Hey @charlie happy new year!
Yes, you can white-label Pickaxe Studios for clients, however, until the soon-to-come platform update, your clients will not have dedicated access to the Pickaxe backend, so they cannot control/monitor user access and view KPIs.
With the upcoming Pickaxe update, you will be able to create standalone Pickaxe admin accounts for clients with user permission settings so you can control what they have access to.
You can find more info here: Team Account Support with Role-Based Permissions