Canadian Broadcasting Corporation | Australian Broadcasting Corporation | Oracle Corporation | International Finance Corporation | Chevron Corporation | capital | Australian Capital Territory | Digital Equipment Corporation | News Corporation | Lockheed Corporation | corporation | Hearst Corporation | Scholastic Corporation | Northrop Corporation | Munhwa Broadcasting Corporation | Gibson Guitar Corporation | venture capital | CBS Corporation | Fender Musical Instruments Corporation | Capital (political) | ITT Corporation | Sharp Corporation | RAND Corporation | NCR Corporation | Federal Deposit Insurance Corporation | Sperry Corporation | Singer Corporation | Case Corporation | Science Applications International Corporation | Polaroid Corporation |
Klees also received the single biggest contribution to his campaign to run as leader of the Progressive Conservative Party of Ontario from OPTUS Capital Corporation owned by Silver.