Tesla pulled in over $570 million in revenue last year from deals with Elon Musk's other companies, including xAI and SpaceX, according to a recent regulatory filing. This interconnected web of business relationships shows how Musk's various ventures are becoming increasingly dependent on each other, raising questions about how these financial ties will evolve as SpaceX prepares for a major public offering.

Where Is Tesla Getting This Revenue From Musk's Companies?

The bulk of the money came from xAI, which paid Tesla $430.1 million in 2025, primarily for Megapack energy-storage deployments. SpaceX contributed $143.3 million, largely from vehicle purchases, including a reported $100 million worth of Cybertrucks bought in the fourth quarter alone. Tesla also recognized an additional $78.1 million in revenue from xAI through February 2026.

These figures were revealed in an amended filing that corrected Tesla's original annual report. The SpaceX contribution was notably absent from the initial January filing, only appearing in the updated version released in April. This level of revenue concentration from related parties is significant for Tesla shareholders, as it represents a meaningful portion of the company's overall business activity.

How Are These Companies Becoming More Intertwined?

• SpaceX-xAI Merger: In February 2026, SpaceX acquired xAI as a subsidiary, consolidating AI infrastructure, satellite technology, and rocket manufacturing under one parent company, which deepens Tesla's ties to both entities.
• Energy Storage Partnerships: xAI purchases Tesla's Megapack systems to power its AI data centers, creating an ongoing commercial relationship that benefits both companies' growth strategies.
• Vehicle Integration: Tesla has integrated Grok, xAI's AI chatbot, directly into its vehicles, while SpaceX continues to purchase Cybertrucks for its operations and logistics needs.
• Semiconductor Collaboration: Musk has outlined plans for Tesla and SpaceX to collaborate on semiconductor production, potentially creating additional revenue streams and operational efficiencies across the portfolio.
• Stock Conversion: Tesla's planned $2 billion investment in xAI Holdings was converted into Class A common stock of SpaceX after the merger, giving Tesla a direct ownership stake in the parent company.

The February merger between SpaceX and xAI represents a watershed moment for Musk's business empire. By bringing AI infrastructure, satellites, and rockets under one roof, the move creates a more unified ecosystem where Tesla can serve as both a customer and a strategic partner. Tesla maintains ongoing commercial, licensing, and support agreements with these entities that span vehicle purchases, Megapack deployments, and consulting arrangements.

What Does This Mean for Tesla's Financial Performance?

The revenue from Musk's companies helped boost Tesla's margins in ways that might not be immediately obvious to casual investors. Analysts flagged that much of Tesla's first-quarter income included non-recurring items, including tariff recognitions and warranty reserve adjustments that lifted gross margins by approximately $480 million. While these one-time gains are separate from the ongoing revenue from xAI and SpaceX, they highlight how Tesla's financial picture is becoming more complex and interconnected.

Tesla reported adjusted earnings per share of $0.41 for the quarter, beating consensus estimates of $0.36, while revenue of $22.39 billion came in line with expectations. However, the reliance on related-party transactions and one-time gains raises questions about the sustainability of these margins going forward.

What's Next for Musk's Business Ecosystem?

The most significant development on the horizon is SpaceX's anticipated initial public offering, which could become one of the largest listings on record. SpaceX's dual-class share structure is reportedly designed to preserve Musk's control after the listing, ensuring he maintains decision-making power even as the company goes public.

Meanwhile, xAI is expanding its capabilities. The company recently launched "Imagine agent mode," a new beta feature within Grok that pushes the chatbot beyond standard conversation into more autonomous, generative creative territory. The feature is available to Grok users on X Premium and represents xAI's effort to compete with more advanced AI systems from competitors like OpenAI and Anthropic.

Additionally, the Pentagon has expanded its AI partnerships to include SpaceX, which now operates under xAI as a subsidiary. The Department of Defense signed new agreements with eight major technology companies, including SpaceX, to accelerate the transformation of the US military into an "AI-first fighting force." While SpaceX's specific role in these contracts remains unclear, the military's embrace of AI technology could create new revenue opportunities for the companies in Musk's portfolio.

Tesla shareholders are watching closely as these interconnected relationships evolve. The company's 22% stake in SpaceX, acquired through the conversion of its xAI investment, could become significantly more valuable if SpaceX's IPO proceeds at the valuations some analysts expect. However, the concentration of Tesla's revenue from related parties also introduces risks; any disruption to xAI's operations or SpaceX's growth could directly impact Tesla's financial performance.

" }