The formal ribbon cutting welcoming the move of Northrop Grumman's world headquarters to Fairfax County. From left are Rep. Jim Moran, Gov. Bob McDonnell, Rep. Gerry Connolly, Northrop CEO Wesley G. Bush, Sen. Mark Warner and Fairfax Board of Supervisors Chairwoman Sharon Bulova. (TOM JACKMAN/THE WASHINGTON POST)

Gov. Bob McDonnell, Sen. Mark Warner, Reps. Jim Moran and Gerry Connolly, Fairfax Board Chair Sharon Bulova, George Mason University President Alan Merten and CBS sportscaster James Brown (huh?) were all there, and Northrop CEO Wesley G. Bush said he was happy to make the move from Century City in Los Angeles to the former Verizon building, just off the intersection of Route 50 and the Capital Beltway.

Northrop had about 20,000 employees in the Washington area, spokeswoman Margaret Mitchell-Jones said, and they brought another 500 to the Fairview Park building. Virginia formally lured Northrop here in April 2010, and Northrop extensively renovated the Verizon building before moving in on Aug. 22.

Northrop Grumman ranks 72nd in the Fortune 500 listing of America’s biggest corporations, with annual revenues of more than $34.7 billion. In Virginia, only Freddie Mac is larger. Northrop is the 21st Fortune 500 company in the state, and the 10th Fortune 500 company in Northern Virginia. The others in NoVa, with their Fortune 500 ranking in parentheses, are: Freddie Mac (20); General Dynamics (86); Capital One (134); AES (150); Computer Sciences (155); SAIC (219); NII Holdings (406); Gannett (415); and Booz Allen Hamilton (438).