The SPAD (Societe pour l’Aviation et ses Derives) concern, although headed by Louis Bleriot, operated as a separate organisation from the Societe Bleriot-Aeronautique until 1921, when SPAD was absorbed and the subsequent progeny of its design team became officially known by the title of Bleriot SPAD.
Bleriot-SPAD joined SNCASO in 1937.