Kirkland Signature · Pet

Who makes Kirkland Signature Dental Chews (Grain-Free, 72-count)?

Unknown No tier 1–5 source names the maker

Manufacturer

Not established

Citable fact

No reliable public evidence identifies the manufacturer of Kirkland Signature Dental Chews (Grain-Free, 72-count) as of July 5, 2026.

Verified July 5, 2026

The common claim vs. the evidence

What most answers say — and what the evidence supports

Most 'who makes Kirkland dental chews' pages settle on Mars Petcare — the company behind Greenies — reasoning from how closely the two chews match in shape, ingredients, and marketing, and from Mars production sites near the addresses printed on the bag. It is a reasonable guess, but no tier 1-5 evidence supports it: the packaging says only that the chews are made in the United States, Costco's pet FAQ credits Diamond Pet Foods with the dry foods alone (not the treats), no recall or registry names a co-packer, and the chew is absent from the VOHC accepted-products list that would name its submitter. The current maker is not publicly established.

The honest part

Evidence & sources

Costco does not disclose its suppliers, and no tier 1–5 source names the maker of this product. Below is the documented search — every database and record we checked, and what each one returned.

What we checked — 7 databases & records on July 5, 2026

FDA / CPSC / FSIS recall sweep (Kirkland dental chews / dog treats, all years) July 5, 2026

No recall names a maker for the dental chews. CPSC 'Kirkland' recalls (SaferProducts API, queried 2026-07-05) return only unrelated products (Valdobbiadene Prosecco bottle recall Nov 2025, furniture, mugs, saute pans). FDA openFDA food-enforcement 'Kirkland' returns 29 records — all foods (salmon, eggs, butter, cold brew, peanut butter, frozen produce, madeleines) and none a dental chew or dog treat. The recall route surfaces no co-packer.

Costco own pet FAQ (kirkland-signature-pet-faqs.html) July 5, 2026

Costco credits Diamond Pet Foods with 'all of the dry foods' only; the FAQ is silent on treats and dental chews, so the popular 'Diamond makes it' answer does not extend to the chews. The dry-food attribution must not be inherited here.

Costco.com PDP mfName / manufacturername facet (Wayback) July 5, 2026

The archived product page for Kirkland Signature Dental Chews (Costco item 100234581, 2025-08-09 snapshot: https://web.archive.org/web/20250809095825/https://www.costco.com/p/-/kirkland-signature-dental-chews-72-count/100234581 ) exposes no manufacturername/mfName field; live costco.com blocks automated fetches — reading the live PDP facet is a browser follow-up for Ian.

Veterinary Oral Health Council (VOHC) accepted-products registry July 5, 2026

No Kirkland or Costco dental chew appears on the VOHC accepted-products list (checked 2026-07-05, archived https://web.archive.org/web/20260706025514/https://vohc.org/accepted-products/ ); Greenies is listed under 'Greenies-Mars PetCare.' A VOHC listing would name the submitting company, but Kirkland's chew is not VOHC-accepted, so this route names no maker.

Trade press / consumer explainers (QuerySprout, RV and Playa, Marketing Scoop, Mighty Munch) July 5, 2026

Every 'who makes Kirkland dental chews' explainer states the maker is unconfirmed and that Costco keeps its supplier secret; QuerySprout (archived https://web.archive.org/web/20260119121759/https://querysprout.com/who-makes-kirkland-dental-chews/ ) notes the packaging says the chews are made in the United States. None names a co-packer.

Community rumor scan (Greenies / Mars Petcare) July 5, 2026

The dominant guess is Mars Petcare (maker of Greenies), argued from similar shape/ingredients, the shared VOHC-seal category, and Mars facilities near addresses printed on the packaging (Kansas City, MO and Columbus, OH). Plausible on those grounds, but tier 6 — no recall, label, or company statement corroborates it, and neither Costco nor Mars has confirmed it.

ImportYeti (US customs / bill-of-lading) July 5, 2026

No reliable match: dental chews for a US private label are domestically produced and Costco masks shipments via freight forwarders, so customs data yields no co-packer.

Frequently asked

Who makes Kirkland Signature dental chews?

No reliable public evidence identifies the maker. Costco's own pet FAQ credits Diamond Pet Foods with the dry foods only, which does not cover the treats, and a documented sweep of FDA/CPSC recalls, the VOHC accepted-products registry, Costco's product page, and trade press turned up no company. The packaging states only that the chews are made in the United States. The most common guess — Mars Petcare, the company behind Greenies — rests on product similarity, not on any recall, label, or disclosure.

Are Kirkland dental chews the same as Greenies?

That is unverified. The two are strikingly similar in shape, texture, ingredient list, and dental claims, which is why shoppers assume a shared maker, and Mars (Greenies' parent) runs plants near the addresses on the Kirkland bag — but similarity is not proof. No recall, product label, VOHC listing, or company statement connects Greenies' manufacturer to the Kirkland chew, so treat the 'same as Greenies' claim as an unverified comparison.

Does Diamond Pet Foods make the Kirkland dental chews too?

There is no public evidence that it does. Costco's pet FAQ limits its Diamond Pet Foods statement to 'all of the dry foods,' and dental chews are a treat, not a dry kibble — a separate product line with its own supply chain. The 2012 Diamond recall and Costco's FAQ both stop at the dry foods, so the Diamond attribution should not be carried over to the chews.

Have Kirkland dental chews ever been recalled?

No Kirkland dental chew recall appears in FDA or CPSC records (checked July 5, 2026). The FDA food-enforcement database lists 29 Kirkland recalls, all for foods like salmon, eggs, butter, and coffee — none a dog treat — and the CPSC 'Kirkland' recalls are unrelated non-food items. Because no recall has named a co-packer, that route has never exposed who makes the chews.

Prefer the name brand? Greenies Original Dental Dog Treats The closest name-brand equivalent to this Kirkland Signature product.

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Who makes Kirkland Signature Dental Chews (Grain-Free, 72-count)?

The common claim

What most answers say — and what the evidence supports

Evidence & sources

Frequently asked

Get notified when a Kirkland manufacturer changes

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