M.C. Dean, Inc. is a design-build and systems integration corporation for complex, mission-critical organizations. Started in 1949 as a small electrical firm, it has since grown to 3,800 employees and a revenue of approximately $810 million in 2011 It has headquarters in Tysons, Virginia, United States, and over 30 other offices, including branches in Atlanta, Georgia; Baltimore, Maryland; Tampa, Florida; Charleston, South Carolina; Stuttgart, Germany; and Dallas, Texas.