thumb|Tysons, a leading business center and one of the nation's largest business districts Tysons, located in the county, is Virginia's largest office market and the nation's largest suburban business district, with of office space. It is the country's 12th-largest business district and is expected to grow substantially in the coming decades. It contains a quarter of the county's total office space inventory, which was as of 2006, representing roughly the same size as the Lower Manhattan region of New York City. In October 2011, Forbes described the area as "the place where the Internet was invented, but today it looks increasingly like the center of the global military-industrial complex", because it is home to the nation's first ISPs, many of which are now defunct, and attracts numerous defense contractors that have relocated from other states to or near Tysons Corner.
thumb|tysons a leading business center and one of the nation's largest business districts tysons located in the county is virginia's largest office market and the nation's largest suburban business district with of office space it is the country's 12th-largest business district and is expected to grow substantially in the coming decades it contains a quarter of the county's total office space inventory which was as of 2006 representing roughly the same size as the lower manhattan region of new york city in october 2011 forbes described the area as "the place where the internet was invented but today it looks increasingly like the center of the global military-industrial complex" because it is home to the nation's first isps many of which are now defunct and attracts numerous defense contractors that have relocated from other states to or near tysons corner