We're looking for investors with 'pockets' that are deep enough to pay for the project. [=investors with enough money to pay for the project]
People 'vote their pocketbooks'. [=people vote according to how a candidate or issue will affect their financial situation]
It turned out that they had 'pocketed' [='stolen'] most of the money that was supposed to go to victims of the fire.
(..) Quiet. I have no powers in the Dark Forest. You have to find me someone. Someone who knows it. Someone who can hunt her. You owe me money for my pocket, and money for the girl. I seem to have drunk it all, but you're welcome to it when it comes out again. You've gone too far, I want my money! (..)2012 Snow White and the Huntsman