Callegra Community

Secure Messaging Without Compromise

A hyper secure communications platform built on 30+ years of defense-grade expertise—delivering the privacy and control your organization deserves.

Learn How it Works

Callegra Community

Secure Messaging Without Compromise

A hyper secure communications platform built on 30+ years of defense-grade expertise—delivering the privacy and control your organization deserves.

Trusted By Mission-Critical Organizations

Catholic Charities USA

Catholic Charities USA

CBS

Converge One

David Grant USAF Medical Center

Defense Information Systems Agency

GD

Leo Tech

Naval Hospital Camp Pendleton

Optivor

Pentagon

San Juan Unified School District

Social Security Administration

Tyto Athene

United States Army

United States Marine Corps

United States Navy

US Air Force

Trusted By Mission-Critical Organizations

Catholic Charities USA

CBS

Converge One

David Grant USAF Medical Center

Defense Information Systems Agency

GD

Leo Tech

Naval Hospital Camp Pendleton

Optivor

Pentagon

San Juan Unified School District

Social Security Administration

Tyto Athene

United States Army

United States Marine Corps

United States Navy

US Air Force

Military-Grade Messaging With Consumer-App Simplicity

Your team’s conversations shouldn’t be mined by Big Tech, locked into proprietary platforms, or vulnerable to data breaches.

Callegra Community is a secure team messaging platform you control—with end-to-end encryption, flexible deployment, and zero dependencies on Microsoft or Big Tech infrastructure.

Secure Team Messaging Advanced Features

  • ✓Secure messaging for teams and groups
  • ✓Deploy on your servers or ours
  • ✓Web, iOS, and Android apps
  • ✓No Microsoft or Teams dependencies
  • ✓Hyper secure
  • ✓Built from the start with security in mind

Why Organizations Switch to Callegra Community

Real problems solved for teams that can’t compromise on security or independence

No SPAM Here...

Closed loop architecture prevents SPAM and intrustion from external sources. Outside intruders cannot access or message Callegra Community. Trusted and controlled communications.

Eliminate Vendor Lock-In

Own your communications infrastructure. No forced Microsoft licensing, no Teams requirements, no Big Tech dependencies. Deploy on Linux infrastructure you control—reducing costs and vendor risk.

Meet Compliance Requirements

Built for organizations where compliance isn’t optional. Proven to meet the strictest security and regulatory requirements.

Control Where Data Lives

Choose on-premises or hosted deployment. Your data stays where you need it—behind your firewall, in your datacenter, or on secure hosting. No forced cloud storage, no data mining.

Stop Data Surveillance

No Big Tech ownership means no data monetization. Unlike consumer platforms, Community isn’t owned by companies that profit from your conversations. Your communications are 100% yours.

Work From Anywhere

Web, iOS, and Android access with seamless sync. Secure communications across all devices. Your team stays connected whether they’re at their desk, in the field, or working remotely.

Deploy With Confidence

Proven and tested infrastructure and trusted by organizations where failure isn’t an option—reliability at scale with expert support.

Secure Team Messaging You Control—Not Big Tech

How Callegra Community Compares

The security of government systems with the usability of modern messaging

Consumer Platforms

    • ✓Easy to use
    • ✓Multi-platform apps
    • ✕Big Tech ownership
    • ✕Data mining built-in
    • ✕Vendor lock-in
    • ✕Limited compliance
    • ✕Cloud-only

Open Source Tools

    • ✓Self-hosted option
    • ✓No vendor lock-in
    • ✕Complex setup
    • ✕Limited certifications
    • ✕DIY support
    • ✕Maintenance burden
    • ✕Compliance gaps

Callegra Community

    • ✓Easy to use
    • ✓Multi-platform apps
    • ✓Independent ownership
    • ✓No data mining
    • ✓Flexible deployment
    • ✓Full compliance suite
    • ✓Expert support

Deploy Your Way

Choose the infrastructure model that fits your security and operational requirements

1. On-Premises

Deploy behind your firewall on your own servers. Complete control over data location, access, and security policies. Ideal for organizations with strict data residency requirements or existing datacenter infrastructure.

2. Hosted

Let us handle the infrastructure while you focus on communications. Secure hosting with the same defense-grade architecture, managed by our expert team. Fast deployment with enterprise reliability.

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Years of Innovation
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Countries Served
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Users