The Galleria Financial Center is occupied by many financial institutions such as Merrill Lynch, UBS AG, Citigroup, law offices, financial services companies and energy trading companies. The other two office buildings are Post Oak Tower, and the Galleria Tower. Additionally, the Williams Tower is also connected to the mall. See also List of largest shopping malls in the United States References External links Simon Property Group Shopping malls established in 1970 Shopping malls in Houston 1970 establishments in Texas