The corporate headquarters is located on 26 acres in McLean Virginia. The project includes a 14 story Class A office tower and an attached 11 story parking garage with 1500 spaces. The office tower is concrete and steel structure with curtain wall and precast facade. The office floors are supplied by a pressurized under floor HVAC system. In addition to office floors, the facility includes cafeteria, fitness center, health center, conference and training facilities, soccer and baseball fields and basketball and tennis courts.