Corporate Office for Pet Supermarket- Specialty pet retail chain selling pet food, pet supplies and live animals. Select locations feature self-serve dog wash or grooming salons. At Pet Supermarket, we understand that your pets are a part of your family. You want to provide the best for them but like most families, you need to do it at the best value possible. We do our best every day for you and your family and it helps that at Pet Supermarket, We Speak Pet.