Is it permissible to invest in the shares of companies that deposit their money in usurious banks, knowing that the interest from these banks is considered a corrupt contract?

It is not permissible to buy shares in a company that invests its money in interest-based banks. If someone bought shares in a company without knowing that it invests its money in interest-based banks, and then came to know about it, he must withdraw from this company. If he cannot withdraw, then he is obligated to dispose of the amount of unlawful profit, if he knows it, or to make an effort to determine it if he does not know it precisely.