Elon Musk’s Boring Company is in talks to raise approximately $4 billion in new funding, a move that would value the tunneling startup at around $20 billion. The proposed valuation marks a significant increase over the company’s previous confirmed valuations from 2022 and 2025.
The funding round has not yet closed, and sources familiar with the discussions cautioned that the final terms could still change. If successful, the $4 billion investment would rank among the larger recent private-market technology funding rounds, according to reporting from Investing.com. The Wall Street Journal reported the news on Friday, citing people familiar with the talks. Boring Company President Steve Davis did not respond to requests for comment, and the company could not immediately be reached for comment outside regular business hours.
A Steep Valuation Climb from $5.7 Billion
The jump to a $20 billion target represents a stark contrast to the company’s recent financial history. In 2022, the Boring Company was valued at $5.7 billion following a $675-million fundraising exercise involving investors such as Sequoia Capital, Vy Capital, and Founders Fund.
The path to $20 billion has been volatile. While some estimates placed the firm as low as $5.7 billion during 2025, other data points showed a climb to $8.6 billion in July 2023 and approximately $9.6 billion by September 2025. Seeking capital at the current $20 billion mark would require the company to convince investors of a value more than double its last confirmed pricing from September 2025, representing a roughly 108% markup over where the company was priced less than a year ago.
| Period/Event | Valuation Figure |
|---|---|
| 2022 Funding Round | $5.7 billion |
| July 2023 | $8.6 billion |
| September 2025 | $9.6 billion |
| Current Target | $20 billion |
This disconnect is particularly sharp when compared to secondary-market trading in 2025, where estimates dipped back toward the $5.7 billion level. As of mid-2026, reported share price estimates have hovered near $24.63 per share, though these figures fluctuate. No new funding round at the $20 billion valuation has been confirmed as of July 2026, and the figure appears to stem from market chatter rather than a signed term sheet.
The Vegas Loop and Global Expansion
Founded in 2016, the company develops tunneling machines intended to reduce the cost of underground construction. Its valuation is heavily tied to the success of its flagship project, the Vegas Loop in Las Vegas, Nevada. Having begun transporting passengers in 2021, the system currently operates eight stations and has carried more than 3 million passengers. The network continues to expand across hotels and the Las Vegas Convention Center.
Beyond Nevada, the company is attempting to prove its model is scalable. It is currently funding a privately developed underground loop in Nashville. In Dubai, the company signed an initial pact last year with the Road and Transport Authority to create the Dubai Loop, an underground high-speed transport network spanning 17 km (11 miles). According to a February announcement, the first phase of this system would cover four miles, cost about $154 million, and take one year to complete.
However, the record of expansion is mixed. Several previously proposed transit systems in Los Angeles, Chicago, and Baltimore failed to progress. Those projects were presented as privately financed networks that would generate revenue from passenger fares.
Infrastructure Narratives and Market Risk
The Boring Company does not rely on the cash flow of a single project for its pricing. Instead, it attracts financing through the story of replicable underground transportation networks,
according to ABAB News. Once a valuation of $20 billion is reached, the market is essentially pricing in future projects in more cities.
This strategy mirrors a pattern seen in other Musk projects, such as Tesla and SpaceX, which emphasized first build the infrastructure
in their early stages. The approach involves securing capital with a high-concept infrastructure narrative and then maintaining valuation with limited but visible engineering progress. Structurally, this represents a concentration of capital on Musk’s personal brand, the Vegas Loop model project, and expectations for subsequent urban expansion.
Musk’s business interests include Tesla, SpaceX and Neuralink. The Boring Company was founded to develop tunneling technology and transport systems to carry passenger pods through underground, low-pressure tubes between cities. To date, the company has raised about $908 million from investors including Vy Capital, Sequoia Capital, and Valor Capital Group.
The stakes for this round are high: a successful raise would signal that institutional capital still views Musk’s infrastructure bets as aggressive winners. Conversely, a failure to hit this valuation or a “down round” could signal a shift in how the market perceives the viability of his tunneling technology.
