Born in 1946, From 1962 to 1964 he worked as Technical Department Manager at Besana Mobili, from 1966 to 1971 he worked as Research and Development Department Manager at Boffi Cucine, in this period he took part in the European standardization process of sizes in cabinets and built-in household appliances for kitchens and he developed E15, AL15, Xila kitchen and A1 wardrobe. He took part in Corporate Image and Communication, working also on products presentation realising: photograph settings, stands, Boffi corner shops and exhibitions. He played a leading role in Image and Communication, he dealt with products presentation through photograph settings, the creation of display areas and of the so-called 'Spazio Boffi' inside shops and through the organization of different exhibitions. In 1971 he became partner in the Buttura, Massoni and Pelizza Studio, which was then transformed into A&D. With Luigi Massoni he designed products, showrooms, stand and exhibition for leading Italian furnishing companies such as: Boffi, Poltrona Frau, Nazareno Gabrielli, Iter Selenova, Cadel, Poliform, Porro, Matteograssi.
In 1991 he set up his own studio 'PIERGIORGIO CAZZANIGA DESIGN' in Lentate sul Seveso working principally with: Porro, Composit, Atlantis, Living Divani, Liv'it, Dema, Tagliabue, Acerbis International, MDF Italia, La Palma, Tribù, Desalto and Andreu World.
In 1995 MARIPOSA chair won “Chair of the Year” award at “International Chair Exhibition” in Udine and the “Jury Award” at BIO 15 in Lubjana. In 2001 armchair Bloom for Living Divani and in 2004 M1 and Lofty chairs for MDF Italia where selected for I-DOT. In 2004 Lips armchair for Dema won the 'Good Design Award' of the Chicago Athenaeum of Design. INSIDE furniture system and BORA BORA sofa system both for MDF Italia were awarded with “Best System Category” in 2006, the first, and “Nomination” in 2008, the second, at the “Interior Innovation Award” in Cologne. TENSE table system was selected for 2010 ADI Design Index. Some of his last designs: TOUCH kitchen for Composit, TENSE and STEEL table systems for MDF Italia, table family REVERSE for Andreu World, SOAP chair and armchair and KOBE chair system for Desalto.