Hi, I used to live in Bergamo (in Lombardia, north Italy), and the Pesenti bike shop is in the centre of town and was my old LBS. It's a family run shop, one of the older guys was an ex-pro, same sort of set up as many Italian bike shops.
It's a small but high end shop now, but back then they used to export their frames, my LBS (Ciclos Uno in Essex) used to stock them, and they had the same design logo as the frame in the pictures. IIRC they used to farm out production of the frames rather than actually make them - not that this is a bad thing, the Pesenti frame that I saw was very tidy.
If you ever want to visit the shop and ride your Pesenti on home ground, I'd recommend riding the Gran Fondo Gimondi: it starts in Bergamo, and takes in some great (hard, but not killer) climbs in the nearby pre Alps. When I rode it, Gimondi and his old adversary Merckx rode, and I passed them (with great respect) out on the road