If you have used Facebook, Snapchat or Instagram, you have helped some of the globe’s most youthful billionaires build their 10-digit fortunes. Meet 10 of the globe’s richest youngsters, as per the ‘Rich List’ prepared by Forbes for 2015.
Bobby Murphy, 26 years old
Net worth: $1.5 billion
Bobby Murphy and Stanford University buddy Evan Spiegel together founded mobile app Snapchat. The company was valued in its latest investment round at $10 billion, with reports in February 2015 that the company had received new funding offers at an eye-popping valuation of $19 billion. Forbes estimates that Murphy has a stake of at least 15%.
Julio Mario Santo Domingo III, 29 years old
Net worth: $2.2 billion
Julio Mario Santo Domingo III is a New York City disc jockey who is one of the four heirs to his namesake grandfather’s Colombian beer fortune. Julio Mario Santo Domingo, who died in 2011, owned Bavaria Brewery but sold it in 2005 for 15% of SABMiller. Forbes obtained new information this year that he left one-sixth of his fortune to his grandson, whose father Julio Mario Jr had died in 2009. Today, Julio Mario Santo Domingo III lives in a $4-million apartment in New York City and spends his time promoting his DJ group Sheik ‘n’ Beik, which throws late-night electronic music parties in Manhattan.
Tom Persson, 30 years old
Net worth: $3 billion
Europe’s youngest billionaire, Tom Persson, is the third generation in the H&M clan, which has five members on the billionaires list. Born in 1985, he just graduated from Met Film School in London, and has moved back to Stockholm to start smaller movie production companies. Tom is the son of Sweden’s richest man, Stefan Persson, chairman of H&M, and brother to Karl-Johan Persson, CEO since 2009.
Anton Kathrein, Jr, 30 years old
Net worth: $1.7 billion
A pioneer in automotive antennas in the 20th century, Kathrein-Werke—Anton Kathrein, Jr is the third generation to lead the company—has become a key player in mobile communications as service providers have expanded their networks to accommodate rapid growth in data traffic and users. With revenue of more than $1.6 billion in 2013, it makes the cables, antennas and receivers that allow cellphone signals to bounce across the world.
Elizabeth Holmes, 31 years old
Net worth: $4.5 billion
Elizabeth Holmes makes her debut on the billionaires list as the youngest self-made woman billionaire. She dropped out of her sophomore year of Stanford University to found Palo Alto, California-based blood testing company Theranos in 2003 with the money she had saved for college. With a painless prick, her labs can quickly test a drop of blood at a fraction of the price of commercial labs, which need more than one vial.
Tatiana Casiraghi, 31 years old
Net worth: $2.2 billion
Tatiana Casiraghi is a billionaire heiress and member of Monaco’s royal family, married to Andrea Casiraghi, who is reportedly second in line to the throne. Although she married into royalty, Tatiana was rich long before her wedding. Her grandfather Julio Mario Santo Domingo had owned Colombian brewery Bavaria before trading it for 15% of SABMiller in 2005. Six years later, he died, leaving one-sixth of his inheritance to Tatiana and an equal amount to her billionaire brother Julio Mario Santo Domingo III, a DJ in New York.
Nathan Blecharczyk, 31 years old
Net worth: $1.9 billion
Nathan Blecharczyk is co-founder and chief technology officer of Airbnb, which lists 1,000,000 homes (or rooms in people’s houses or apartments) for rental stays; 30 million guests have used the service since it launched in 2008. Airbnb raised $450 million in April 2014, valuing the company at $10 billion and Blecharczyk’s stake at $1.5 billion. It’s since inched up in an employee share sale that valued the company at $13 billion in October 2014.