Keep Every Directory in Your Organization Connected, Clean, and Always Up to Date

Modern organizations don’t run on a single directory anymore. You’re managing multiple tenants, subsidiaries, business units, or partner environments, each with its own contacts, mailboxes, and distribution lists. When those directories drift out of sync, communication slows, teams lose visibility, and IT spends hours manually updating records.

CiraSync eliminate that complexity with automated, secure, and scalable directory‑to‑directory synchronization.

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Why Directory‑to‑Directory Sync Matters

When directories fall out of sync, the impact is immediate:

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Outdated contact info leads to missed calls and delayed responses

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Teams lose visibility into who’s who across departments or tenants

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IT wastes hours manually updating records

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M&A integrations stall due to mismatched directory structures

Our Products

CiraSync Cloud

Effortless enterprise-grade one-way syncing of Contacts & Calendars across unlimited users, hosted on the Azure cloud

CiraSync On-Premise

All the benefits of CiraSync Cloud, hosted directly on-premises for high security environments

CiraSync Hub

Two-way syncing of Contacts & Calendars, not only across Microsoft environments but across Google, Hubspot, and many other CRM platforms

One Platform. Every Directory. Synced.

Whether you need one‑way updates or full two‑way synchronization, CiraSync gives you the control, automation, and reliability your organization needs to stay connected.

No more manual updates. No more outdated contacts. Just clean, consistent directories.

CiraSync Cloud

CiraSync keeps your directories aligned by pushing updates from a single source of truth to any connected directory, at-scale and automatically.

Perfect For:

Organizations with a primary Microsoft 365 tenant feeding multiple downstream directories
Keeping shared mailboxes, GALs, and distribution lists consistent across environments
Ensuring frontline and mobile teams always see accurate contact information

Key Benefits:

Automated one‑way sync from master directory to secondary directories
Zero-touch updates.
Enterprise-grade security and Azure-based infrastructure

CiraSync On-Premise

CiraSync On‑Premise keeps your directories aligned by pushing updates from a single source of truth to connected directories and devices—entirely within your own environment.

Perfect For:

Organizations with a primary on‑prem or Microsoft 365 directory feeding downstream directories or users
Keeping shared mailboxes, GALs, and distribution lists consistent in high‑security environments
Ensuring frontline and mobile teams always see accurate contact information—without cloud dependency

Key Benefits:

Automated one‑way sync from master directory to secondary directories and devices
Zero‑touch updates with no end‑user action required
Fully on‑premise deployment with no data leaving your network
Enterprise‑grade security designed for regulated and air‑gapped environments