Evan Spiegel - Sun Valley

Some of the wealthiest, most successful entrepreneurs take decades to accumulate their fortunes — others strike gold very early on.

A recent report from Hurun, a Shanghai firm that releases yearly rankings and research about the world's richest people, rounded up the latter group of entrepreneurs: self-made billionaires under age 35.

Read on to see who made the list — and just how wealthy they are, as estimated by Hurun:

SEE ALSO: How old 15 self-made billionaires were when they earned their first billion

Evan Spiegel: 25

Residence: Los Angeles, California

Estimated wealth: $1.8 billion

At the ripe age of 25, the Snapchat CEO is the youngest billionaire in the world after launching the popular photo-sharing app with two of his former Stanford classmates.

John Collison: 26

Residence: San Francisco, California

Estimated wealth: $1 billion

The Harvard dropout cofounded Stripe, an online payment company, with his brother Patrick in 2011. The Irish-born brothers now live in San Francisco, where the company is based.

Bobby Murphy: 26

Residence: Venice, California

Estimated wealth: $1.8 billion

Just five years out of college, the CTO of Snapchat is one of the youngest billionaires in the world, along with his Snapchat cofounder Spiegel. The two met during their days as Kappa Sigma fraternity brothers at Stanford.

See the rest of the story at Business Insider