I started working on pirated software and then I started another business with the money that I had earned from it. Is all my wealth now considered permissible?
It is not allowed to harm people. You need to seek permission or a pardon from the people whom you did harm even by paying them something if they ask to pardon you. Your current income is not Haraam as far as you are not harming any one in your current business.
Wassalam.