Sergey Brin, a founder of Google. Position in Forbes 400: 10. Capital: $37.5 billion. Country of origin: Russia.

The year of arrival in the USA: 1979.

Sergey Brin was born in Moscow Jewish family. His parents were mathematics professors. When he was five years old, his family migrated to the USA. In the States, Brin graduated from the University of Maryland with a degree in “Mathematics and computer systems" and then Stanford University. In 1998 Brin and his friend from Stanford University Larry Page set up the Google company.

George Soros, a business magnate, investor, trader. Position in Forbes 400: 19. Capital: $24.9 billion. Country of origin: Hungary.

The year of arrival in the USA: 1956.

At the age of 17 years old George Soros, native Schwartz, moved from Budapest to London, where he attended the London School of Economics. Soros's career as a financier started in 1956, when the future billionaire arrived to New York and began trading securities. Already in 1967, Soros took up a post of a vice president at Arnhold and S. Bleichroeder, a major brokerage company.

Leonard Blavatnik, a founder of Access Industries. Position in Forbes 400: 22. Capital: $18.2 billion. Country of origin: Ukraine.

The year of arrival in the USA: 1978.

The American businessman of Ukrainian-Jewish descent Leonard Blavatnik was born in Odessa, however at the age of 21 years old his family moved to the USA. In America Blavatnik received a masters from Columbia University and an MBA from Harvard Business School. In 1986 he founded Access Industries, providing investments in different industries. The purchase of TNK-BP stocks in the volume of 50% by Blavatnik and his colleague Viktor Vekselberg in half brought him the highest income.

Thomas Peterffy, a founder of Interactive Brokers Group. Position in Forbes 400: 32. Capital: $12.6 billion. Country of origin: Hungary.

The year of arrival in the USA: 1965.

Thomas Peterffy moved to New York City in 1965. At that moment the immigrant from Hungary did not speak English at all. However he worked as a programmer on Wall Street. In 1977 Peterffy bought the slat on the American stock exchange, and in several years he founded Interactive Brokers, one of the first electronic trading companies.

Elon Musk, a billionaire-investor, a founder of SpaceX, X.com., Tesla G. Position in Forbes 400: 34. Capital: $11.6 billion. Contry of origin: RSA.

The year of arrival in the USA: 1990s.

Elon Musk was often included not only in the lists of the world's richest people, but in the tops of the most high-powered ones. According to Jon Favreau, the filmmaker of Iron Man, Elon Musk served as Tony Stark's prototype, played by the famed Hollywood actor Robert Downey Jr. The Musk's company SpaceX develops and manufactures space launch vehicles and also performs as a commercial operator of space assets.

Rupert Murdoch, an owner of media sources, motion picture companies and publishing houses. Position in Forbes 400: 38. Capital: $11.1 billion. Country of origin: Australia.

The year of arrival in the USA: 1985.

Murdoch started his business in Australia. Later he entered the markets of the USA and United Kingdom, where he mainly focused on yellow press. In 1985 Rupert bought the worldwide famous motion picture company “20th Century Fox" and acquired American citizenship. Today the enterpriser is a Chairman and CEO of the News Corp and 21st Century Fox holding companies.

Patrick Soon-Shiong, a chair of the Chan Soon-Shiong Foundation. Position in Forbes 400: 47. Capital: $9.2 billion. Country of origin: RSA.

The year of arrival in the USA: 1980.

Patrick Soon-Shiong is known as the world's richest doctor. During the Second World War his parents emigrated from China to the Republic of South Africa. Later Soon-Shiong himself moved to the USA, where he began surgical training at University of California. Become famous as a surgeon, who had performed the diabetes-treatment known as encapsulated-human-islet transplant, Patrick founded two pharmaceutical companies in 1980.

Jan Koum, a creator of WhatsApp. Position in Forbes 400: 50. Capital: $8.8 billion. Country of origin: Ukraine.

The year of arrival in the USA: 1992.

The billionaire Jan Koum, created the WhatsApp mobile messanger, was born in a small village outside Kiev. At the age of 16 years old he with his mother moved to Mountain View (the United States), where a social support program helped the family to get a small apartment. When he was in school, Koum became interested in computer programming. Finally, he was hired by Yahoo, where he worked over the next ten years. Then he created the app, which turned to be one of the main communicative means among smartphone's owners.

Pierre Omidyar, a founder of EBay. Position in Forbes 400: 54. Capital: $8.1 billion. Country of origin: France.

The year of arrival in the USA: 1973.

When the future billionaire was only 6 years old, Pierre Omidyar's family moved from France to the USA. At the age of 28 years old Omidyar launched his own service called Auction Web. Later the site was renamed into eBay. Omidyar didn't initially plan to make profit by eBay, but it was the auction site that made him rich. In 2013 the businessman announced the creation of First Look Media, which gives support to the journalistic groups making investigations.

Micky Arison, a chairman of Carnival Corporation. Position in Forbes 400: 61. Capital: $7.2 billion. Country of origin: Israel.

The year of arrival in the USA: 1950s.

At the moment Arison is a CEO of the world's largest cruise operator Carnival Corporation and also the owner of the National basketball association's Miami Heat. Carnival Corporation was founded by Micky's father Ted Arison jointly with Meshulam Riklis.