HUB ZONE: The U.S. Small Business Administration's Historically Underutilized Business Zone (HUBZone) Program helps small businesses gain preferential access to federal procurement opportunities. This link http://www.leesburgva.gov/businesses/hubzone provides all the information you need to understand the benefits of bringing your office to SOS in the Leesburg HUBZone - the only HUBZone in Loudoun County.