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Diamond Naturals vs Kirkland Signature

Diamond Naturals is made by Diamond Pet Foods (owned by Schell & Kampeter, Inc.), and Kirkland Signature is branded by Costco Wholesale Corporation and made by third-party co-packers, and both make food for cats and dogs. On KibbleLab, Diamond Naturals and Kirkland Signature both average 8.6 out of 10.

Diamond Naturals and Kirkland Signature compared

Diamond Naturals Kirkland Signature
Manufacturer Diamond Pet Foods Costco Wholesale Corporation
Parent company Schell & Kampeter, Inc. Independent
Founded 1970 1983
Headquarters Meta, Missouri, USA Issaquah, Washington, USA
Manufacturing Whether a brand makes its own food in-house or has it produced by an outside contract manufacturer or co-packer.
In-house Co-packer
Made in United States USA
Manufacturing region Missouri Not listed
Products listed 25 17
Serves Cats & dogs Cats & dogs
Price tier A relative price guide, from $ (most affordable) to $$$$$ (most premium), based on the brand's typical retail cost.
$$$ $$
WSAVA guidelines The World Small Animal Veterinary Association (WSAVA) publishes criteria for evaluating a manufacturer: qualified nutritionists on staff, feeding trials, and published research. It does not certify or endorse brands.
No No
PSC accredited The Pet Sustainability Coalition is a nonprofit that accredits pet companies on their environmental and social impact, through third-party verification. It reflects sustainability practices, not food quality.
No No
Score The average KibbleLab score across this brand's scored foods, on a 0 to 10 scale. Foods are scored on published veterinary science. How scoring works .
8.6 (avg of 25) 8.6 (avg of 17)
Recalls on record We track the FDA's animal food recall listings back to January 2019 and publish every pet food recall automatically. A filing that isn't pet food may not appear here.
None None
Where to buy
Amazon
Amazon

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Diamond Naturals vs Kirkland Signature: how they compare

Scores

Diamond Naturals and Kirkland Signature average the same KibbleLab score, 8.6 out of 10, across 25 and 17 scored foods. Scores apply the same criteria-based rubric to every food, drawn from published veterinary science.

Who makes them

Diamond Naturals is made by Diamond Pet Foods, owned by Schell & Kampeter, Inc., based in Meta, Missouri, USA, founded in 1970. Kirkland Signature is a brand of Costco Wholesale Corporation, based in Issaquah, Washington, USA, founded in 1983. Its food is made by third-party co-packers in USA.

Standards and range

Neither meets WSAVA's published manufacturer criteria. KibbleLab lists 25 Diamond Naturals foods and 17 Kirkland Signature foods.

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Common Questions

Which scores higher on KibbleLab, Diamond Naturals or Kirkland Signature?

Diamond Naturals and Kirkland Signature average the same KibbleLab score, 8.6 out of 10.

Who makes Diamond Naturals and Kirkland Signature?

Diamond Naturals is made by Diamond Pet Foods, which is owned by Schell & Kampeter, Inc. Kirkland Signature is a brand of Costco Wholesale Corporation. Its food is made by third-party co-packers in USA.

Which brand has more products on KibbleLab?

Diamond Naturals has 25 products in the KibbleLab database, compared with 17 for Kirkland Signature.

Where is each brand based?

Diamond Naturals is based in Meta, Missouri, USA. Kirkland Signature is based in Issaquah, Washington, USA.

Have Diamond Naturals or Kirkland Signature been recalled?

Neither Diamond Naturals nor Kirkland Signature has a recall on record in the KibbleLab database. We track the FDA's animal food recall listings back to January 2019 and publish every pet food recall automatically. A filing that isn't pet food may not appear here.

See the full profiles: Diamond Naturals and Kirkland Signature .

More comparisons

KibbleLab provides informational content only. This is not veterinary advice. Always consult a qualified veterinarian before changing your pet's diet.

This is a neutral, factual comparison, not a ranking or an endorsement of either brand. KibbleLab may earn affiliate commissions through links. No one can pay for placement or a higher score.

Brand and manufacturer details are compiled from public sources and not independently verified; they may not reflect contract manufacturing or co-packing. Recall data is compiled from public FDA filings, and a filing may name the parent company rather than the brand. We track the FDA's animal food recall listings back to January 2019 and publish every pet food recall automatically. A filing that isn't pet food may not appear here.

KibbleLab scores and commentary are editorial opinions based on published data. Represent one of these brands? Request a correction. Anyone else can email us. See our Terms.