HubSpot uses the Company domain name property value to differentiate between company records and to associate contacts and companies when automatic association is enabled. If you work with a company that has multiple domain names, you can add all of their domain names to one company record.
When a company record has multiple domains, activities from associated contacts with all included domains appear in the same company record's timeline. For example, if a company record has both hubspot.com and inbound.org as their Company domain names, any logged emails from either email domain will be logged on the same company record, and contacts with any of the email domains will be associated to the same company record when automatic association is enabled.
You can also create parent-child company associations. However, parent-child company associations do not transfer or share data (e.g., activities) between the records.
You can add additional domain names individually on a company record in the CRM, and in bulk via the API. Learn more about how to add additional company domains via the API.
Please note: if you add an additional domain name to a company record, and a company record already exists with that domain name, this will not merge the records or pull the activities in both company records together. Additional company domain names only apply going forwards. Learn how to merge companies.
To add an additional domain name on a company record:
Once a company has multiple domain names, you can export your companies to view all of their domains.
When you set a domain name as the primary domain name, it appears first in the record.