• 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.

Long time lurker first time poster here!

The first column second row is the old Sprint PCS logo.