2 Kevin Systrom(Co‑founder of Instagram)
Computer programmer and entrepreneur Kevin Systrom is one of the co-founders of the photo-sharing app Instagram. He resigned as the Instagram CEO in 2018. He was named to Forbes’s 30 under 30 list in 2014 and was one of the U.S’s richest entrepreneurs below 40 in 2016.
3 John DeLorean(Engineer Known for His Work at 'General Motors' & Founder of the 'DeLorean Motor Company')
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.
4 Linus Torvalds(Software Engineer, Main developer of the Linux kernel)
5 Martin Cooper(Engineer)

6 Joseph Strauss(Engineer)

Best known for designing the Golden Gate Bridge, engineer Joseph Strauss specialized in movable bridges and developed the concepts of the bascule bridge and the vertical-lift bridge. Born to a pianist mother and a painter-writer father, he later also penned poems such as The Mighty Task is Done.
7 Thomas Massie(Inventor)

Conservative libertarian Republican Thomas Massie is the US Representative from Kentucky's 4th district. Born to a beer distributor, he studied mechanical engineering at MIT and also co-owned a start-up. Amid the COVID-19 pandemic, he earned Donald Trump’s ire when he opposed a stimulus package to boost the American economy.
8 George Meade(Army Officer)
George Meade was a civil engineer and United States Army officer best remembered for decisively defeating Robert E. Lee in the American Civil War. After the war, he played an important role during the Reconstruction era. As a civil engineer, George Meade was involved in the construction of many lighthouses.
9 Sandford Fleming(Engineer)

10 Bjarne Stroustrup(Computer scientist, Engineer, Scientist, Programmer, Writer, University teacher)

Bjarne Stroustrup is a Danish computer scientist best known for his invention and development of the popular C++ general-purpose programming language. He is currently working as a managing director at Morgan Stanley in New York, apart from serving as a visiting professor at the prestigious Columbia University.
11 Alfredo Ferrari(Engineer)

12 Owsley Stanley(key figure in the San Francisco Bay Area hippie movement during the 1960s)

Owsley Stanley was an American clandestine chemist and audio engineer. During the 1960s Stanley played an important role in the Bay Area hippie movement and the counterculture of the decade. As the sound engineer of the Grateful Dead, Stanley developed the band's famous Wall of Sound, one of the largest transportable public address systems ever built.
13 Charles Goodyear(Inventor of Vulcanized Rubber)

Charles Goodyear was an American manufacturing engineer and self-taught chemist who developed vulcanized rubber. He invented the chemical process to manufacture pliable, moldable, and waterproof rubber which revolutionized the automobile industry. In 1976, Charles Goodyear was inducted posthumously into the National Inventors Hall of Fame.
14 Tony Hoare(Computer scientist)

Tony Hoare is a British computer scientist who is credited with developing the sorting algorithm quicksort. He is also credited with developing Hoare logic, a formal system for verifying program correctness. Over the years, Tony Hoare has received several prestigious awards for his contribution to computer science.
15 Jeff Bezos(The Founder & Executive Chairman of Amazon)
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.
16 Ray Dolby(Engineer)

A Stanford engineer and a Cambridge PhD, Ray Dolby had first experimented with electronic gadgets while working part-time for Ampex in his teenage years. The Dolby Laboratories founder later pioneered the surround sound technology in movies and the noise-reduction system in tapes. His honors include an Emmy and two Academy Awards.
17 Scotty Moore(Guitarist, Audio engineer)

18 Hamza Bendelladj(Computer engineer)

19 John Bradfield(Designer of Sydney Harbour Bridge)
John Bradfield was an Australian engineer remembered for envisioning the Sydney Harbour Bridge; he oversaw the design and the construction of the bridge, which is now considered a major landmark in Sydney. He was also associated with many other notable projects, such as the Cataract Dam, Brisbane's Story Bridge, and Burrinjuck Dam. He received many prestigious awards during his lifetime.
20 Joseph M. Juran(Engineer)

21 George Cayley(Engineer)

British engineer and inventor George Cayley was a pioneer of aeronautics and aviation. He designed the world’s first glider that could successfully carry a human being. He was also a prominent Whig and had contributed to the formation of what is now known as the University of Westminster.
22 No Kum-sok(Engineer, Aviator)

23 Marco Minnemann(Drummer)

24 Don Norman(Engineer, Computer scientist, Psychologist, Writer)

25 Tommy Flowers(Technician, Engineer, Computer scientist)

Born to a bricklayer in London’s East End, Tommy Flowers completed his studies in electrical engineering attending night classes while working as an apprentice during the day. He developed Max Newman’s model of a machine that had the potential to decipher German codes and turned it into his Colossus computer.
26 Nevil Shute(Best Known for His Novels, Which Often Have an Aviation Theme)

British-Australian novelist Nevil Shute was also an aeronautical engineer and had fought in World War I. Of the 25 books he had penned throughout his lifetime, On the Beach remains one of the most notable. Most of his works reflected his cynicism regarding humanity in a war-ravaged society.
27 Martin Birch(Sound Engineer)

Initially an audio engineer, Martin Birch, known as a master of hard rock, later produced 10 Iron Maiden albums. He also worked with artists such as Fleetwood Mac and Deep Purple. Interestingly, the cause of his death, at age 71, was not disclosed to the public.
28 Phil Ramone(Recording engineer, Record producer, Composer, Violinist)

Phil Ramone was a South African-born American record producer, recording engineer, violinist, and composer. He is credited with co-founding A & R Recording Inc., which went on to become a major independent studio recording company in the United States of America. He is also credited with introducing optical surround sound for films. Ramone won 14 Grammy Awards during his career.
29 Lynn Conway(Transgender Activist & Computer Scientist Who Initiated The Mead-Conway VLSI Chip Design Revolution)

30 John Garand(Designer)

One of his parents’ 12 children, Canadian-born John Garand moved to the U.S. with his father and siblings after his mother’s death. He went from working in a textile mill as a child to creating the semi-automatic rifle M1 Garand, used widely by the U.S. military in World War II.
31 Gustave Whitehead(Aerospace engineer, Engineer)

32 Krishna Bharat(computer scientist, engineer)

33 Kevin A. Lynch(architect, university teacher)

34 Bruce Fairbairn(Musician, Engineer, Audio engineer, Trumpeter, Record producer, Composer)

35 Hugh Lofting(Author)

Though a qualified civil engineer from MIT, Hugh Lofting is best remembered for writing the Dr. Dolittle series of children’s classics, which created a cult character and also inspired several movies. His only work for adults was the war poem Victory for the Slain, which depicted the futility of war.
36 Rodney Brooks(Roboticist)

Australian-American roboticist Rodney Brooks is known for popularizing the concept of behavioral robotics and making autonomous robots. The Stanford alumnus has also been associated with Carnegie Mellon University and MIT. Allen and Baxter remain two of his most popular intelligent robots. He also designed Cog, a robot meant to learn through interaction.
37 Robin Guthrie(Record producer, Composer, Audio engineer, Songwriter)

Part of the Scottish band Cocteau Twins, Robin Guthrie and his guitar made serious waves in the alternate music scene of the 1980s. He also performed as part of Violet Indiana and has often collaborated with American pianist Harold Budd. He later also stepped into music production.
38 Andrew Coyne(Columnist, Editor)

Andrew Coyne is a Canadian columnist who has worked with popular publications like Maclean's and National Post. He is currently working for The Globe and Mail. In 1994, Andrew Coyne was honored by the Public Policy Forum with the prestigious Hyman Solomon Award for Excellence in Public Policy Journalism.
39 Wael Ghonim(Computer Engineer)

Wael Ghonim is an Egyptian computer engineer and Internet activist best known for his work in the field of social entrepreneurship. In 2011, Ghonim achieved international fame when his emotional interview led to the 2011 Egyptian revolution. The same year, Ghonim was named in Time magazine's 100 most influential people list. He also received the JFK Profile in Courage Award.
40 David Braben(Entrepreneur, Programmer, Engineer, Game designer)

Born to a physicist, David Braben was naturally fond of math and science in childhood. He later turned his childhood love for video games into the video-game company Frontier Developments, best known for its Elite series of games. He has also earned honors such as the OBE.
41 Claude Chappe(Inventor)

42 Étienne Lenoir(Inventor, Engineer)

Étienne Lenoir was a Belgian-French engineer. He is credited with developing the internal combustion engine which was commercialized in sufficient quantities. Lenoir is also credited with inventing such electrical devices as an improved electric telegraph which played a key role during the Franco-Prussian War.
43 Franz Josef Popp(Engineer, Manager, Entrepreneur)

One of the three men who founded the iconic automobile company BMW, Franz Josef Popp was an Austrian engineer. He spearheaded innovative projects such as the production of air-cooled radial engines. Though he later joined the Nazi Party, he was warned for allowing a Jewish doctor treat his family.
44 Yang Xiaobo(Structural Engineer)

Yang Xiaobo had been the mayor of Huangshi and was a qualified structural engineer. He also boasted of an MBA from the U.S. The Chinese Communist Party member, who had also been the president of the Central South Architectural Design Institute, died of COVID-19-induced pneumonia in Wuhan in 2020.
45 Abraham-Louis Breguet(Horologist)

Abraham-Louis Breguet was a French horologist who made several innovations in watchmaking in the course of his illustrious career. Widely regarded as the leading watchmaker of his generation, Breguet's clients included members of the European nobility and leading public figures in France. Counted among the greatest horologists of all time, Abraham-Louis Breguet is credited with founding the popular Breguet company.
46 Winnie Byanyima(Engineer, Politician)

47 Zora Arkus-Duntov(Former engineer whose work on the Chevrolet Corvette earned him the nickname)

48 Madman Muntz(Businessperson)

49 Robert Scoble(Blogger, Writer, Computer scientist, Podcaster)

50 Camille Jordan(Mathematician, Engineer, Professor)

Camille Jordan was a French mathematician best remembered for his influential Cours d'analyse and his foundational work in group theory. He also served as an educator, teaching at prestigious institutions like the Collège de France and École Polytechnique. The asteroid 25593 Camillejordan is named in his honor.