Leading American technologist, business leader and philanthropist, Bill Gates is the co-founder of the world’s largest software company, Microsoft. His passion for computers made him one of the richest in the world and through his charity foundation, Bill & Melinda Gates Foundation, he and his wife use this money generously to help people world over live a better life.
Alexander Graham Bell was a scientist, inventor, and engineer. He is credited with inventing the first functional telephone. He is also credited with co-founding America's major telephone company AT&T, which has been going strong since 1885. Bell's later life was marked by his groundbreaking work in aeronautics, hydrofoils, and optical telecommunications. He was also an ardent supporter of compulsory sterilization.
Satya Nadella is an Indian-American business executive, currently serving as the chief executive officer of Microsoft. Since he became CEO, the company has seen a 27% annual growth rate. Born in India to a Telugu-speaking family, Nadella serves as an inspiration to millions of Indians who nurse 'The American Dream'.
Shiva Ayyadurai is an Indian-American engineer, scientist, and entrepreneur. He gained recognition after claiming to be the inventor of email, which is widely disputed even today. His claim is based on a software called EMAIL, which he wrote while studying at Livingston High School in the late-1970s. He is also known for his unfounded medical claims, including treatments for COVID-19.
5 Tim Cook
John McAfee is an English-American businessman and computer programmer. He is credited with founding one of the most popular software companies of all time, McAfee Associates, which specializes in producing enterprise security software. After leaving the company, which is now owned by TPG Capital and Intel, John McAfee went on to found other companies like Tribal Voice and Future Tense Central.
Widely recognized as one of the two important pioneers of the personal computer revolution, Steve Wozniak is credited with co-founding Apple Inc. along with Steve Jobs. Not surprisingly, he has been described as one of the men that changed the course of history through technology. Apart from being a programmer and technology entrepreneur, Steve Wozniak is also a well-known philanthropist.
John DeLorean was an American inventor and engineer. Highly regarded for his work at General Motors, John DeLorean was an influential figure in the US automobile industry. He is credited with founding the popular American automobile manufacturer, The DeLorean Motor Company. DeLorean’s life inspired a couple of documentary films, including Framing John DeLorean where he was played by Alec Baldwin.
11 Elon Musk
Entrepreneur, engineer and industrial designer, Elon Musk, is famous as founder of the electronic payment firm PayPal, and the SpaceX spacecraft company. He is also the CEO of Tesla Motors. Elon Musk has plans to revolutionize transportation on earth as well as to space through futuristic technology.
English civil engineer, Isambard Kingdom Brunel, is considered "one of the most ingenious and prolific figures in engineering history." Considered a major figure of the Industrial Revolution, he built docks, a series of steamships, and many important bridges and tunnels. He was placed second in a BBC public poll to determine the "100 Greatest Britons" in 2002.
14 Nikola Tesla
Inventor, engineer and futurist, Nikola Tesla, is best remembered for his contribution to the development of the modern alternating current (AC) electricity supply system. A prolific inventor, he had around 300 patents for his inventions. Even though he earned a considerable amount of money, he had poor money management skills and died a poor man.
An Italian astronomer, engineer, and physicist, Galileo Galilei is widely regarded as the father of observational astronomy, the father of the scientific method, the father of modern physics, and the father of modern science. He is credited with popularizing the telescope, which changed the course of history.
The first person to walk on the Moon, Neil Armstrong was an astronaut and aeronautical engineer. Prior to his trip to the Moon, he became NASA's first civilian astronaut to fly in space. After resigning from NASA, he taught in the Department of Aerospace Engineering at the University of Cincinnati. He was a Presidential Medal of Freedom awardee.
17 Jack Dorsey
As the co-founder and CEO of Twitter, Jack Dorsey continues to influence the lives of millions around the world. Also a well-known philanthropist, Dorsey is credited with funding 600 public school projects in Missouri. A prolific donator, Jack Dorsey has donated $24 million as part of various relief efforts. He also donated $10 million to Boston University.
18 Jeff Bezos
The founder and CEO of the multi-national technology company Amazon, Jeff Bezos is the wealthiest man in the world. Jeff, who left his lucrative job at an investment firm to fulfil his entrepreneurial ambition, also owns the newspaper, The Washington Post, and its affiliate publications along with a spaceflight company, Blue Origin.
20 James Watt
22 Jim Lovell
Dustin Moskovitz is an Internet entrepreneur. He is credited with co-founding the popular social networking service, Facebook. In 2008, he co-founded a web and mobile application called Asana after quitting Facebook. One of the youngest self-made billionaires of all time, Dustin Moskovitz is also renowned for his philanthropic activities; he co-founded a philanthropic organization called Good Ventures in 2011.
Sundar Pichai is the CEO of Google and its parent company Alphabet Inc. An alumnus of IIT, Stanford and Wharton, Pichai has come a long way, from innovating Google’s products such as Chrome, Google Drive and Google Apps to leading the software giant and being one of the most sought-after names in the tech industry.
Soviet cosmonaut Vladimir Komarov was the first from his country to fly into space twice. He died when his Soyuz 1 capsule crashed while re-entering the Earth, due to a parachute failure, on April 24, 1967, which made him the first human to die in a space flight.
27 Kim Dotcom
Kim Dotcom is a German-Finnish internet entrepreneur and political activist. He first gained fame in the 1990s as an internet entrepreneur. He is the founder of the now-defunct file hosting service Megaupload. He is a controversial person and was once convicted on charges of computer fraud. He loves music and has released one album and a few singles.
28 Eric Schmidt
A Central Intelligence Agency (CIA) employee who came into the limelight after leaking confidential information from the National Security Agency (NSA) in 2013, Edward Snowden has been variously called a “hero", “whistle-blower", and “traitor". A controversial figure in USA, he was granted asylum in Russia, where he now lives with his wife.
Ferdinand Porsche was an Austrian-German automotive engineer. He is credited with founding one of the most popular car companies in the world, Porsche AG. He is also credited with creating the Lohner-Porsche mixed hybrid, the first gasoline-electric hybrid vehicle. During World War II, Porsche was a prominent contributor to the German war effort.
34 Sid Meier
38 Gene Kranz
39 Scott Kelly
41 Jan Koum
Jan Koum is a Ukrainian American computer programmer and entrepreneur. He is credited with co-founding the popular cross-platform messaging service, WhatsApp. One of the most popular billionaires around the world, Koum donated almost $556 million to the donor-advised community foundation, Silicon Valley Community Foundation, in 2014.
42 Tim Sweeney
Scottish inventor, electrical engineer, and innovator, John Logie Baird, is best known for demonstrating a working TV system in 1926. He then went on to invent the first viable purely electronic color TV picture tube and founded the Baird Television Development Company. He was inducted into the Scottish Engineering Hall of Fame in 2015.