Assigning / Associating Multiple Contacts to a single Account

I built an automation that automatically creates a new item on my Accounts Board, and connects it, whenever a new contact is created. I then imported a list of contacts, where one of the columns included the company name.

The automation worked as expected, and created the appropriate items and connections between the two boards. However, I’ve noticed that where there were multiple contacts for the same company, a separate item was created for each. How can I merge, and associate multiple contacts to a signal account?