Shopify store to different company entities

We need to tie the webshops to 2 entities in the following way:
CH webshop : Company A (one country currency)
BNLX webshops : Company B (another country currency)

Company A & B is under the same group.

The stores domain will be under
ourdomainname.com/ch/
ourdomainname.com/bnlx/

How can this be done within Shopify? We are using Shopify Plus