CAPITAL BUILDING, Inc. is a Domestic Business Corporation registered in the state of DC. The business was filed on 09/30/1958 and is currently listed as Active - In Good Standing. The official file number for this entity is 580301. The registered agent on file is C T Corporation System, located at 1015 15TH STREET NW, Washington, DC, 20005. The principal office address is located at 10205 Cavanaugh Farm Way, Rockville, MD, 20850.