According to Davilla and Soltan's excellent
French Aircraft Of The First World War, approximately 3,500 SPAD VII's were built between 1916 and 1919.
The lack of clarity over the total number produced is due to the number of companies producing the VII, poor record keeping, double counting (irregular) of refurbished VII's and (in some instances) poor quality control resulting in completed aircraft being refused as suitable for front line service number.
The manufacturer's involved in the production of the SPAD VII were SPAD, Bleriot, Les Ateliers d'Aviation L. Janoir, Societe d'Etudes Aeronautiques (SAE), Les Ateliers de Construction Regy Freres, Les Ateliers de Construction d'Appareils d'Aviation Roger Somer, Gremont Aeronautiques, Mann Egerton & Co, Bleriot (aeronautiques Ltd of Brooklands, Kellner et ses Fils and Construction Aeronautique Edmond de Marcay.
It was the latter company that would continue SPAD VII production well into 1919.