Boeing

Boeing built the first stage of the Saturn V, and in December 1996 it bought the aerospace and defense business of Rockwell International, which had built the Space Shuttle orbiters. It is NASA’s prime contractor for the International Space Station and builds the core stage of the Space Launch System at NASA’s Michoud Assembly Facility in New Orleans; the larger Exploration Upper Stage it was also building was dropped in NASA’s February 2026 Artemis changes.

Its Starliner capsule was ordered alongside SpaceX’s Dragon in 2014 for $4.2 billion. After a troubled crewed test flight in 2024 it is still not certified to carry NASA crews, and in November 2025 NASA cut the firm order from six flights to four, with two more as options. On September 28, 2026, NASA said an uncrewed Starliner-1 could fly in December 2026 or January 2027, that it intends to exercise the options for a fifth and sixth flight, and that it plans to fly astronauts on Starliner-2 by 2028.

Money from NASA