWS Marketplace for the U.S. Intelligence Community (ICMP), where deployments are always air-gapped.
How does pricing work?
Every quote is built around your deployment: your networks, your users and the support you need. Book a demo, or tell us you're comparing quotes, and a specialist will talk you through pricing.



