Who makes Kirkland Signature Energy Shot, 2 fl oz, 48-count?
No reliable public evidence identifies the manufacturer of Kirkland Signature Energy Shot, 2 fl oz, 48-count as of July 5, 2026.
The common claim
What most answers say — and what the evidence supports
Because the Kirkland Signature Energy Shot copies the 2 oz 5-Hour Energy format and blend of caffeine, B vitamins, and amino acids, shoppers widely assume it is 5-Hour Energy (Living Essentials) rebottled, or a generic copy from an unnamed contract packer. No reliable public evidence identifies the manufacturer: recall databases, the NDC/Drugs@FDA route (which dead-ends for supplements), federal court records, Costco's own pages, and retail listings all fail to name a maker, and food-media coverage only compares the price to 5-Hour Energy without claiming a shared producer.
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.
FDA food recall database (openFDA food/enforcement API) July 5, 2026
Searches of product_description for 'energy shot' + 'kirkland' returned no Kirkland energy-shot recall; the matches were unrelated products (a '4HB Stack' bedtime supplement, an Amrita energy bar, an Inked Mango energy drink). No co-packer surfaced via the recall route.
CPSC recall database (SaferProducts.gov) July 5, 2026
Energy shots are FDA-regulated dietary supplements, outside CPSC jurisdiction; the handful of 'Kirkland' CPSC recalls on file are unrelated non-beverage items. No maker identified.
FDA NDC directory / Drugs@FDA (deterministic drug-code route) July 5, 2026
The Kirkland energy shot is marketed as a dietary supplement, which carries no NDC labeler code and no ANDA sponsor, so the NDC-to-ANDA join that resolves Kirkland OTC drugs dead-ends here (per the research recipe). No maker identified.
CourtListener / RECAP federal court records July 5, 2026
The only opinion surfaced by 'kirkland' + 'energy shot' is Innovation Ventures, LLC v. Custom Nutrition Laboratories, LLC (E.D. Mich. 2017, 256 F. Supp. 3d 696). The 'Kirkland' token is the law firm Kirkland & Ellis (counsel), not the product; the case concerns a non-compete covenant over 5-Hour Energy's formula and never names Costco/Kirkland or identifies who makes the Kirkland energy shot. No litigation names a co-packer.
Costco.com product-detail page manufacturer field (via Wayback Machine; costco.com blocks automated fetch) July 5, 2026
Costco's 'mfName' catalog field appears only on the new-format (/p/-/) product pages, which are not captured in the Wayback Machine for this item; the archived legacy PDPs (2017-2024) carry no manufacturer field. Costco discloses no maker.
Retail listings and supplement databases (Amazon, Open Food Facts, quality-supplements.org, Fooducate) July 5, 2026
Every accessible listing shows 'Distributed by Costco Wholesale' only; none names a manufacturer or co-packer. Open Food Facts lists Kirkland/Costco with no producer field.
News and food-media sweep; ImportYeti (US customs) July 5, 2026
Coverage (e.g. Daily Meal) frames the Kirkland shot as a cheaper alternative to 5-Hour Energy but names no maker. ImportYeti is bot-blocked and structurally weak for a domestically produced supplement. No maker identified.
Frequently asked
Who makes Kirkland Signature energy shots for Costco?
Is the Kirkland energy shot just 5-Hour Energy?
Did a lawsuit reveal who makes Kirkland energy shots?
Get notified when a Kirkland manufacturer changes
Suppliers switch quietly and most sites never notice. We track the changes and log the day a maker moves — the same tracking that powers the change log.
Change-log newsletter · no spam · unsubscribe anytime.