Hi @designdivafw, thanks for the question!
You can definitely sign people up manually or via the standard WC account registration. You’ll just need to adjust their user role to the Wholesale Customer role (this is the included role in the free version) once registered so they can see the wholesale pricing as the pricing is based off the role.
We also have another plugin called Lead Capture which lets you create a custom wholesale registration form and have it automatically assign the correct role after the user is approved (there’s an approvals process included in that plugin as well).
Here’s the details for that one: https://wholesalesuiteplugin.com/woocommerce-wholesale-lead-capture/
Hope this helps, feel free to send through any pre-sales questions on the form at the bottom of that page if you have any more questions! We’re only too happy to help ??