De Electric Railway Presidents' Conference Committee was een samenwerkingsverband van diverse Noord-Amerikaanse trambedrijven. Sinds 1929 werkten zij samen met de industrie om het openbaar vervoer per tram te verbeteren. Een van de resultaten was de PCC-tram.^[1]

De volgende vervoersbedrijven waren bij de Electric Railway Presidents' Conference Committee betrokken:

• The Baltimore Transit Co.
• Birmingham Electric Company
• Boston Elevated Railway Company
• Brooklyn & Queens Transit Corp.
• Capital Transit Co. (Washington, D. C.)
• Chicago Rapid Transit Company
• Chicago Surface Lines
• Cincinnati & Lake Erie Railroad Company
• The Cleveland Railway Company
• Honolulu Rapid Transit Co. Ltd.
• Houston Electric Company
• Los Angeles Railway Corp.
• Louisville Railway Company
• The Memphis Street Railway Company
• The Milwaukee Electric Railway & Light Company
• Montreal Tramways Co.
• New Orleans Public Service Inc.
• Northern Texas Traction Co. (Fort Worth)
• Omaha & Council Bluffs Street Railway Company
• Pacific Electric Railway Co.
• Railway Equipment & Realty Co. (Oakland, Cal.)
• Philadelphia & Western Railway Co.
• Pittsburgh Railways Co.
• Public Service Coordinated Transport (N.J.)
• St. Louis Public Service Co.
• Tennessee Public Service Co.
• Toronto Transportation Commission
• Virginia Electric and Power Company

Vanuit de industrie waren de volgende bedrijven aangesloten:

• Aluminium Company of America
• American Brake Shoe & Foundry Co.
• Bethlehem Steel Co.
• The J. G. Brill Company
• Carnegie-Illinois Steel Corp.
• The Cincinnati Car Corporation
• Consolidated Car and Coach Co,
• Cummings Car and Coach Co.
• Electric Service Supplies Company
• General Electric Co.
• Gold Car Heating & Lighting Co.
• National Pneumatic Company
• Ohio Brass Co.
• The Pantasote Company Inc.
• Pullman-Standard Car Manufacturing Co.
• Railway Utility Co.
• S. K. F. Industries Inc.
• The Standard Street Works Company
• St. Louis Car Co.
• The Timken-Detroit Axle Co.
• Tool Steel Gear and Pinion Co.
• Tuco Products Corporation
• Twin Coach Company
• Westinghouse Electric and Manufacturing Co.
• Westinghouse Traction Brake Co.