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.
(..) I got to pay tax on the car. Repair... ...maintenance, kids pestering you to take them for a ride all the time. Then if you figure your tax wrong, you pay out of your own pocket. I tell you! Uncle Sam! He puts his hand in your shirt and squeezes your tit till it's purple. -Getting himself killed. (..)1994 The Shawshank Redemption