CiraSync On‑Prem: High Security Contact & Calendar Sync

Enterprise‑Grade Sync. Zero Data Leaves Your Environment.

CiraSync On‑Prem is built for organizations that demand absolute control over their data. Designed for high‑security, regulated, and air‑gapped environments, CiraSync On‑Prem delivers the same powerful contact and calendar synchronization capabilities as CiraSync Cloud, without ever transmitting data outside your firewall.

If your organization requires strict compliance, isolated networks, or hardened security postures, CiraSync On‑Prem gives you the confidence and control you need.

Why High‑Security Teams Choose CiraSync On‑Prem

100% On‑Premises Deployment

All processing, storage, and synchronization occur entirely within your infrastructure. No cloud dependencies. No external APIs. No outbound data flow.

Zero Trust–Aligned Architecture

CiraSync On‑Prem operates under a least‑privilege model, ensuring only the minimum required access is granted. Every sync action is fully contained and fully auditable.

Built for Regulated & Sensitive Environments

Ideal For: Government agencies, Defense contractors, Financial institutions, Healthcare systems, Critical infrastructure & Enterprises with strict compliance mandates

Whether you’re protecting PII, PHI, or classified data, CiraSync On‑Prem keeps your information exactly where it belongs- inside your environment.

Secure, Automated Sync for Mobile & Frontline Teams

Deliver accurate, up‑to‑date contacts and calendars to every employee’s smartphone, without compromising security.

Whether you need Global Address List to phone, shared calendars to phone, automated updates with no user action required, departmental, role‑based, or location‑based contact lists, your teams stay connected. Your data stays protected.

Secure Features

High‑Security Features That Set CiraSync On‑Prem Apart

Hardened Deployment Options

Install on a secure Virtual Machine or physical server within your network. Supports fully isolated, offline, and air‑gapped environments.

No External Connectivity Required

CiraSync On‑Prem does not require:

• Internet access
• Cloud services
• External authentication
• Third‑party integrations

Your environment remains sealed.

Granular Administrative Control

Define sync rules, access levels, and update schedules with precision. Maintain full oversight of every sync action.

Auditable, Transparent Operations

All sync activity is logged internally, giving security teams complete visibility for compliance and reporting.

Keep Your Data In. Keep Your Teams Connected.

CiraSync On‑Prem gives you the best of both worlds: airtight security and seamless mobile productivity. Empower your workforce with the contacts and calendars they need without ever compromising your security posture.

Security You Can Trust

Built for the most demanding enterprise environments. Your data stays protected with industry-leading security practices.

SOC 2 Compliant

GDPR Ready

Ready to Sync Smarter?

Join 3,000+ enterprises that trust CiraSync for seamless contact and calendar synchronization.