Who makes Kirkland Signature Brut Champagne (NV, Champagne AOC, France)?
As of August 10, 2026, the manufacturer of Kirkland Signature Brut Champagne (NV, Champagne AOC, France) is Manuel Janisson (Champagne Janisson & Fils, Verzenay; estate owned by Moët & Chandon/LVMH since 2019), per on-label, first-party, or executive statement evidence.
The common claim
What most answers say — and what the evidence supports
Explainers (Tasting Table, wine blogs) say Costco's Kirkland Signature Brut Champagne is made by Manuel Janisson of Verzenay, and the evidence supports it: the back label credits 'the top Chardonnay, Pinot Noir and Pinot Meunier vineyards in Verzenay of Manuel Janisson,' the Costco Wine Blog producer roundup names 'Manuel Janisson of Champagne Janisson & Fils in the village of Verzenay,' and it is imported to the US by the negociant DC Flynt MW Domaines & Estates. This is a genuine Product-of-France Champagne AOC bottling from a named Verzenay house, not a bulk supermarket sparkler. One corporate change sits above the attribution: Manuel Janisson sold the Janisson & Fils estate to Moët & Chandon in July 2019, and Gault&Millau's current profile lists it as LVMH-owned since 2019 with Janisson still running the house — the ownership changed, the credited producer did not.
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
Producer roundup names the sparkling wine directly: 'Champagne Brut: Manuel Janisson of Champagne Janisson & Fil in the village of Verzenay,' and notes Janisson & Fil's own-label champagne sells for 1.5-2x the price of Kirkland — a named French producer for Costco's Brut Champagne, not a bottler-of-record alias.
Tier 4
Transcribes the back label: the Signature Series Brut Champagne 'comes from the top Chardonnay, Pinot Noir and Pinot Meunier vineyards in Verzenay of Manuel Janisson' (12% alcohol), and adds that it 'is imported by DC Flynt MW Domaines & Estates' — the label itself credits Janisson's Verzenay fruit, with DC Flynt MW as the US importer/negociant of record (the same importer pattern as Kirkland's Ti Point Sauvignon Blanc).
Tier 4
Trade explainer states the Champagne 'is made by luxury producer Manuel Janisson of Verzenay,' a Grand Cru village — independent tier-4 corroboration of the Costco Wine Blog roundup and the back-label naming.
Tier 4
Specialist Champagne-news report of the July 2019 sale: Manuel Janisson sold the Janisson & Fils estate — 'un domaine viticole de 10 hectares' in Verzenay, plus the maison itself — to Moët & Chandon. The same piece notes his 'champagne Kirkland' produced for 'la chaîne Costco' had drawn US wine-press attention in December 2018, independently naming the brand-producer link. Included as ownership context: the sale changed who owns the house, not who is credited with making the wine.
Tier 4
Current winery-guide profile confirming both halves of the post-sale picture: 'this house, founded in 1923, is run by Manuel Janisson,' who, 'assisted by Cyril Tanazacq,' 'manages a 10-hectare vineyard,' and 'Since 2019, the estate has been owned by LVMH.' The man the Kirkland back label credits still runs the Verzenay house; only the ownership above him changed. A separate company, Champagne Manuel Janisson (SIREN 380138867), also trades under his name, and no source in hand resolves which corporate entity bottles the current Kirkland Brut — noted as the open question, without undermining the producer attribution.
Frequently asked
Who makes Kirkland Signature Champagne?
Is Kirkland Champagne real Champagne from France?
Has Costco always used the same Champagne house for its Brut?
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