Since its foundation in 1842, Isidore Leroy has focused on quality, outstanding design and technical innovation. From the 19th century until the early 20th century, the company was the market leader in Franconia and parts of Europe. To this day, the wallpaper manufacturer is part of the country's cultural heritage. Parts of the factory in Saint-Fargeau-Ponthierry were even included in the list of French architectural monuments as a "Monument historique" a few years ago. In his current collections, Isidore Leroy focuses on global trends, but also has parts of his wallpaper classics reworked by young designers in a contemporary way. In addition to traditional printing processes, in the technical development of which the company played a significant role in the 19th century, it now also uses the expanded possibilities of digital printing in production.