Canadian Broadcasting Corporation | Australian Broadcasting Corporation | Oracle Corporation | International Finance Corporation | Chevron Corporation | Digital Equipment Corporation | News Corporation | Lockheed Corporation | corporation | Hearst Corporation | Scholastic Corporation | Northrop Corporation | Munhwa Broadcasting Corporation | Gibson Guitar Corporation | CBS Corporation | Fender Musical Instruments Corporation | ITT Corporation | Sharp Corporation | RAND Corporation | NCR Corporation | Federal Deposit Insurance Corporation | Sperry Corporation | Singer Corporation | Case Corporation | Science Applications International Corporation | Polaroid Corporation | Multinational corporation | Burroughs Corporation | Bendix Corporation | Olympus Corporation |
In 1981, GTI purchased the Maine Central Railroad from U.S. Filter Corporation, adding the Boston & Maine and Delaware & Hudson railroads in 1983 and 1984, respectively, and in 1998 purchased the brand of bankrupt Pan American World Airways.