They are the ones that keep us in business. In short, ill-gained profits were verboten at Koch Industries. His comrade at Number Six? His brother, David. Put an even simpler way: Koch Industries is really, kcoh, really good at making money. How did david koch make his money is what generates good profit. Of course, critics will buy none of what Charles Koch is selling in his book. The anti-establishment Koch political network started to gain steam under hus Republican. They just think the Democrats and their high-spending pals are worse. Advisers are quick to point out that not all of that will be explicitly political.