From New York he went to
Chicago as Western Manager of
Edison Company where he remained until the Edison Company was merged with the
Thomson-Houston Electric Company to form what is now the
General Electric Company. The
North American Company, which had just been organized, had acquired an electric lighting interest in
Cincinnati, Ohio, and Beggs went to Cincinnati in charge of these interests. The North American Company shortly afterward acquired the electric railway and lighting companies in
Milwaukee, Wisconsin, and for several years, Beggs divided his time between these cities. In 1897, the Cincinnati interests were sold and Beggs moved to Milwaukee to devote his time to the utilities there. In 1903, The North American Company began to acquire electric lighting interests in
St. Louis, Missouri. Beggs first visited St. Louis as an advisor, and then began to divide his time between the two cities. At one time, Beggs was president of the St. Louis electric lighting company, the gas company, and the street railway company, as well as president and general manager of
The Milwaukee Electric Railway and Light Company. While Beggs was president of the Milwaukee Companies, he built the
Public Service Building in Milwaukee. His funeral services would be conducted in its auditorium by the
Employees' Mutual Benefit Association. He also constructed the
interurban railways radiating from Milwaukee. By 1911, Beggs had acquired a controlling interest in the
St. Louis Car Company. He resigned from the Milwaukee companies and moved to St. Louis. He still maintained many business connections in Milwaukee and spent time there, although his residence was in St. Louis. ==Beggs Isle==