– Moët & Chandon – 2640 (thousand cases @ 9l) (owned by Moët Hennessy, LVMH)
– Veuve Clicquot – 1658 (owned by Moët Hennessy, LVMH)
– Nicolas Feuillatte – 750
– GH Mumm – 600 (owned by Pernod Ricard)
– Piper-Heidsieck – 588
– Laurent-Perrier – 571
– Taittinger – 458
– Lanson – 417
– Pommery – 417
– Perrier-Jouët – 200 (owned by Pernod Ricard)
Which means that LVMH, who owns the top two brands, sells more than all the others on the list put together.
(Source: The Drinks Business)
The top ten sellers add up to 100 million bottles. From memory (and this may not be entirely accurate – we’re on vacation without library access), 300 million bottles are sold each year. If so, the top two LVMH brands (not counting other brands they own) account for 15% of all champagne sales.