Pinterest can be used for branding your company and its products.
One way to use Pinterest for branding is to feature your products in a creative way. Coca-Cola's Pinterest boards include one called Recipes, which features recipes using Coke.
Another way Pinterest can be used as a branding tool is to ensure that your Pinterest profile information is to up-to-date and detailed enough to explain your business.
Here is the Boppy Company's profile, which identifies that it makes a popular nursing pillow for infants.