Who makes Kirkland Signature Nut Bars, 1.41 oz, 30-count?
As of July 5, 2026, evidence points to Leclerc Foods USA (Leclerc Group) as the manufacturer of Kirkland Signature Nut Bars, 1.41 oz, 30-count, but no tier 1–3 source names the link directly.
The common claim
What most answers say — and what the evidence supports
Food-media answers (Food Republic and Chowhound, 2025) say Leclerc Foods makes Kirkland nut bars, and the evidence supports them: Costco's own product data names Leclerc Foods USA Inc in the manufacturer field of the exact listing. A parallel folk claim that the bars are a Nature Valley or General Mills product has no support in any tier 1-5 source — the resemblance to Nature Valley Sweet & Salty bars is cosmetic.
Evidence & sources
Every source is graded on the six-tier rubric and archived, so the citation holds even if the original moves or paywalls. The tier badge grades the source; the status grades our confidence in the maker.
Tier 4
Costco's own product data embedded in the listing names 'LECLERC FOODS USA INC' (item-level record, part 1300509) and 'LECLERC FOODS, LTD' (parent record) in its mfName (manufacturer) field for this exact item — the same field Costco exposes publicly as a 'manufacturername' search facet, and whose reliability cross-checks against the Bloomberg-confirmed diapers listing ('FIRST QUALITY CONSUMER PR') and the exec-confirmed batteries listing ('DURACELL DISTRIBUTING INC').
Tier 6
States 'Kingsport, Tennessee-based Leclerc Foods USA manufactures the Kirkland Signature Nut Bars with Cocoa Drizzle & Sea Salt' and that when Costco 'set out to make a Kirkland version of chocolate and nut bars in 2016, it turned to' the family-owned Leclerc Group (Quebec, founded 1905). Unsourced food-media attribution — graded tier 6 — but it names the same company as Costco's own catalog data.
Tier 6
States 'The Kirkland Signature Nut Bars are made by family-owned Leclerc Foods, a Canadian company.' Unsourced, and Chowhound shares a publisher (Static Media) with Food Republic, so this is counted as repetition of the same claim rather than fully independent corroboration.
Frequently asked
Who makes Kirkland Signature nut bars?
Are Kirkland nut bars the same as Nature Valley Sweet & Salty bars?
Are Kirkland nut bars and Kirkland protein bars made by the same company?
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