17 Brands That Are Behind the Kirkland Signature Products

Batteries: Duracell

Kirkland batteries always had a special something, and since we’ve come to the conclusion that Duracell is behind them, it all makes sense now. In terms of brand recognition, it’s the second after Energizer. Even so, Duracell is famous for its lasting capacities, which are much longer than typical batteries. We can only be glad that Costco’s gotten its hands on Duracell batteries.

Dog Food: Diamond Naturals

You might be willing to slum it when you buy food at a grocery store, but you don’t want your dog to starve for too long. However, if you buy from Costco, that won’t be a problem. Dog Food Insider revealed that Kirkland’s dog food is made by Diamond Naturals.

As it is considered to be the best dog food, you should relax, knowing that buying in Costco-sized bulk won’t have any negative effect on your pup’s favorite meal.