When you're setting up your sponsors and exhibitors, you'll want to assign your staff to their respective companies. Before you do this, be sure to add the staff person as a user with the Expo role first. For more information, visit Adding a Single User.
From the Sponsor & Exhibitor portal, click on Companies > All Companies:
Next, scroll or search for the company you're looking for and click on the Company Name:
On the next page, you'll be able to view the Company Details:
To edit them, click the Edit button in the top right corner:
Scroll to the Staff box. From there, use the add (+) or minus (-) buttons to add/remove staff members as needed. You can also use the arrows next to the user's names to rearrange them:
Click Save when you're finished.
If you're ready to invite the Staff person in to edit company details, you can invite them individually.