The business center in Virginia - Dulles Corner, as the name suggests, is just minutes from Washington Dulles International Airport, and heading in the other direction is only 25 minutes from downtown Washington. The business park stands in Herndon, part of a rapidly-growing hi-tech corridor in Northern Virginia, which is attracting some of the country's largest corporations. There are more than 1,300 business establishments in this zip code alone. In the whole of Fairfax County professional, scientific and technical services are identified as the largest single sector, accounting for more than a quarter of the 33,500-plus businesses - double the size of the next sector - and making it a significant engine for economic growth as well as commercial opportunities for those operating in this immediate geographic area. The Dulles Regional Chamber of Commerce is the largest in the county and boasts a growing membership and helps to facilitate new business contacts.