If you mean the brand Zara you find in Zara stores?
Inditex group is the owner of Zara, and from what i know they only sell Zara brand in their own stores. I doubt you can find it anywhere else to be honest. Maybe some here on Salehoo knows more:)
Same with H&M, their brands you will find in H&M stores and their own website.
Here is the info on wiki: Link hidden: Login to view)