The Companies of George Westinghouse

This list from The Library of Congress detailing Westinghouse holdings and associated companies indicate how global the industrial interests of George Westinghouse had become by 1904, when, despite a general economic malaise, he was arguably at the peak of his power.

The Westinghouse Air Brake Co.
The Union Switch and Signal Company
The Westinghouse Electric & Manufacturing Company
The Westinghouse Machine Company
Westinghouse Church Kerr & Co.
Cooper Hewitt Electric Company
Sawyer-Man Electric Company
R. D. Nuttall Company
Nernst Lamp Company
Pittsburg Meter Company
Canadian Westinghouse Company, Limited
The American Brake Company
The Westinghouse Automatic Air and Steam Coupler Company
The Westinghouse Brake Company, Ltd., London, England
The Westinghouse Brake Company, Ltd., Hanover, Germany
The Westinghouse Company, Ltd., St. Petersburg, Russia
Societe Anonyme Westinghouse, France
The Bryant Electric Company
The Perkins Electric Switch Manufacturing Company
The British Westinghouse Electric & Manufacturing Company, Ltd.
The Westinghouse Electricitats-Actiengesellschaft