Tom Mueller, SpaceX's first employee and co-founder alongside Elon Musk in 2002, reflected on the rocket company's trajectory from scrappy startup to aerospace giant. Mueller worked at SpaceX for over two decades, leading propulsion engineering before his departure in 2020.
Mueller's comments arrive as SpaceX approaches a potential public market debut, a milestone that underscores the company's evolution from a venture backed by Musk's early PayPal fortune to a multi-billion-dollar operation. The firm has secured government contracts worth tens of billions through NASA partnerships and Air Force agreements, cementing its role as America's primary commercial spaceflight provider.
SpaceX's Falcon 9 rocket has become the backbone of U.S. national security launch operations and commercial satellite deployment. The Starship program, now in advanced testing phases, represents the company's push toward fully reusable super-heavy lift capability. A public listing would value SpaceX in the $180 billion range based on recent private funding rounds, making it one of the most valuable aerospace companies ever.
Mueller's early contributions focused on rocket engine design, particularly the Merlin and Raptor engines that power SpaceX vehicles. His departure in 2020 came as the company shifted toward Starship development and internal restructuring under Musk's direction.
The aerospace industry has watched SpaceX reshape launch economics. Falcon 9's reusable first stage reduced per-mission costs dramatically compared to traditional expendable rockets. This breakthrough forced competitors like United Launch Alliance and international providers to modernize operations.
Mueller's nostalgic perspective matters because few figures witnessed SpaceX's transformation from Musk's Mars ambition to operational dominance in both government and commercial spaceflight markets. His institutional memory bridges the era when the company nearly collapsed after failed launches to today's status as the world's most-launched orbital rocket.