23 Virginia companies on Fortune 500

Twenty-three Virginia companies made this year’s Fortune 500 list of the nation’s largest companies.

The 2013 list included three changes from 2012. Huntington Ingalls Industries Inc., the Newport News-based shipbuilder, joined the list at No. 380. The company formerly was the shipbuilding division of Falls Church-based Northrop Grumman Corp. It was spun off in 2011.

Gone from the list is Amerigroup Corp., which was No. 385 last year. The Virginia Beach-based health management company was acquired by Indianapolis-based health insurer WellPoint late last year.

Also missing from the list was Alliant Techsystems, which was No. 491 last year. The Arlington-based supplier of aerospace and defense products just missed the revenue cutoff this year. The company moved its headquarters from the Minneapolis area to Arlington in late 2011.

Of the 22 companies that repeated on the Fortune list, 15 moved down in ranking this year and seven moved up.

The Virginia companies on the 2013 list include:

No. 31, Freddie Mac, McLean, revenue of $80.6 billion
No. 98, General Dynamics, Falls Church, $31.5 billion
No. 120,  Northrop Grumman, Falls Church, $25.2 billion
No. 127, Capital One Financial, McLean, $23.8 billion
No. 153, AES, Arlington, $18.2 billion
No. 159, Altria Group, Richmond, 17.5 billion
No. 176, Computer Sciences (CSC), Falls Church, $15.9 billion
No. 210, Dominion Resources, Richmond, $13.2 billion
No. 213, Smithfield Foods, Smithfield, $13.1 billion
No. 240, SAIC, McLean, $11.2 billion
No. 247, Norfolk Southern, Norfolk, $11 billion
No. 259, CarMax, Richmond, $10.5 billion
No. 271, Genworth Financial, Richmond, $10 billion
No. 297, Owens & Minor, Mechanicsville, $8.9 billion
No. 346, Dollar Tree, Chesapeake, $7.4 billion
No. 365, Alpha Natural Resources, Bristol, $7 billion
No. 380, Huntington Ingalls Industries, Newport News, $6.7 billion
No. 409, Advance Auto Parts, Roanoke, $6.2 billion
No. 421, NII Holdings, Reston, $6.1 billion
No. 436, Booz Allen Hamilton, McLean, $5.9 billion
No. 448, MeadWestvaco, Richmond, $5.6 billion
No. 453, ITT Exelis, McLean, $5.5 billion
No. 467, Gannett Co., McLean, $5.4 billion