Some well-known jet boat manufacturers include Weldcraft Marine, Duckworth, Chaparral, Glastron and Yamaha. A wide variety of sizes and styles of jet boats are manufactured by dozens of companies around the world.
Although he never claimed to have invented the concept of water-jet propulsion, Australian Charles William Feilden Hamilton is widely considered the developer of the modern jet boat. According to his biography, Hamilton began working on a water-jet unit in the early 1950s, with the idea of building a boat that could be used in rivers too shallow for propeller-driven boats. The Hamilton jet unit was developed into a successful product that was sold around the world.