Technology

Elon Musk's Tunneling Company Is Trying to Raise $4 Billion

Martin HollowayPublished 6d ago4 min readBased on 6 sources
Reading level
Elon Musk's Tunneling Company Is Trying to Raise $4 Billion

Elon Musk's The Boring Company is in talks to raise approximately $4 billion in new funding at a valuation of about $20 billion, according to unnamed sources cited by The Wall Street Journal. The WSJ reports that the deal has not closed and the terms could change.

A valuation is the total dollar amount investors agree a private company is worth. When a company raises money, it sells a portion of itself to investors at that agreed-upon value. The $20 billion figure would be a big jump from The Boring Company's previous valuation of $5.7 billion, set during a 2022 funding round that raised $675 million and was announced by the company on April 20 of that year.

The story was first reported by the Journal. TechCrunch, in an In Brief post by Anthony Ha published July 25, 2026, attributed the story to the WSJ, and Reuters corroborated the figures with its own headline: "Musk's Boring Company seeks funding at $20 billion valuation, WSJ says." Both outlets cite the same underlying Journal reporting.

Founded in 2016 and spun out of SpaceX in 2018, The Boring Company has spent the intervening years working to commercialize urban tunneling. Its most developed project is a network of tunnels under Las Vegas, through which Tesla vehicles shuttle passengers between stations. The company has also announced plans to build tunnel networks in Nashville and Dubai, and according to the WSJ, has pitched projects in Baltimore, Chicago, and Los Angeles.

The scale of the proposed raise, $4 billion, is notable for a company whose actual work on the ground remains limited. The Las Vegas system, while operational, is the only project the company has delivered at production scale. The Nashville and Dubai expansions are announced but not yet built out, and the Baltimore, Chicago, and Los Angeles pitches appear to be earlier-stage proposals. A capital injection of this size would presumably be directed at accelerating construction across multiple locations simultaneously, though neither the Journal nor the company has specified the intended use of funds.

The funding talks also come against a regulatory backdrop that is not entirely clean. Nevada regulators said in 2025 that The Boring Company violated environmental regulations nearly 800 times, per TechCrunch's reporting. The specifics of those violations and their resolution status are not detailed in the available reporting, but the volume of citations is the kind of figure that would typically factor into due diligence for a round of this magnitude.

The broader context here is that a $20 billion valuation places The Boring Company in a tier occupied by late-stage private companies with substantially more revenue or user base. In other words, investors would be paying for the company's potential future contracts rather than what it has built so far. Tunneling is capital-intensive, regulatory-heavy, and slow to scale, and the gap between announced projects and delivered systems is wide. Whether a $4 billion raise closes the execution gap or merely extends the runway is the question anyone writing the check will need to answer.

The timing of the Journal's original publication is worth noting. The WSJ's Entrepreneurship section listing suggests the story was first published around July 4, 2026, with TechCrunch and Reuters amplifying the report on July 25. The three-week gap between the original scoop and the secondary coverage is consistent with a story that gained traction as the funding environment for large private rounds tightened or shifted.

The Boring Company has not issued a public statement on the funding talks. The WSJ's reporting rests on unnamed sources, and the explicit caveat that terms could change means the final round, if it materializes, may look different from what is currently described.