Schedule Meetings Across Companies & Calendar Platforms
Make Cross-Company Scheduling Feel Seamless
Coordinate schedules across companies, organizations, and calendar platforms without changing how your teams work. CalendarBridge keeps availability connected across separate systems so everyone can schedule with accurate information.
No Credit Card Required.
Cross-Tenant Scheduling
Cross-Platform Calendars
External Collaboration
Shared Availability
Multiple Organizations
Separate Organizations Make Scheduling More Complicated
Teams don’t always work within a single company, tenant, or calendar platform. Employees may collaborate across subsidiaries, partner organizations, clients, or newly combined companies, leaving availability divided between systems that don’t communicate with each other.
Your Team Can See Each Other. The Client Can't.
Internal scheduling is easy because coworkers share a calendar environment. Add a customer, partner, consultant, or interim executive, and that visibility disappears.
One Meeting Can Span Five Companies
The more organizations involved, the more availability gets exchanged through email, assistants and manual follow-up.
Separate Tenants Hide Real Availability
Subsidiaries, acquired companies, portfolio companies and partners may work together every day while remaining on separate Microsoft 365 or Google Workspace tenants.
- Calendar Sync
Keep Availability Connected Across Companies
When teams work across separate companies or tenants, one organization may have no visibility into commitments scheduled in another. CalendarBridge syncs availability across those calendars so each one reflects when someone is already busy, helping teams schedule accurately while accounts and organizations remain separate.
- Smart Scheduling
Coordinate Meetings Across Organizational Boundaries
Finding a meeting time gets harder when attendees work for different companies and their availability lives in separate systems. Use CalendarBridge scheduling links or the AI Scheduling Assistant to coordinate availability and schedule meetings across organizations without the usual back-and-forth.
Prefer self-service booking?
Learn about Scheduling Pages and Booking Links, to share your accurate availability to anyone, anytime and anywhere.
Need one place to see your own calendars?
Learn about Unified Calendar, to see all your calendars and availability together in one convenient view.
- Need Help or Have a Question?
Talk to Us
Need CalendarBridge for more than one person? Our team can help you understand the best setup for your organization, including multiple user licenses, account configuration, team deployment, security review questions, and the right way to structure calendar sync across your users.
Get Help Planning Your Team Setup
Tell us a little about your organization, the number of users you need to support, and any setup or security questions you have. A CalendarBridge team member will follow up to help you choose the right path forward.
By submitting this request, you agree that CalendarBridge may contact you about your request, and you agree to our Privacy Policy and Terms of Use.
Privacy and Security Come First
With CalendarBridge, you stay in full control of your calendar and personal data.
We never store, analyze, or sell your calendar data to anyone.
We only request bare-minimum calendar permissions, never your email or files.
SOC 2® verified and Microsoft 365 GCC High compatible for ultimate compliance.
GDPR Compliant
Including DPA
SOC 2® (Type 1 & 2)
Verified, 2026
HIPAA Compliant
Since 2022
Trust Center
Available on Request
- Trust is Everything
We are Trusted by Major Companies Across All Industries
For enterprise-grade security and account management tools, companies turn to CalendarBridge.
What Cross-Company Scheduling Looks Like in Practice
5.0
My assistants across several companies no longer need to talk to one another; they can simply see that time is blocked by another company
Alex
React Developer
5.0
Bankers I work with thought the AI assistant was a real person and complimented how well it coordinated across time zones.
Gianna
Technology Sales Consultant
5.0
CalendarBridge gives customers visibility into my availability without leaking confidential information about how I am spending that time.
William
Solutions Engineer, Tech
- Get help
FAQs About Our Cross Company Scheduling Tools
Quick answers to the most common questions. Need more help? Check out our help site.
No. People you schedule with do not need a CalendarBridge account. You can send them a scheduling link or include the CalendarBridge AI Scheduling Assistant in an email conversation, and they can participate using their existing email and calendar tools.
Yes. CalendarBridge can synchronize calendar availability across separate Microsoft 365 and Google Workspace tenants, including Microsoft-to-Microsoft, Google-to-Google, and Microsoft-to-Google environments. This allows users in different tenants or domains to see accurate availability while continuing to work in Outlook or Google Calendar.
No. CalendarBridge is designed to work while your Microsoft 365 or Google Workspace tenants remain separate. It synchronizes availability between calendars, so organizations can improve cross-tenant scheduling without first consolidating tenants or migrating everyone to the same calendar platform.
You control how much meeting information is synchronized. A CalendarBridge sync can share only free/busy availability, or it can be configured to include details such as the event subject, description, location, conferencing information, and attendees. Organization administrators can also enforce policies that restrict which event details users are allowed to sync.
Yes. The CalendarBridge AI Scheduling Assistant works through email, so the other participants do not need CalendarBridge. Add the assistant to an email conversation and it can communicate with participants, suggest times based on your connected calendars, handle scheduling changes, and send the meeting invitation.
Yes. CalendarBridge group accounts provide administrators with controls for managing users, authorized domains, and sync connections. Administrators can restrict which domains users may sync with and control what event information is allowed to be synchronized, including enforcing free/busy-only configurations.
CalendarBridge supports Google Calendar for Gmail and Google Workspace accounts, Microsoft 365 and Exchange Online calendars, Outlook.com calendars, and Apple iCloud calendars. Public Internet calendars available through an ICS URL can also be used as sync sources. Google and Microsoft source calendars support real-time syncing, while iCloud and ICS source calendars are checked periodically.
CalendarBridge provides security and compliance documentation through its Trust Portal, including SOC 2, GDPR, and HIPAA materials, security policies, subprocessors, and audit documentation. A Data Processing Addendum is also available, and organizations conducting a vendor review can request access to gated reports or submit a security questionnaire.