Once logged into HubSpot, search for the Agent you're adding a company name to using the search bar in the top right corner
From the Agent's HubSpot page, click Add next to Company in the top right corner:
When the add screen opens, click Create New
Copy the company name from the Agent's Freshdesk account and enter it into the Company Name field in HubSpot
Once you enter the company name into the Company Name field, scroll down to click Create
Once you click Create, HubSpot will take you to the agent's company contact page. To get back to the agent's HubSpot profile page, click their name in the top right corner