Goliath National Bank, "the world leader in credit and banking", is the bank where Barney Stinson is currently working, and Marshall Eriksen used to work at.
Prior to working at GNB, Barney worked at AltruCell Corporation. In 2008, AltruCell acquired GNB in a ruthless takeover that took two months and cost 2000 jobs. Several weeks later, Barney would get Marshall a job in GNB's legal department. Marshall accepted the job even though it did not match with his dream of practicing at a law firm to save the environment. However, because of the high salary he decided to earn money first for his life with Lily (The Best Burger in New York).
GNB is currently involved in constructing a new downtown headquarters. The project was originally scrapped in 2009 after Ted Mosby's architecture firm was selected to do the work. Over a year later, the project was picked up again and Ted was again put in charge.