Abstract: A company information disclosure system quickly discloses information about companies listed in a securities exchange with fairness and in an adequate time to enhance the trading of the securities. A transmission server stores a registration program which registers company information while a disclosure time determining program produces a table required for disclosing processes at the time of registration of the company information. The disclosure time determining program uses the registration program by setting the company information disclosure time to be a time determined by adding a predetermined time to a closing time of trading in the securities exchange. A satellite distribution program distributes company information by way of satellite and a server distribution program distributes company information using a terrestrial line.