What is "pommery"

Champagne Pommery is a French Champagne house located in Reims. The house was founded as Pommery & Greno in 1858 by Alexandre Louis Pommery and Narcisse Greno with the primary business being wool trading. Under the guidance of Alexandre's widow, Louise Pommery, the firm was dedicated to Champagne production and soon became one of the region's largest Champagne brands. Pommery is currently owned by the Vranken company (located in Épernay), which also has Heidsieck & Co Monopole and Demoiselle in their portfolio.