By the late 19th century, Lanson was supplying champagne by royal appointment to the courts of the United Kingdom, Sweden and Spain.
Lanson remains a purveyor of champagne to the British royal family and retains the Royal warrant of appointment (United Kingdom) which currently depicts the coat of arms of Elizabeth II on its bottles.
The champagne house remained family owned until 1980, when it was sold by Etitenne and Pierre Lanson to the Gardinier Group.
It changed hands several times until 1994, when it was purchased by Marne et Champagne (which renamed itself Lanson International).
The Boizel-Chanoine Group also make "private label" champagne for several UK supermarkets and independent retailers.