Engineers

Sergei Korolev was the anonymous 'Chief Designer' of the Soviet space program, his identity concealed by state secrecy until his death in 1966. He designed the R-7, the world's first intercontinental ballistic missile, then repurposed it to launch Sputnik, send Yuri Gagarin into orbit, and establish Soviet dominance in the early Space Race. Korolev's engineering genius and relentless drive delivered every major Soviet space first, from the first satellite to the first spacewalk.

Notable: OKB-1 Soyuz (Rocket)

Maxime Faget designed the Mercury capsule's blunt-body heat shield, the insight that made human spaceflight survivable by using atmospheric drag for deceleration rather than fighting it. He was the principal designer of the Mercury spacecraft and a key contributor to the Gemini and Apollo capsules that followed. Faget later championed the straight-wing orbiter concept that influenced the early Space Shuttle design, capping a career that shaped every American crewed spacecraft from 1961 to 1981.

Notable: North American Aviation Apollo Command/Service Module

SpaceX

Notable: SpaceX Falcon 9

Harrison 'Stormy' Storms led the design of the Apollo Command and Service Module at North American Aviation, the spacecraft that carried astronauts to the Moon and back. He had previously managed the X-15 programme, producing the hypersonic research aircraft that reached the edge of space and informed the design of every subsequent re-entry vehicle. The Apollo CSM he oversaw was arguably the most complex crewed vehicle of its era, requiring innovations in heat shield technology, life support, and guidance that pushed engineering to its limits.

Notable: North American Aviation Apollo Command/Service Module

Wernher von Braun was the father of the American space program and the architect of the Saturn V, the rocket that carried astronauts to the Moon. A former V-2 engineer at Peenemuende, he surrendered to American forces in 1945 and became the driving force behind NASA's Marshall Space Flight Center. As its first director, von Braun transformed wartime rocketry into the most ambitious peaceful engineering programme in history, culminating in six successful lunar landings.

Notable: NASA Saturn V

Grumman

Notable: Grumman Apollo Lunar Module

Valentin Glushko was the premier rocket engine designer of the Soviet Union, responsible for the propulsion systems that powered nearly every major Soviet launch vehicle from the R-7 to Energia. His RD-107 and RD-108 engines launched Sputnik, Gagarin, and every Soyuz mission -- accumulating a flight record unmatched in rocketry. After decades as Korolev's rival, Glushko eventually led the Energia-Buran programme, the Soviet answer to the Space Shuttle, producing the most powerful rocket engine ever built, the RD-170.

Notable: OKB-1 Soyuz (Rocket)

Peter Beck founded Rocket Lab in New Zealand and designed the Electron launch vehicle with its Rutherford engine, the first electric-pump-fed rocket engine to reach orbit. By using 3D-printed engine components and electric turbopumps instead of traditional gas generators, Beck produced a small launch vehicle that dramatically reduced the cost and complexity of reaching space. Rocket Lab has become the leading dedicated small-satellite launcher, proving that orbital access does not require the resources of a superpower or a billionaire's fortune.

Notable: Rocket Lab Electron

SpaceX

Notable: SpaceX Starship / Super Heavy