Leonard Valve Company Employee Directory
Nonresidential Building ConstructionRhode Island, United States11-50 Employees
Leonard Valve Company is a U.S.-based manufacturer in the nonresidential building construction sector, located in Cranston, Rhode Island. It designs and manufactures water temperature control valves and monitoring devices for domestic hot water systems, with an emphasis on safety and performance. The company traces its origins to 1911, when founder Frederick C. Leonard conceived the thermostatic mixing valve after a hot towel incident, and it is credited with introducing the world's first thermostatic mixing valve. All interior components, assembly, and testing take place in the United States, with hand assembly by skilled union craftsmen. In recent years, Leonard Valve has broadened its offerings to include digital mixing and emergency mixing solutions, such as the Neutron LV-6100-LF introduced in 2022. Operating in the nonresidential building construction space, it focuses on delivering dependable water temperature solutions to contemporary facilities.