10 September 2026
On 9 September 2026 The Boring Company announced a Series D funding round of USD 3 billion led by the United Arab Emirates and affiliated investment entities, a financing that values the company at USD 23 billion. The capital is tied to an agreement to deploy more than 150 kilometres of underground infrastructure across the UAE, in addition to the Dubai Loop project already awarded. At the official peg of 3.6725 dirhams to the dollar the round is worth roughly AED 11 billion and the valuation roughly AED 84.5 billion (our conversion, not a figure published by the company). Neither the route map, the cost, nor the schedule for those 150 kilometres has been published.
What the company actually announced
The announcement sits on The Boring Company’s own site, dated 9 September 2026, and was picked up across regional business media on 10 September. Three numbers carry it: USD 3 billion raised, USD 23 billion valuation, and “150+ kilometers of tunnel” described as a partnership in the UAE. The company states plainly that this landmark agreement is “in addition to the Dubai Loop project previously awarded”, which means the 150 kilometres are new scope rather than a restatement of the Dubai contract.
The stated use of proceeds is threefold: increase hiring across engineering, operations and production; build and scale Loop projects including Vegas Loop, Music City Loop in Nashville and Dubai Loop; and accelerate research and development of the Prufrock tunnel boring platform and future products. Founder Elon Musk framed the mission in the announcement in one line: “Defeating traffic is the ultimate boss battle.”
Who put the money in
The round is led by “the United Arab Emirates and affiliated investment entities”. The company does not itemise which sovereign or quasi sovereign vehicles sit behind that phrase. The named co-investors are Human Capital, Vy Capital, Valor Equity Partners, Sequoia Capital, A16Z, Temasek, Shamal Holding and Baron Capital, plus unnamed existing and new investors. Of that list only Shamal Holding, a Dubai headquartered investment firm, is a UAE name disclosed individually.
For context on the repricing: the previous round, a USD 675 million Series C in April 2022, valued the company at about USD 5.675 billion. The Series D therefore lifts the valuation roughly fourfold in a little over four years.
Dubai Loop: the part that is already under contract
The 150 kilometre headline is new. Dubai Loop is not. On 3 February 2026, on the sidelines of the World Governments Summit, Dubai’s Roads and Transport Authority signed a definitive partnership agreement with The Boring Company to start implementation. It was signed by His Excellency Mattar Al Tayer, Director General and Chairman of the Board of Executive Directors of the RTA, and by James Fitzgerald, Global Vice President of Business Development at The Boring Company. That agreement followed a study agreement signed at the World Governments Summit in 2025, under which the RTA supplied geotechnical data, utility and structures information, environmental risk assessments and Dubai transport specifications, while the company submitted technical studies, safety information and proposed alignments.
The published parameters of the contracted project are specific:
| Parameter | Pilot route | Full alignment |
|---|---|---|
| Length | 6.4 km (4 miles) | up to 22.2 km (RTA figure; the company states 14 miles, about 22.5 km) |
| Stations | 4 | 19 |
| Alignment | Dubai International Financial Centre to Dubai Mall | Dubai World Trade Centre and the financial district to Business Bay |
| Estimated cost | about USD 154 million (AED 565 million) | about USD 545 million (AED 2 billion) |
| Stated delivery period | about one year after design completion | about three years |
| Projected capacity | about 13,000 passengers per day | about 30,000 passengers per day |
| Tunnel diameter | 3.6 m (12 feet), dedicated to vehicle transport | |
Two operational details are worth holding on to. First, before tunnelling can start the company has to obtain approximately 48 permits and no objection certificates from about 10 different entities, a figure it published itself. Second, precast production for the pilot is already underway: the first phase alone will consume roughly 25,000 concrete segments of about 4,000 pounds each. In the February statement the target was to begin tunnelling in the second half of 2026; in the September statement the wording has become “construction planned to begin in late 2026”.
What the 150 kilometre agreement does not say
This is where a reader should be careful. The announcement is a financing statement, not a project document, and a great deal that would let anyone plan around it is absent:
- No route map. No emirates, corridors or station counts are named for the 150 kilometres.
- No cost. The USD 3 billion is equity raised by the company, not a published construction budget for the UAE programme.
- No schedule. There is no start date, no phasing and no completion horizon.
- No named counterparty. Dubai Loop is contracted with the RTA. For the wider 150 kilometres the counterparty is described only as the UAE and affiliated entities.
- No tunnel type. The company builds passenger Loop, utility and freight tunnels. Which mix the 150 kilometres covers is not stated.
- No fare or operating model. Nothing has been published on pricing, operator or concession structure for Dubai Loop.
Until those are published, the honest description of the 150 kilometres is a funded intention backed by one live contract, not a construction programme with a timetable.
The machines behind the promise
The reason the company can talk about scale at all is a change in its own equipment. The Prufrock platform is now launched and retrieved directly from a transporter called The Monster, which removes the traditional launch pit, crane and heavy civil preparation that normally precede tunnelling in a dense city. In May 2025 the company demonstrated Zero People in Tunnel continuous mining, advancing the machine and erecting a full ring at the same time with no crew underground. By August 2026 ring building was fully autonomous: six concrete segments of about 3,750 pounds each placed to millimetre precision in under a minute, monitored remotely from a control centre in Texas. Supporting equipment introduced in the same period includes an all electric segment hauler built on Tesla Model 3 battery and drive units, and a continuous conveyor rated at up to 990 tons of material per hour.
The track record behind the raise is mostly American. Vegas Loop has carried more than four million passengers, Clark County has entitled 123 stations, and the Encore connector was completed in under 12 weeks, turning a 15 minute surface trip into roughly 55 seconds underground. In Nashville, Music City Loop received its Tennessee Department of Transportation permit on 25 February 2026 and started tunnelling the same day, the company’s first hard rock project. Dubai is its first major overseas tunnelling deployment.
Where this sits in the UAE transport build out
Dubai Loop is one line in a much larger construction cycle. The UAE has begun building its first high speed rail link between Abu Dhabi and Dubai, the emirate is extending its rail network in a way that is already redrawing the property map around the Metro Blue Line, the Gold Line and Etihad Rail, and the RTA continues to spend heavily on surface capacity, including AED 1.161 billion on Al Meydan Street and new grade separations such as the Oud Metha tunnel. What distinguishes the Boring Company arrangement is the funding direction: here the state is not only the client, it is the lead investor in the contractor.
What this means for companies in Dubai
The practical reading is narrow and worth keeping narrow. The pilot alignment runs under the densest office and retail corridor in the city, from DIFC to Dubai Mall, and the full alignment adds Dubai World Trade Centre and Business Bay. Companies with offices, showrooms or event commitments along that corridor are the ones sitting on a published alignment; everyone else is looking at a route that has not been drawn. Construction on the pilot is planned to begin in late 2026 with delivery stated at about one year after design completion, so the earliest realistic operating date is not immediate, and it depends on roughly 48 approvals that have not been confirmed as granted.
Nothing in the announcement changes a licence, a fee, a visa rule or a tax position. It does not create an approval anyone can apply for. For a business planning a Dubai footprint, the useful takeaway is the direction of state capital and the specific corridor named in the contract, not a date to build a lease decision around.
How Atlant Capital can help
We work with the parts of a UAE entry that are actually actionable today. That means company registration on the mainland and in the free zones, choosing the licence and jurisdiction that match how the business will really trade, corporate and personal bank account opening with a properly assembled KYC and source of funds package, and residency and work visas for founders, families and staff. Accounting, audit, VAT and corporate tax filing are handled by licensed accounting firms from our partner network rather than in house. We do not promise approvals, rates or timelines that a regulator or a bank has not given in writing.
FAQ
How much did The Boring Company raise and at what valuation?
The Boring Company raised USD 3 billion in a Series D round announced on 9 September 2026, at a valuation of USD 23 billion. The round was led by the United Arab Emirates and affiliated investment entities. Named co-investors include Human Capital, Vy Capital, Valor Equity Partners, Sequoia Capital, A16Z, Temasek, Shamal Holding and Baron Capital.
Where in the UAE will the 150 kilometres of tunnels be built?
That has not been published. The company states more than 150 kilometres of underground infrastructure across the UAE, but no emirates, corridors, station counts, costs or dates have been released for that scope. The only alignment under contract is Dubai Loop, agreed with Dubai’s Roads and Transport Authority in February 2026.
What exactly is Dubai Loop and when does construction start?
Dubai Loop is a vehicle tunnel system with 3.6 metre diameter tunnels. The pilot covers 6.4 km and four stations linking DIFC and Dubai Mall, estimated at about USD 154 million (AED 565 million), with construction planned to begin in late 2026 and delivery stated at about one year after design completion. The full alignment extends to about 22.2 km and 19 stations, connecting Dubai World Trade Centre and the financial district with Business Bay, estimated at about USD 545 million (AED 2 billion) over roughly three years.
How many passengers will Dubai Loop carry?
According to the RTA, the pilot route is expected to serve about 13,000 passengers per day and the full route about 30,000 passengers per day. Loop is a point to point system: passengers travel directly to their destination station rather than stopping at intermediate stations, which is how it differs from a metro line.
Does this announcement change anything for company owners in the UAE?
Not directly. It is a financing announcement plus a stated intention to build. It does not alter licensing, visa, banking or tax rules, and it does not open any procedure a business can apply to. The concrete element is the contracted Dubai Loop alignment through DIFC, Downtown, Dubai World Trade Centre and Business Bay.
