The type was also produced by the Nieuport-Macchi company of Varese, Italy, which built almost 900 HD.1s between 1917 and 1919; more than the parent firm.
Lietadlo bolo vyrábané firmou Nieuport-Macchi z Varese v Taliansku, ktorá medzi rokmi 1917 a 1919 vyrobila takmer 900 ks, čo bolo viac než materská firma.