Westinghouse Electric was founded by George Westinghouse in Pittsburgh, Pennsylvania, on January 8, 1886. The firm became active in developing electric infrastructure throughout the United States. The company's largest factories were located in East Pittsburgh Pennsylvania, and Lester, Pennsylvania and in Hamilton, Ontario, where they made turbines, generators, motors, and switch gear for generation, transmission, and use of electricity. In addition to George Westinghouse, early engineers working for the company included Frank Conrad, Benjamin Garver Lamme, Bertha Lamme (America’s first woman mechanical engineer), Oliver B. Shallenberger, William Stanley, Nikola Tesla, Stephen Timoshenko and Vladimir Zworykin.