Who makes Kirkland Signature Scotch Whisky (line: Blended, 12-Year Blended, Islay Single Malt, Highland & Speyside Single Malts)?
As of July 11, 2026, the manufacturer of Kirkland Signature Scotch Whisky (line: Blended, 12-Year Blended, Islay Single Malt, Highland & Speyside Single Malts) is Alexander Murray & Co. (independent bottler), per on-label, first-party, or executive statement evidence.
The common claim
What most answers say — and what the evidence supports
The prevailing answer — Alexander Murray & Co., the Calabasas, California independent bottler founded by Scottish expat Steve Lipp — is correct and unusually well evidenced for a Kirkland product: the Scotch labels themselves credit Alexander Murray (PUNCH, 2017; VinePair, 2026), trade-press profiles document the relationship back to Costco's first Kirkland spirit in 2007 (The Whiskey Wash and Market Watch, 2016), and Forbes stated it directly in 2020. This covers the whole line: blended, 12-year blended, Islay single malt, and the Highland/Speyside releases. What the listicles overstate is the next step — which Scottish distilleries fill Alexander Murray's casks. The company does not disclose its sources beyond regional designations like Speyside or Islay (Forbes, 2020), so every claim tying a specific Kirkland bottling to a famous named distillery is speculation.
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
Profile of Alexander Murray founder Steve Lipp: "In 2007 another giant retailer, Costco, wanted in on the private label game, and notably they selected Lipp to source and label their first Kirkland Signature Brand alcohol: a Single Malt Scotch."
Tier 4
On-label attribution: "Their Scotch labels, meanwhile, typically credit Alexander Murray & Co, one of those aforementioned independent bottlers." Also carries Costco's on-record non-disclosure: "Thank you for asking, but again, we don't disclose how we develop Kirkland Signature" (Annette Alvarez-Peters, Costco assistant general merchandise manager).
Tier 4
"The Kirkland Signature Scotch whiskies are sourced by independent bottler Alexander Murray" — covering the blended NAS, 12-year blended, and Speyside single-malt releases. Also the key limit of the attribution: Alexander Murray "does not disclose where the whisky is sourced except to indicate broad geographic designations like Speyside or Islay."
Tier 4
Beverage-trade feature on Alexander Murray: "supplying the Scotch for Costco's Kirkland house brand starting in 2007"; "Costco sells an estimated 100,000 cases or more a year of its blended Scotch ($20 a 1.75-liter bottle)."
Tier 4
First-party client naming on the bottler's own site (server-rendered text, verified live 2026-07-11): 'Alexander Murray & Co Inc has since worked with Costco, Walmart and Total Wines & More – amongst others – in bringing their own label whisky and spirits requirements to reality.' Names the client relationship rather than a specific Kirkland SKU — corroborates the on-label and trade-press anchors.
Tier 6
Tier-6 recency corroboration alongside the tier-4 anchors: the attribution is still current and still on the bottle as of April 2026 — "Look at any bottle of Kirkland Signature brand Scotch and you'll see the name Alexander Murray & Co. Ltd. The company is both a merchant and independent bottler and it's responsible for Costco's Blended Scotch Whisky, Islay Single Malt Scotch, Highland Scotch, and other limited releases."
Frequently asked
Who makes Kirkland Signature scotch for Costco?
Which distillery makes Kirkland scotch?
Is Kirkland scotch the same as Johnnie Walker or Dewar's?
How long has Alexander Murray supplied Costco?
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