Matteo Nunziati, the designer with a penthouse at 432 Park Avenue

Few addresses say New York like 432 Park Avenue — and one of its penthouses is his work. Matteo Nunziati, based in Milan and active on four continents, designs luxury residences and hospitality from Manhattan to Doha: clients include Aston Martin, Qatar Airways, Marriott International and the Trump Organization, with a Good Design Award from Chicago (2019) and a Red Dot (2022) along the way.

At i4Mariani his signature turns corporate: Blade, a complete office system with clean geometric lines, plus the Elle bookcase and Kate sofas. La Mercanti carries the range for U.S. executive projects — Park Avenue polish, office hours.