When Paul Sormani dies, his son Paul-Charles, (1848-1926), and his mother Ursule Marie Philippine, born Bouvaist, resume the activity under the name “Sormani Veuve Paul et Fils”, from 1878. The cabinetmaker and ornamentalist Edouard Lièvre collaborates with the house Sormani for the realization of some furniture, some of which were made after the death of Paul Sormani.

In 1914, his son Paul-Charles Sormani teamed up with Thiebault Frères to create a boutique at 134, boulevard Haussmann in Paris.Maison Thiebault-Sormani will exhibit furniture in particular at the International Exhibition of Modern Decorative and Industrial Arts in Paris in 1925: this shop produced high-quality pieces in the Louis XV and Louis XVI styles, lasts until 1934, the date of its closure.

In addition to the many copies of 18th century French furniture, and the production of furniture directly inspired by the styles in vogue under the reign of Louis XV and Louis XVI, Sormani manufactures especially parquet clocks, and many objects such as jewelery boxes, bronze inkwells, boxes for writing or liquor cabinet etc … Some writing case models were perfect replicas of those made by Jean-Pierre Tahan (dimensions, shapes, marquetry …). Many pieces of furniture made by Paul Sormani, are exhibited in the Ajuda National Palace , Ajuda , civil parish of Lisbon , Portugal.