SpaceX Eyes Historic IPO as Rocket Lab Scales Orbital Ambitions

SpaceX has reportedly filed a confidential IPO, positioning the aerospace and AI giant for what could be the largest initial public offering in history. With a rumored valuation of $1.75 trillion, the company's transition to public markets would mark a pivotal moment for the commercial space industry. The company has seen explosive growth, with revenues climbing from $2.3 billion in 2021 to an estimated $18.5 billion in 2025, representing a four-year compound annual growth rate (CAGR) of 68%. This growth is primarily driven by the Starlink satellite constellation and Falcon rocket launch services, serving a diverse client base including NASA and the U.S. Department of Defense. Despite a reported $8 billion net profit in 2025, SpaceX's recent acquisition of xAI, the firm behind the Grok generative AI platform, has reportedly impacted its profitability for the current year. The company currently operates over 10,000 Starlink satellites and has completed more than 600 rocket launches. Rocket Lab (RKLB) remains a key competitor, focusing on smaller payloads with its Electron rocket and preparing for the launch of the heavier Neutron rocket by the end of this year. The company is evolving into an end-to-end space provider by expanding its Space Systems segment and Photon satellite bus platform. Financial trajectories for the two firms differ in scale but show consistent growth. Rocket Lab's revenue grew from $62 million in 2021 to $602 million in 2025, with analysts projecting a climb to $1.6 billion by 2028 and a return to profitability in 2027. Both companies command high premiums; SpaceX's rumored valuation implies a multiple of 95 times its 2025 sales, while Rocket Lab's $40 billion market cap represents 66 times its most recent annual sales.