Kirkland Signature Salmon & Sweet Potato Formula Dog Food

Kirkland Signature is the private-label brand of Costco Wholesale Corporation. This specific dry dog food, the Salmon & Sweet Potato Formula, is part of their Nature's Domain line, which focuses on grain-free nutrition. The brand was established in 1992 and named after the city of Kirkland, Washington, where Costco's headquarters were located at the time.

While Costco owns the Kirkland Signature brand, they do not manufacture the food themselves. The Nature's Domain line is produced by Diamond Pet Foods, Inc., at their manufacturing facilities across the United States. Diamond Pet Foods is a prominent family-owned pet food manufacturer known for producing several high-end and private-label specialty brands.

Ownership of the brand remains with Costco Wholesale Corporation, an American multinational corporation which is one of the world's largest retailers. The brand's philosophy is based on providing high-quality products that meet or exceed the performance of national brands at a lower price point.