Petco. The largest pet supply companies in the United States are without a doubt PetSmart and Petco Animal Supplies. PetSmart, which is headquartered in Phoenix, Arizona, brings revenue in from brick-and-mortar stores across the U.S., as well as in Canada and Puerto Rico.

Leading pet supplies online stores in the U.S. 2023 Chewy.com is the online shop with the highest e-commerce net sales selling products in the pet supplies e-commerce market in the United States. In 2023, Chewy's net sales were worth over 11.1 billion U.S. dollars.

We always recommend stearing away from huge online marketplaces for pet retail, since these online intermediaries tend to include a huge profit margin – one that takes 10 to 30% of the profit. However, even if your decide to make your own website, you'll have to choose how to create it.

In the United States in 2022, with 2,120 establishments, California had the most pet stores. Florida closely followed, with about 1,600 pet stores.