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Authority vs Nulo

Authority is branded by PetSmart LLC and made by third-party co-packers, and Nulo is branded by Nulo, Inc. (owned by Apax Partners) and made by third-party co-packers, and both make food for cats and dogs. On KibbleLab, Authority averages 8.7 out of 10 across its scored foods, compared with 8.4 for Nulo. Authority's maker dates to 1986, while Nulo's launched in 2009.

Authority and Nulo compared

Authority Nulo
Manufacturer PetSmart LLC Nulo, Inc.
Parent company Independent Apax Partners
Founded 1986 2009
Headquarters Phoenix, Arizona, USA Austin, Texas, 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 Co-packer
Made in United States United States
Manufacturing region Not listed Midwest and Southern regions
Products listed 64 288
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 .
8.7 (avg of 64) 8.4 (avg of 288)
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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Authority vs Nulo: how they compare

Scores

Authority scores higher on KibbleLab, averaging 8.7 out of 10 across 64 scored foods, compared with 8.4 across 288 for Nulo. Scores apply the same criteria-based rubric to every food, drawn from published veterinary science.

Who makes them

Authority is a brand of PetSmart LLC, based in Phoenix, Arizona, USA, founded in 1986. Its food is made by third-party co-packers in United States. Nulo is a brand of Nulo, Inc., owned by Apax Partners, based in Austin, Texas, USA, founded in 2009. Its food is made by third-party co-packers in United States.

Standards and range

Neither meets WSAVA's published manufacturer criteria. KibbleLab lists 64 Authority foods and 288 Nulo foods.

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Common Questions

Which scores higher on KibbleLab, Authority or Nulo?

Authority scores higher: it averages 8.7 out of 10 across 64 scored foods, compared with 8.4 for Nulo. Scores reflect published veterinary science.

Who makes Authority and Nulo?

Authority is a brand of PetSmart LLC. Its food is made by third-party co-packers in United States. Nulo is a brand of Nulo, Inc., which is owned by Apax Partners. Its food is made by third-party co-packers in United States.

Which brand has more products on KibbleLab?

Nulo has 288 products in the KibbleLab database, compared with 64 for Authority.

Where is each brand based?

Authority is based in Phoenix, Arizona, USA. Nulo is based in Austin, Texas, USA.

Have Authority or Nulo been recalled?

Neither Authority nor Nulo 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: Authority and Nulo .

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.