Marty Grosjean has been a leader and innovator in natural pet products for more than 15 years. He is the founder of Only Natural Pet—a Boulder, Colorado-based e-commerce and brick-and-mortar retailer. Only Natural Pet provides human-quality, natural dog and cat food, as well as supplements and supplies that are now available at PetSmart.


Marty is also PetSmart’s VP of Product Development for Consumables. His commitment to ingredient quality and product integrity is a driving force behind the evolution of PetSmart’s proprietary brands.


Working closely with renowned holistic and allopathic veterinarians along with a team of experts, Marty guides the development of products and solutions PetSmart is proud to stand behind.


  • B.A., University of Colorado

  • M.B.A., California State University, Fullerton

Marty Grosjean