The Stilwater 1st National Bank is owned by The Syndicate and is the only location in Stilwater which appears in Saints Row: The Third. It is the area where the first mission, When Good Heists Go Bad, takes place. Three of the top floors and the rooftop of the bank are the only accessible areas of this building. It's filled with Syndicate gang members and bankers.
Despite running Stilwater between Saints Row 2 to Saints Row: The Third, neither the Saints nor Ultor, whom they have partnered with, noticed that another criminal organization was operating in the city.
In the mission When Good Heists Go Bad it is possible to get out of there, parachute to the ground, and roam around "Stilwater", which is a 1km square island located south-west of Yearwood.