Champagne Charles Simon is the brand of two friends, Davy Dosnon and Simon-Charles Lepage. Dosnon studied viticulture and winemaking and has been working at several different champagne houses. He eventually inherited some vineyards from his grandfather, and in 2005 he was joined by his friend, Simon-Charles Lepage. The two decided to put their minds together to create a new champagne house, intended to express the terroirs of their native region.  Their vineyards in Celles-sur-Ource with mainly Kimméridgens as soil, are less than an hour's drive north of Chablis. This puts them closer to the Burgundy region than to the rest of the Champagne region.

Predominantly limestone with sedimentary rock composed of chalk, marl and limestone.