The U.S., which through history has been home to rags-to-riches entrepreneurs rannging from Andrew Carnegie to Oprah Winfrey, dominates a newly compiled list of the world’s wealthiest self-made billionaires.

With Microsoft co-founder Bill Gates, net worth $85.7 billion, at the top, the land of Horatio Alger is represented 14 times among Wealth-X’s list of the world’s 25 wealthiest self-made billionaires.

The combined wealth of the Americans on the list is $514.2 billion, about $2 billion greater than the GDP of Norway.

Berkshire Hathaway chairman Warren Buffet is second, with $70.1 billion, followed by Spanish fashion magnate Amancio Ortega with $65 billion.

After Gates, the tech sector is well represented by names such as Oracle CEO Larry Ellison, in fourth place at $51.5 billion; Amazon CEO Jeff Bezos in sixth place with $39.8 billion; and Facebook CEO Mark Zuckerberg in eighth place with $35.3 billion.

The top 10:

1 Bill Gates United States $85.7 bil.
2 Warren Buffett United States $70.1 bil
3 Amancio Ortega Spain $65 bil
4 Larry Ellison United States $51.5 bil
5 Ingvar Kamprad Sweden $48.1 bil
6 Jeff Bezos United States $39.8 bil
7 Carlos Slim Mexico $35.4 bil
8 Mark Zuckerberg United States $35.3 bil
9 Wang Jianlin China $35.2 bil
10 Michael Bloomberg United States $33.7 bil