35 Big Brands Behind Costco's Kirkland Signature Products

Diamond Pet Foods: Kirkland Signature Super Premium Dog Food is reportedly made by Diamond Pet Foods, a well-known pet food manufacturer.

Perrigo: Perrigo is believed to produce Kirkland Signature over-the-counter medications, including allergy medication and ibuprofen.

The Clorox Company: Some Kirkland Signature cleaning products, such as disinfecting wipes, may be produced by Clorox.

Hormel Foods Corporation: Kirkland Signature canned chicken breast is said to be manufactured by Hormel.

The Jim Beam Company: Kirkland Signature American Vodka is rumored to be produced by Jim Beam.

San Francisco Bay Coffee Company: Kirkland Signature coffee beans are thought to be supplied by the San Francisco Bay Coffee Company.

Bumble Bee Foods, LLC: Kirkland Signature canned tuna is rumored to be produced by Bumble Bee Foods.