Signal, deployed locally.
The new standard for enterprise messaging.
Built on the open-source Signal protocol. Fully self-hosted, military-grade E2EE — no server can ever decrypt.
Take communication sovereignty back.
A self-hosted Signal stack for organizations with high-sensitivity, compliance, and data-sovereignty requirements.
Military-Grade E2EE
Built on the open-source Signal Protocol with forward and backward secrecy. Keys live only on user devices; the server only ever relays ciphertext.
Full Data Sovereignty
The server stores only ciphertext; keys live on user devices. Full-machine migration, disk imaging and data-center relocation are all under your control — and always ciphertext.
Auditable Client
The client is built on the open-source Signal Android codebase with auditable source. Its security guarantees do not depend on the server being trusted.
Why not WeChat Work, Slack, or Teams?
SaaS enterprise IM wins on convenience and ecosystem, but it cannot match self-hosting on data sovereignty and key control.
| Feature | Public IM WeChat / Telegram | SaaS Enterprise IM WeChat Work / Slack / Teams | Local Signal Self-hosted |
|---|---|---|---|
| End-to-end encryption by default | |||
| Data fully owned by you | |||
| Server holds no keys | |||
| Metadata minimization | Partial | ||
| Self-hosted, private network | |||
| No foreign service dependency | Partial | ||
| Auditable client |
Two paths to delivery.
Licensed by user count (50 / 100 / …). Two tiers — the difference is whether you want to deploy it yourself.
Self-Deploy
We deliver Docker images and a deployment manual
- Complete server Docker images, ready to run
- Pre-configured Android APK client
- Step-by-step deployment manual
- Licensed in tiers of 50 / 100 / …
We Deploy
We remote into your servers and bring it to production
- We log into the servers you provide
- Deploy, connect, register — end to end
- On-site debug until you can send a message
- At least 2 upgrades per year during maintenance
Who runs Local Signal?
High-sensitivity, compliance-bound, cross-team workflows — buyers who treat private IM as table-stakes.
Government & Public Sector
Cross-department, multi-city coordination — informal deliberation and sensitive directives outside formal channels.
Law Firms
Client intake, case-file review, litigation strategy — privileged content never leaves the firm.
Investment & Asset Management
Deal flow, internal credit committees, diligence, allocation calls — MNPI never transits public IM.
Healthcare & Sensitive
Inter-physician consults, cross-hospital discussions, clinician–patient follow-ups under data-residency mandates.
Listed Co. / Executives
Earnings blackouts, M&A talks, board topics, executive moves — sensitive lines routed through your own channel.
Cross-Border Teams
Your server runs in your chosen jurisdiction — out of reach of public-IM policy changes, data requests, and platform bans.
Answers, up front.
How does this differ from public Signal?
All data stays on your own server with no foreign-service dependency. Identities do not require real phone numbers. The client is adapted to connect to your private deployment.
Can existing Signal clients connect?
No. You must use the Android client we provide, which is preconfigured for your private deployment.
Do I need a domain name?
No. You can run on IP + self-signed certs, or purely on a private network.
Where is data stored? Can I migrate it?
The server stores only ciphertext (keys and plaintext live on user devices). Full-machine migration, disk imaging, and data-center moves are all supported — you choose where the storage lives.
How is it priced?
Licensed by user count (50 / 100 / …). Email [email protected] for pricing.
What happens if I exceed the user limit?
Email us to upgrade your tier — no redeployment required.
Where can users get the client? Is it on app stores?
APKs are delivered via private links to buyers. They are not on public app stores.
Is iOS supported?
Currently Android only. iOS is on the roadmap.
Does the server track upstream Signal updates?
At least two upgrades per year during the maintenance period — covering upstream Signal protocol updates and critical security fixes.
Take communication sovereignty back.
One email to start. We’ll discuss the right tier and timeline together.
[email protected]