Pantone Connect Multi-Seat licenses can be found and purchased here. This does show both Individual and Multi-Seat subscription options which you can toggle between by clicking the appropriate tab.

Once your team makes a purchase, an email with instructions will be sent to the email address used during purchase process to setup the license (seats) in the Pantone Connect License Management portal.

NOTE: Multi-Seat subscriptions are intended for 2 or more users and will NOT work with common email domains such as gmail.com, hotmail.com, yahoo.com, etc.