SpaceX IPO Filing Reveals $11 Billion Starlink Revenue and a Bet on Space-Based Solar Power

SpaceX is targeting a valuation of $1.75 trillion on the Nasdaq Stock Market as it moves toward what could be one of the largest initial public offerings in history, with a newly released S-1 filing laying out the company's sprawling revenue streams and its founder's vision for relocating data center infrastructure to orbit.

The filing, released last week, shows that SpaceX's Starlink satellite internet service generated more than $11 billion in revenue in 2025, forming the backbone of what the company describes as its "Space and Connectivity segments," which contributed the substantial majority of consolidated revenue both for the full year 2025 and the three months ended March 31, 2026.

The rocket launch and space missions business — encompassing Falcon 9, Falcon Heavy, and Dragon services for commercial and government customers — brought in approximately $4 billion last year.

A third segment, xAI, which operates Elon Musk's artificial intelligence platform Grok along with data centers in Memphis, Tennessee, and Southaven, Mississippi, contributed $3.2 billion in revenue in 2025.

The breadth of those business lines is already complicating a question that investors and analysts are beginning to examine: which S&P sector will SpaceX ultimately call home. When a company lists publicly, financial data firms S&P Global and MSCI assign it to one of 163 sub-industries, which rolls up through 74 industries and 25 industry groups before landing in one of 11 broad sectors. Representatives for both firms have said that while revenue is the primary driver of classification, "earnings and market perception, however, are also recognized as important and relevant information for classification purposes."

Given Starlink's dominant revenue contribution, SpaceX appears most likely to land in the S&P Communication Services Sector, which currently includes Alphabet, Meta, Netflix, AT&T, Verizon, Charter Communications, Walt Disney, and Echostar — a company that holds between 2% and 3% of SpaceX. The Industrials Sector, which houses aerospace and defense names including Boeing, GE Aerospace, Northrop Grumman, and General Dynamics, remains a secondary candidate.

The data center question adds further complexity. The S&P Real Estate Sector currently claims three major data center companies — Equinix, Digital Realty Trust, and Iron Mountain — but a space-based data center operation, should SpaceX execute on its stated ambitions, would not occupy land in the conventional sense, potentially warranting a different classification.

The filing makes an explicit case for orbital infrastructure, arguing that "SpaceX is uniquely positioned to deploy and operate data centers in orbit that can eventually achieve a lower cost than terrestrial data centers over time" owing to its vertically integrated model spanning launch, satellite manufacturing, and network connectivity.

Underpinning that argument is SpaceX's position on solar energy. The company contends that space-based solar arrays can generate more than five times the energy of terrestrial installations, a figure it attributes to continuous, 24-hour illumination. The filing contains repeated references to what SpaceX describes as "terawatt-scale annual AI compute growth" — a demand projection the company believes current terrestrial infrastructure cannot satisfy.

That framing stands in contrast to the energy strategy of xAI's existing ground-based data centers, which have relied on natural gas turbines, with plans to spend an additional $2.8 billion on fossil fuel-powered generation. SpaceX has separately disclosed that xAI spent $697 million over the last two years on Tesla Megapacks for peak load management, while SpaceX itself spent $131 million on 1,279 Cybertrucks — illustrating the financial entanglement across Musk's corporate portfolio.

Analysts note that the economics of orbital data centers remain formidable. Power costs for Starlink satellites are multiples higher than those of terrestrial facilities, radiation hardening for chips adds significant expense, and it remains unclear whether AI training workloads can be effectively distributed across multiple satellites.

With a Nasdaq listing potentially weeks away, the scale of SpaceX's ambitions — and the unresolved questions around sector classification, energy strategy, and orbital feasibility — are likely to remain central to how investors price the offering.

Disclaimer