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 |
Tozen has a number of local unions at different workplaces, including: The Japan Times, Linguaphone, Philippine National Bank, Syndicat des Employés de l’Institut franco-japonais, Lyceé franco-japonais, Sophia University, Gaba, Japan College of Foreign Languages, Shibaura Institute of Technology, and Simul Academy.