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Kirkland Signature vs Portland Pet Food Company

Kirkland Signature is branded by Costco Wholesale Corporation and made by third-party co-packers, and Portland Pet Food Company is made by Portland Pet Food Company, and both make food for cats and dogs. On KibbleLab, Kirkland Signature averages 8.6 out of 10 across its scored foods, compared with 8.0 for Portland Pet Food Company. Portland Pet Food Company is accredited by the Pet Sustainability Coalition; Kirkland Signature is not.

Kirkland Signature and Portland Pet Food Company compared

Kirkland Signature Portland Pet Food Company
Manufacturer Costco Wholesale Corporation Portland Pet Food Company
Parent company Independent Independent
Founded 1983 2014
Headquarters Issaquah, Washington, USA Portland, Oregon, 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 Oregon
Products listed 17 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 Yes
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) 8.0 (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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Kirkland Signature vs Portland Pet Food Company: how they compare

Scores

Kirkland Signature scores higher on KibbleLab, averaging 8.6 out of 10 across 17 scored foods, compared with 8.0 across 17 for Portland Pet Food Company. 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. Portland Pet Food Company is made by Portland Pet Food Company, an independent maker, based in Portland, Oregon, USA, founded in 2014.

Standards and range

Neither meets WSAVA's published manufacturer criteria. Portland Pet Food Company is accredited by the Pet Sustainability Coalition; Kirkland Signature is not. KibbleLab lists 17 Kirkland Signature foods and 17 Portland Pet Food Company foods.

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Common Questions

Which scores higher on KibbleLab, Kirkland Signature or Portland Pet Food Company?

Kirkland Signature scores higher: it averages 8.6 out of 10 across 17 scored foods, compared with 8.0 for Portland Pet Food Company. Scores reflect published veterinary science.

Who makes Kirkland Signature and Portland Pet Food Company?

Kirkland Signature is a brand of Costco Wholesale Corporation. Its food is made by third-party co-packers in USA. Portland Pet Food Company is made by Portland Pet Food Company.

Which brand has more products on KibbleLab?

Kirkland Signature and Portland Pet Food Company each have 17 products in the KibbleLab database.

Where is each brand based?

Kirkland Signature is based in Issaquah, Washington, USA. Portland Pet Food Company is based in Portland, Oregon, USA.

Are Kirkland Signature or Portland Pet Food Company PSC Accredited?

Portland Pet Food Company is a PSC Accredited business. The Pet Sustainability Coalition is a nonprofit that Accredits pet companies on their environmental and social impact, through third-party verification.

Have Kirkland Signature or Portland Pet Food Company been recalled?

Neither Kirkland Signature nor Portland Pet Food Company 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 Portland Pet Food Company .

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.