With offices in the nation’s capital, Columbia Enterprises is able to provide planning, management, and construction needs throughout the Washington, DC-metropolitan area.   All sales inquiries can be directed to our sales staff at our main office:   Patricia Ellis Mitchell Columbia Enterprises, Inc. 1018 7th Street, SE Washington, DC 20003-2739 Phone: (202) 547-7979 Fax: (202) 547-4959 Email: pmitchell@columbiaenterprises.com