• CBS, Playboy, CocaCola, ABC, Camel Cigarettes, Windows
• US Sprint/Sprint^, Travelers, Apple, Nike, AT&T, Chrysler
• Warner Brothers, White-Westinghouse, Chase, Intel, Pizza Hut, McDonalds
• Xerox, Adobe, IBM, General Electric, Internet Explorer, Bell Laboratories^
• United Airlines, Shell, Adidas, NBC, Pepsi, Compaq

Edit^

• Credit to atomicbocks for being there first
• Small note here; while bell labs had retained the logo, BellSouth and providers in Canada also used the logo.