specifically excluded. Government agencies Government agencies directly employ around 714,100 Virginians , almost 17% of all employees in the state. Approximately twelve percent of all U.S. federal procurement money is spent in Virginia, the second-highest amount after California. , 125,648 active-duty personnel, 25,404 reservists, and 99,832 civilians work directly for the U.S. Department of Defense at the Pentagon or one of 27 military bases in the state, representing all major branches and covering . Another 139,000 Virginians work for defense contracting firms, which received $44.8 billion worth of contracts in the 2020 fiscal year. Virginia has the second highest concentration of veterans of any state with 9.7% of the population, as many stay in the state and the Hampton Roads area in particular, which is home to world's largest navy base and only NATO station on U.S. soil. Other large federal agencies in Northern Virginia include the Central Intelligence Agency in Langley, the National Science Foundation and U.S. Patent and Trademark Office in Alexandria, the U.S. Geological Survey in Reston, and the U.S. Fish & Wildlife Service in Bailey's Crossroads. Virginia's state government employs over 106,000 public employees, who combined have a median income of $52,401 , with the Departments of Education and of Transportation being the largest by expenditure. Business Based on data , Virginia is home to 204,131 separate employers plus 644,341 sole proprietorships. Of the 144,431 registered non-farm businesses , 59.4% are majority male-owned and 22% majority female-owned, and 19.6% are majority minority-owned and 8.9% are veteran-owned. Twenty-one Fortune 500 companies are headquartered in Virginia , with the largest companies by revenue being Freddie Mac, General Dynamics, Northrup Grumman, and Capital One. The largest by their number of employees are Dollar Tree in Chesapeake and Hilton Worldwide Holdings in McLean. Virginia has the third highest concentration of technology workers and the fifth highest overall number among U.S. states , with the 451,268 tech jobs accounting for 11.1% of all jobs in the state and earning a median salary of $98,292. Many of these jobs are in Northern Virginia, which hosts a large number of software, communications, and cybersecurity companies, particularly in the Dulles Technology Corridor and Tysons Corner areas. Amazon additionally selected Crystal City for its HQ2 in 2018, while Google expanded their Reston offices in 2019. Virginia became the world's largest data center market in 2016, with Loudoun County specifically branding itself "Data Center Alley" due