Elon Musk
Every Company Elon Musk Runs in 2026 (and What Each One Does)
Tesla, SpaceX, xAI, Neuralink, The Boring Company and X — a clear, current map of Elon Musk’s companies, what they build, and how they connect.
Elon Musk runs more major companies at once than almost anyone in modern business — across cars, rockets, AI, brain implants, tunnels and social media. Here’s a clear map of each one, what it actually does, and how they fit together.
Tesla
The company that made Musk a household name. Tesla builds electric vehicles, but it’s better understood as an energy and robotics company that happens to sell cars: it also makes home and grid battery storage, solar products, self-driving software, and humanoid robots. Tesla is publicly traded and remains the foundation of Musk’s wealth.
SpaceX
SpaceX is the space company behind the Falcon 9 — the first reliably reusable orbital rocket — as well as the Dragon capsule that flies astronauts to the International Space Station, the Starship program aiming for the Moon and Mars, and Starlink, its satellite internet service. Long the most valuable private company in the world, SpaceX went public in June 2026 in the largest IPO in U.S. history — and, having absorbed xAI (maker of Grok) months earlier, it’s now an AI powerhouse as well as a rocket maker.
xAI and X
xAI is Musk’s artificial-intelligence company, maker of the Grok chatbot and the models behind it. It’s positioned as a direct competitor to OpenAI, Anthropic and Google. xAI is tightly intertwined with X (formerly Twitter), the social platform Musk acquired in 2022 — Grok is built into X, and the two have been folded into a single corporate structure — which was itself absorbed into SpaceX in early 2026, around the time SpaceX also moved to buy Cursor.
Neuralink
Neuralink develops brain–computer interfaces: implantable chips designed to let people control devices with their thoughts. Its near-term goal is medical — helping people with paralysis — with a far longer-term ambition of high-bandwidth links between brains and computers.
The Boring Company
The Boring Company digs tunnels, aiming to cut the cost of underground construction and relieve city traffic with networks of tunnels for electric vehicles. Its most visible project is the Loop system in Las Vegas.
How they connect
These aren’t unrelated bets — they share a common thread and often share technology and talent:
- Manufacturing know-how flows between Tesla and SpaceX.
- AI developed at Tesla (self-driving) and xAI (Grok) overlaps.
- Musk’s AI bets are converging — Grok, the Cursor coding editor and more are increasingly linked; we map it in Musk’s AI empire after Cursor.
- A recurring theme — energy, autonomy and getting humanity “multiplanetary” — ties the rockets, cars, robots and AI into one worldview.
Quick reference
| Company | Field | Status |
|---|---|---|
| Tesla | EVs, energy, robotics | Public |
| SpaceX | Rockets, Starlink, AI | Public (IPO 2026) |
| xAI / X | AI, social media | Part of SpaceX |
| Neuralink | Brain–computer interfaces | Private |
| The Boring Company | Tunneling | Private |
FAQ
How many companies does Elon Musk run?
He leads five major ones — Tesla, SpaceX, xAI/X, Neuralink and The Boring Company — plus various subsidiaries and projects within them.
Which Musk companies can I invest in?
Two are now publicly traded: Tesla and SpaceX, which listed in a record-breaking IPO in June 2026. xAI is part of SpaceX, while Neuralink and The Boring Company remain private — so their shares aren’t available to the general public on a stock exchange.
What is xAI?
xAI is Musk’s AI company and the maker of Grok. It’s tied to the X platform and, since early 2026, part of SpaceX.
Corporate structures and ownership change over time. This overview reflects the current picture and is reviewed periodically.