With v6.7.0 (iOS) and v4.4.0 (macOS), you can add 'Company Contacts', which allows you to link multiple contacts to the same company.
This allows you to see all the activities across all linked contacts in the 'company' page. You can also easily navigate between different linked contacts by tapping the 'Company' name button.
To change a company's linked contacts you can tap on the '...' button and select "Add Linked Contacts", or select "Edit Contact" and change the list from there.
Notes:
- A contact can be linked to only one 'company' at a time
- The company account's contact information (their phone number, emails, and addresses) will also be visible on each linked contact's "Info" tab.
- When adding a new contact, you can tap on the 'add to company' button to select from the list of 'companies'
- The 'Company Account' record also behaves like a regular contact, so you can add Logs, ToDos, Files, Custom Fields, Tags and Private Groups to them