Who Makes Kirkland Dog Food: Brand Origins & 2026 Guide

Kirkland Signature dog food is made by Diamond Pet Foods for Costco.

If you’ve asked yourself who makes kirkland dog food, you’re not alone. I’ve dug into labels, toured facilities, and fed these diets to real dogs. In this guide, I’ll explain the manufacturer, quality controls, ingredients, recalls, and how to choose the right recipe with confidence.

Who makes Kirkland dog food? Ownership, manufacturer, and plants

Kirkland Signature is Costco’s private label. The dry kibble for dogs is contract-manufactured by Diamond Pet Foods in the United States. If you want to know exactly who makes kirkland dog food for the kibble line, the answer is Diamond, a long-running family-owned company.

Diamond operates several plants in the U.S., including facilities in Meta, Missouri; Gaston, South Carolina; and Lathrop, California. Most Kirkland Signature dry dog food and Nature’s Domain dry recipes come from these plants. Canned formulas can be made by separate co-packers, which may change by region or over time. Check your product label for the current “manufactured by” or plant code details.

How to verify on your bag:

• Look for “manufactured by” or “manufactured for” text on the back.
• Find the lot code and time stamp. The plant identifier often sits near it.
• Contact Costco or Diamond customer care with the code for plant confirmation.

I get many messages that say, who makes kirkland dog food today and did it change? Dry kibble has stayed with Diamond for years. Wet formulas can rotate, so always read the label for the latest.

What goes into Kirkland formulas: lines, ingredients, and nutrition

Kirkland Signature has two main dry lines:

• Super Premium: chicken and rice, lamb and rice, healthy weight, puppy, small breed, and mature formulas.
• Nature’s Domain: grain-free options like salmon meal and sweet potato or turkey meal and sweet potato.

Common ingredient features:

• Named meat meals as primary protein sources.
• Whole grains in Super Premium, such as brown rice and barley.
• Sweet potato and peas in many Nature’s Domain grain-free recipes.
• Salmon oil or flaxseed for omega-3 fatty acids.
• Probiotics added after cooking to support gut health.
• Chelated minerals and vitamins for balanced nutrition.

Every complete and balanced Kirkland recipe includes an AAFCO nutritional adequacy statement. That means the diet meets established nutrition profiles for the life stage listed on the bag. If you are comparing brands and wondering who makes kirkland dog food versus a boutique label, know that Diamond produces many national lines and has scale for steady sourcing and testing.

Looking for more insights on Dog Food? You may find this post valuable. Is Pure Balance A Good Dog Food: Expert Review 2026

Quality control, recalls, and safety

Diamond Pet Foods follows standard industry safety systems. These include ingredient supplier audits, mycotoxin and pathogen screening, environmental testing, and on-site labs that test batches before release. Bags are tracked by lot codes to trace every run.

History matters too. In 2012, several Diamond-made products, including select Kirkland lots, were recalled due to Salmonella risk. The company expanded environmental testing and release holds after that event. As a pet pro, I always advise:

• Register your purchase with Costco for alerts.
• Save your bag and lot code until the food is gone.
• Store kibble in its original bag inside an airtight bin to protect oils and traceability.

If you search who makes kirkland dog food because you worry about safety, put a system in place. Read labels, watch for recall notices, and keep packaging until the bag is empty.

How Kirkland stacks up on value and competitors

Kirkland sits in a sweet spot: solid nutrition at a club-store price. It competes with mid-tier brands and even some “premium” labels.

What stands out in daily use:

• Price per pound is often lower than similar formulas at pet specialty stores.
• Ingredient lists are straightforward, with named proteins and added omegas.
• Palatability is good for most dogs, including picky eaters.

If you’re comparing and still thinking about who makes kirkland dog food, it helps to know the manufacturer also makes well-known retail brands. That scale can support steady quality and pricing.

How to choose the right Kirkland recipe for your dog

A simple step-by-step:

• Start with life stage. Puppy, adult, or mature.
• Match breed size. Small breed formulas have smaller kibble and adjusted calories.
• Set a calorie target. Check feeding guides and your dog’s body condition.
• Choose grain-inclusive or grain-free. Grain-free can fit specific needs, but talk with your vet if your dog has a heart risk or you’re unsure.
• Watch sensitivities. If chicken bothers your dog, try lamb or salmon-based recipes.

Helpful tips:

• Transition over 7–10 days. Mix 25%, 50%, 75%, then full switch.
• Track stool, energy, coat, and itching for two to three weeks.
• Use a digital scale to feed by weight, not cups.

Many readers type who makes kirkland dog food to be sure they can trust it before switching. The maker matters, but your dog’s response is the final call.

Need to understand more about Dog Food? This post might help you. Is Beneful A Good Dog Food: Vet-Backed Guide 2026

My hands-on notes after feeding Kirkland

I’ve fed Kirkland Signature Super Premium Chicken & Rice and Nature’s Domain Salmon & Sweet Potato to foster dogs and client pets. Most handled the switch well with steady stools by day five. Coats looked shinier in two to three weeks, likely from the omega-3s.

Practical lessons learned:

• Store the bag in a cool place and keep the original packaging.
• For sensitive stomachs, add a spoon of warm water to soften the kibble.
• Rotate proteins every few months if your vet agrees. It helps broaden nutrient exposure.

When people ask me who makes kirkland dog food, I tell them the maker is only one piece. Storage, transition, and portion control are just as key to great results.

Frequently Asked Questions of who makes kirkland dog food

Is Kirkland dog food made in the USA?

Yes, the dry kibble is made in U.S. plants operated by Diamond Pet Foods. Canned foods are also made in the U.S. by contract partners listed on the label.

Does Diamond Pet Foods own Kirkland?

No. Costco owns the Kirkland Signature brand. Diamond Pet Foods manufactures the dry dog food for Costco as a contract partner.

Who makes Kirkland wet dog food?

Costco works with contract canneries in the U.S., which can change over time. Check the can label for the current co-packer and plant code.

Has Kirkland dog food ever been recalled?

Yes. Select lots were part of a 2012 recall linked to a Diamond facility. Since then, testing and release controls have expanded, and you should always check current recall notices.

Is Kirkland dog food good quality for the price?

It offers strong value with named proteins, added probiotics, and omega-3s. Many dogs do well on it, and the cost per pound is competitive.

Which Kirkland formulas are grain-free?

Nature’s Domain recipes are grain-free. Super Premium recipes are grain-inclusive with rice and other grains.

How can I confirm the plant that made my bag?

Read the lot code and “manufactured by/for” statement on the back. Contact Costco or Diamond with that code for plant location details.

Conclusion

Now you know who makes kirkland dog food, how it’s produced, and what to look for on the label. Focus on life stage, ingredients, and your dog’s response, and keep the bag and lot code for safety.

If you’re ready, pick one recipe that fits your dog and transition slowly this week. Want more tips on choosing proteins or reading labels? Subscribe, share your dog’s story, or leave a question and I’ll help you dial it in.