Who Actually Makes the Kirkland Vodka

Walk through any Costco warehouse and a curious commercial fact begins to emerge. The Kirkland-branded paper towels, almost certainly, are made by Procter & Gamble or Georgia-Pacific. The Kirkland-branded golf balls are made by Titleist. The Kirkland-branded laundry detergent is reportedly made by Henkel. The Kirkland-branded coffee was, for years, made by Starbucks. The Kirkland-branded vodka is made by — the question is one of the more popular guessing games in American consumer industry — somewhere in France, by a process that produces a quality of vodka that many independent reviewers prefer to Grey Goose, retailing for less than a third the price.

The Kirkland Signature brand, in 2024, generated approximately seventy billion dollars of revenue for Costco, slightly more than a quarter of the company's total. The brand is one of the largest private-label businesses on earth. It is, in many product categories, the largest single line item by sales volume in American retail. And it is, almost without exception, manufactured by the same companies that supply Costco's branded competitors — at roughly the same factories, on roughly the same production lines, often during the night shifts that the branded version doesn't quite fill.

The Arbitrage. The economic logic of a private label, executed at scale, is a particular kind of margin arbitrage between the manufacturer and the retailer. A branded consumer product carries roughly thirty percent gross margin to the manufacturer and a further ten to fifteen percent margin to the retailer. A private-label version of the same product, made by the same manufacturer, carries lower gross margin to the manufacturer (perhaps fifteen percent) but higher margin to the retailer (perhaps twenty percent). The total margin in the value chain is roughly the same; the distribution changes. The retailer captures more, the manufacturer captures less per unit but more volume, and the customer pays roughly thirty percent less than the branded equivalent. Everyone is, by some accounting, better off — but only at the volumes that Costco can produce, and only with the supplier discipline that Costco enforces.

The Discipline. Costco does not publish its supplier list. It is unusually aggressive in negotiating contract terms, including audit rights over manufacturing processes, the ability to demand price reductions when commodity costs fall, and contractual provisions that allow the company to switch suppliers without long notice. The company famously will refuse to carry a branded product if it cannot negotiate a private-label arrangement on acceptable terms for the same category. The result is a kind of perpetual implicit auction between branded incumbents and private-label challengers, with Costco's buyer team adjudicating in favor of the price that lets the warehouse stay below the company's eleven-percent markup ceiling.

The Customer Trust Layer. What makes Kirkland different from other private-label brands is the cultivated reputation for quality parity with — or, in many categories, superiority to — the branded equivalent. Costco's buyer team is unusually rigorous about blind taste tests, durability tests, and side-by-side comparison reviews. Kirkland golf balls have been reviewed favorably against Pro V1s by independent golf publications. Kirkland diapers have been reviewed favorably against Pampers. Kirkland coffee against Starbucks. Kirkland tequila against Patrón. These comparisons are, mostly, accurate — because the supplier is often the same and the production tolerance is held nearly identical to the branded line.

The strategic effect, accumulated over decades, is that Kirkland sits in the mind of the Costco member not as a generic discount alternative but as a quality signal. The member who buys a Kirkland product is not, in this framing, settling for less. They are, in this framing, defecting from the branded version because the brand premium has been revealed to them as overhead.

This is also why no competitor has been able to clone the model at full scale. The membership architecture (which selects for customers willing to do their own quality verification), the markup discipline (which keeps the price gap visible), the supplier relationships (which depend on volumes only Costco produces), and the brand consistency (which compounds across decades of slow trust-building) are mutually reinforcing in a way that resists piecemeal replication. The hot dog stays $1.50. The rotisserie chicken stays $4.99. The Kirkland vodka, somewhere in France, keeps coming.