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Kirkland Signature vs Purina Pro Plan

Kirkland Signature is branded by Costco Wholesale Corporation and made by third-party co-packers, and Purina Pro Plan is made by Nestlé Purina PetCare (owned by Nestlé S.A.), and both make food for cats and dogs. On KibbleLab, Purina Pro Plan averages 9.0 out of 10 across its scored foods, compared with 8.6 for Kirkland Signature. Purina Pro Plan meets WSAVA's published criteria for evaluating a manufacturer, while Kirkland Signature does not.

Kirkland Signature and Purina Pro Plan compared

Kirkland Signature Purina Pro Plan
Manufacturer Costco Wholesale Corporation Nestlé Purina PetCare
Parent company Independent Nestlé S.A.
Founded 1983 2001
Headquarters Issaquah, Washington, USA St. Louis, Missouri, USA
Manufacturing Whether a brand makes its own food in-house or has it produced by an outside contract manufacturer or co-packer.
Co-packer In-house
Made in USA United States
Manufacturing region Not listed Missouri
Products listed 17 164
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 Yes
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 17) 9.0 (avg of 145)
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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Kirkland Signature vs Purina Pro Plan: how they compare

Scores

Purina Pro Plan scores higher on KibbleLab, averaging 9.0 out of 10 across 145 scored foods, compared with 8.6 across 17 for Kirkland Signature. Scores apply the same criteria-based rubric to every food, drawn from published veterinary science.

Who makes them

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. Purina Pro Plan is made by Nestlé Purina PetCare, owned by Nestlé S.A., based in St. Louis, Missouri, USA, founded in 2001.

Standards and range

Purina Pro Plan meets WSAVA's published manufacturer criteria, while Kirkland Signature does not. KibbleLab lists 17 Kirkland Signature foods and 164 Purina Pro Plan foods.

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Common Questions

Which scores higher on KibbleLab, Kirkland Signature or Purina Pro Plan?

Purina Pro Plan scores higher: it averages 9.0 out of 10 across 145 scored foods, compared with 8.6 for Kirkland Signature. Scores reflect published veterinary science.

Who makes Kirkland Signature and Purina Pro Plan?

Kirkland Signature is a brand of Costco Wholesale Corporation. Its food is made by third-party co-packers in USA. Purina Pro Plan is made by Nestlé Purina PetCare, which is owned by Nestlé S.A.

Which brand has more products on KibbleLab?

Purina Pro Plan has 164 products in the KibbleLab database, compared with 17 for Kirkland Signature.

Where is each brand based?

Kirkland Signature is based in Issaquah, Washington, USA. Purina Pro Plan is based in St. Louis, Missouri, USA.

Do Kirkland Signature and Purina Pro Plan meet WSAVA criteria?

Purina Pro Plan meets WSAVA's published criteria for evaluating a manufacturer; Kirkland Signature does not, based on public information. WSAVA publishes criteria; it does not certify or endorse brands.

Have Kirkland Signature or Purina Pro Plan been recalled?

Neither Kirkland Signature nor Purina Pro Plan 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: Kirkland Signature and Purina Pro Plan .

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.