Maritime Directory

Walpole,, MA, United States

Bird-Johnson Company, part of Rolls-Royce, specializes in the design and manufacture of naval propellers and naval propulsion systems for the US Navy and international navies.

Ravensburg, Germany

Sulzer Hydro GmbH (now ANDRITZ Hydro) in Ravensburg, Germany manufactures Escher Wyss controllable pitch propellers for naval and merchant ships, and develops hydropower solutions for renewable energy.