The world's richest man and Microsoft co-founder Bill Gates tops the list of "100 Richest People In Tech", released by Forbes earlier this month.

The net worth of Gates stood at $79.6 billion. He has been selling his shares in Microsoft since he left the company board in 2014.

"Less than 13% of his estimated fortune now comes from Microsoft stock," Forbes said.

Almost all the 100 top billionaires in the world of technology are "self-made", with only a few of them inheriting fortunes from their family members. The net worth of these 100 tech billionaires stood at $842.9 billion.

"The average age of the group is 53, which is a decade younger than the average age of all billionaires; 15 of the 100 are under age 40," it says.

Wipro chairman Azim Premji (net worth of $ 17.4 billion) and HCL founder Shiv Nadar ($ 14.4 billion) are the only Indian businessmen who featured among the top 20 in the list. Premji stood at 13th spot in the list followed by Nadar.

Premji, who was the "most generous Indian' of 2014", has allocated an additional 18 percent of the stake he holds in the company for philanthropy, taking his total contribution for charity to more than 50 percent.

Here is the list of top 10 billionaires in technology:

1. Microsoft's Bill Gates

Bill Gates
Microsoft co-founder Bill Gates plays table tennis during the Berkshire Hathaway annual meeting weekend in Omaha, Nebraska May 3 2015Reuters

2. Larry Ellison, co-founder of Oracle

Ellison is the second richest person in tech with a net worth of $50 billion. He is currently the executive chairman and CTO of Oracle.

Larry Ellison
Oracle's executive chairman of the board and chief technology officer Larry Ellison gestures while giving a demonstration during his keynote address at Oracle OpenWorld in San Francisco, California September 30 2014Reuters

3. Jeff Bezos, founder and CEO of Amazon

Bezos is an American technology entrepreneur with a fortune of $47.8 billion. He played a key role in making Amazon one of the leading online retailers in the world.

Jeff Bezos
Amazon president, chairman and CEO Jeff Bezos speaks at the Business Insider's "Ignition Future of Digital" conference in New York City on 2 December 2014Reuters

4. Mark Zuckerberg, co-founder of Facebook

Zuckerberg is one of the five co-founders of social networking site Facebook and holds a net worth of $41.2 billion. He is currently the chairman and CEO of the site.

Mark Zuckerberg
Facebook CEO Mark Zuckerberg speaks during his keynote address at Facebook F8 in San Francisco, California March 25, 2015.Reuters

5. Larry Page, co-founder Google

The co-founder and the current CEO of search engine giant Google, Larry Page, is the fifth richest person in tech with a net worth of $33.4 billion. Recently, Page has announced the formation of parent company for Google, Alphabet.

Larry Page
Larry Page, CEO of Google. Net Worth - 29.4 BillionReuters

6. Sergey Brin, co-founder Google

Sergey Brin is one of the two co-founders of Google. His net worth stood at $32.8 billion.

Sergey Brin
Google Inc co-founder Sergey Brin arrives on the red carpet during the 2nd Annual Breakthrough Prize Awards at the NASA Ames Research Center in Mountain View, California, November 9, 2014.Reuters

 7. Jack Ma, Alibaba

Jack Ma is a Chinese tycoon, who is the founder and executive chairman of Alibaba Group. His fortune stands at $23.2 billion.

Jack Ma
Alibaba Group's executive chairman Jack Ma looks on ahead of a working dinner with Russia's President Vladimir Putin and heads of the largest foreign companies and business associations at the St. Petersburg International Economic Forum 2015 (SPIEF 2015) in St Petersburg, Russia, June 19, 2015.Reuters

8. Steve Balmer

Balmer is the former CEO of Microsoft, holding a personal wealth of $22.7 billion.

Steve Balmer
Los Angeles Clippers' new owner Steve Ballmer is introduced at a fan event at the Staples Center in Los Angeles, California August 18, 2014.Reuters

9. Laurene Powell Jobs

Powell Jobs is the widow of Steve Jobs, co-founder and former CEO of Apple Inc, with a net worth of $21.4 billion.

Laurene Powell Jobs
Laurene Powell Jobs, founder and chair of Emerson Collective and widow of the late Apple founder Steve Jobs, and Los Angeles Mayor Antonio Villaraigosa (R) take part in a panel discussion titled "Immigration Strategy for the Borderless Economy" at the Milken Institute Global Conference in Beverly Hills, California April 29, 2013.Reuters

10. Michael Dell

Michael Dell is the co-founder and CEO of Dell, one of the world's top personal computer manufacturers. His net worth stood at $19.4 billion.

Michael Dell
Michael Dell, chief executive of Dell Inc, delivers his keynote speech at the All Things Oracle OpenWorld Summit in San Francisco, California September 25, 2013.Reuters