A. O. Smith Corporation is a leading diversified provider of innovative, energy-efficient products to heat and clean water. The company is one of the world’s largest manufacturers of residential and commercial water heating equipment and boilers. Its product offering includes gas, electric, propane, and solar water heating designs in a wide range of sizes. In North America, A. O. Smith’s portfolio includes many of the best-known, highly regarded brands in the market, including A. O. Smith, Lochinvar, State, American, and Whirlpool. Altogether, the company markets its water heating products to more than 70 countries around the world, and is one of the leading water heater brands in China and India. Its A. O. Smith water purification appliances are among the fastest-growing brands in China. Research design and development labs are located in the U. S., Canada, China, India, and Europe and employ more than 400 engineers and technicians.