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 ex-wife, Melinda, use this money generously to help people world over live a better life.
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.
Described as America’s greatest inventor, Thomas Edison’s legacy is an everlasting one. He was the first to help make the incandescent light bulb commercially viable, even though he was not the first inventor of it. Quadruplex telegraph, phonograph, motion picture camera and the alkaline storage battery are some the many innovations that made him a worldwide phenomenon and an icon.
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.
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.
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'.
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.
8 Tim Cook
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.
10 John McAfee
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.
11 Jim Lovell
Retired American astronaut Jim Lovell commanded the iconic Apollo 13 mission and was one of the first three human beings to fly to the Moon, orbit it, and get back to Earth. He had also been a US Navy captain. Following his retirement, Lovell launched a restaurant in Lake Forest.
Grant Masaru Imahara, a Japanese-American electrical engineer, roboticist, television host and actor, began his career at Lucasfilm, where he got involved with several big budget films including Star War franchise. Later, he joined MythBusters as a member of Build Tea and was well-known for his contribution in it. His other important works include White Rabbit Project, BattleBots, Star Trek Continues etc.
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.
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.
17 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.
19 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.
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.
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.
Claude Shannon was an electrical engineer, mathematician, and cryptographer. He is credited with publishing the article A Mathematical Theory of Communication which gave rise to the field of information theory. Hence, Shannon is considered the father of information theory. He is also credited with founding digital circuit design theory. During World War II, he contributed to the field of cryptanalysis.
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.
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.
26 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.
27 Shahid Khan
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.
29 James Watt
30 Scott Kelly
31 Buzz Aldrin
32 Eric Schmidt
33 Henry Ford
Business magnate and founder of the Ford Motor Company, Henry Ford is credited to have made the automobile an accessible conveyance for Americans in the 20th century. Following the success of his company, he became one of the richest and best-known people in the world. He also became known for his pacifism during the first years of World War I.
Part of the seven Project Mercury astronauts, Gordon Cooper manned a 34-hour space mission, becoming the first American to stay for a day in space. As part of the Gemini 5 mission, he and his co-pilot proved it was possible for astronauts to survive a mission to the Moon and back.
35 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.
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.
Al-Qaeda terrorist and Islamic preacher Anwar al-Awlaki, initially a university lecturer, had been involved in a number of terrorist attack plots, including one in which they had planned to blow up a Detroit-bound airplane. American-born Yemeni Awlaki died in a drone strike ordered by Barack Obama in 2011.
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.
42 Jack Parsons
Born to a lawyer, William Edwards Deming grew up to become a renowned mathematical physicist and later taught statistics at the New York University. His research focused on the application of statistical methods to improve quality control in various industries. His ideas were later widely used by Japanese corporates.
45 John Carmack
Computer-game developer John Carmack introduced pioneering innovations in the 3-D game arena. He specializes in first-person shooter games, such as Quake and Doom. The id Software founder had spent a year in a juvenile home and had later dropped out of university to become a freelance programmer.
46 Alan Parsons
Alan Parsons is an English musician, audio engineer, record producer, and songwriter. He is credited with forming a rock band named The Alan Parsons Project. Over the years, Parsons has won many prestigious awards including a Grammy Award for Best Immersive Audio Album. In the 2021, Parsons was made an OBE for services to music production and music.
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.
Spanish business magnate and civil engineer Florentino Pérez leads Grupo ACS as its CEO. He is also famous as the president of the football club Real Madrid and has the reputation of hiring and firing managers at his will. A self-made billionaire, he brought in the Galácticos era in football.
49 George Hotz
Known online as Geohot, George Francis Hotz is an American security hacker and software engineer, who at the age of seventeen became the first person to hack Apple’s iPhone. Later, he developed iOS jailbreaks and became the first person to crack a defense system in Sony PlayStation 3. Currently, he is working at comma.ai, a startup he founded in 2015.
50 Paul Dirac
English theoretical physicist and Nobel laureate Paul Dirac OM FRS, counted among leading physicists of the 20th century, made fundamental contributions in the early development of quantum electrodynamics and quantum mechanics. He derived the Dirac equation while the modern theory of antimatter began with one of his papers. His book The Principles of Quantum Mechanics remains an influential monograph on the subject.