Complete Guide to All Elon Musk Companies

Tesla designs and manufactures electric vehicles, energy storage systems, and solar products. Under Musk, who joined as chairman and became CEO in 2008, Tesla launched the Roadster, Model S, Model X, Model 3, Model Y, and Cybertruck — transforming the global automotive industry. The Full Self-Driving software program and Optimus humanoid robot represent Tesla's AI and robotics ambitions.

SpaceX was founded with the explicit goal of making humanity a multi-planetary species. The company created the first privately developed liquid-fueled rocket to reach orbit (Falcon 1), the first private company to send a spacecraft to the ISS (Dragon), and the first to land an orbital rocket booster for reuse (Falcon 9). Starship is its next-generation fully reusable rocket designed for Moon and Mars missions.

xAI is Musk's AI company, founded after his public split from OpenAI's board. Its flagship product Grok is an AI assistant integrated into X with real-time access to social media data. The Colossus supercomputer in Memphis, with over 100,000 Nvidia H100 GPUs, powers Grok's training. xAI's stated mission is "to understand the true nature of the universe" through maximum truth-seeking AI.

Musk acquired Twitter for $44 billion in October 2022 and rebranded it X. He envisions transforming it into an "everything app" combining social media, payments, video, and services — modeled on WeChat. X Payments is under development with money transmission licenses in multiple US states. The platform has over 600 million monthly active users.

Neuralink develops implantable brain-computer interface chips. The N1 chip, implanted by the R1 robotic surgeon, places 1,024 electrode threads in the brain cortex to record neural signals. The PRIME clinical study began in January 2024 with paralyzed patients using the device to control computers through thought. The longer-term vision is high-bandwidth human-AI neural integration.

The Boring Company builds lower-cost tunnels for underground transportation. Its operating Las Vegas Loop carries Tesla vehicles between stations under the Las Vegas Convention Center and Strip. The Prufrock tunnel boring machine aims to reduce tunneling cost by an order of magnitude. Multiple US cities are in various stages of contracting for Boring Company underground transit systems.