The same seven businessmen make up the Maryland contingent of billionaires on the 2015 Forbes 400 list, although their standing on the list has changed since last year.

Developer Ted Lerner retains the highest placing, while Under Armour found Kevin Plank climbed to second place. And the owners of the Washington Redskins and Baltimore Ravens both saw their net worth rise, even if the fortunes of their NFL teams didn't fare so well.

There are no new aces at the top of the country's billionaire heap: Microsoft co-founder Bill Gates, Berkshire Hathaway's Warren Buffett and Oracle's Larry Ellison are the leaders. Again.