Sparkman & Stephens is a naval architecture and yacht brokerage firm with offices in Newport, Rhode Island and Fort Lauderdale, Florida, USA.

The firm offers similar design and engineering services for the performance optimization of existing yachts.

[1] During World War II the company was employed to design the hulls for the invaluable DUKW 'army duck' and the Ford GPA amphibious jeep.

Both entered the marine industry at an early age – Olin apprenticing in yacht design under Philip Rhodes, and Roderick learning shipbuilding at the prominent Nevins Yard in City Island, New York, which would later produce several of his firm's designs.

S&S remains involved in designs having created a range of production sailing yachts such as the Morris 36 and 52 and a number of custom super-sailers including Victoria of Strathern and the 52-meter ketch Nazenin V, recently bestowed with multiple Superyacht of the Year Awards.