Sentence:  These plans , like du Pont 's contained provisions for passing the vote on du Pont 's General Motors shares on to the ultimate stockholders of du Pont , Christiana , and Delaware , except that officers and directors of the three <WSD>companies</WSD> , their spouses , and other people living in their households , as well as other specified persons , were to be totally disenfranchised . 
Meaning of the word marked with <WSD> tags:  an institution created to conduct business