DI.PO. is part of the Mariotti Group, established in 1968 by Giuliano Mariotti.
The Mariotti Group was first established as a centre for the surface finishing of stainless steel flat rolled products.
As of today, the Mariotti Group has three service centres, all located in northern Italy: Sidermariotti, specializes in manufacturing and sale of stainless steel coils and sheets; Dimar, the division for discs and precision coils, located in the Verbano Cusio Ossola industrial district and DI.PO. leading supplier of stainless steel discs.