The Boring Company
TB
The Boring Company is a tunnel construction firm focused on underground transportation. It develops tunnel boring machines and builds Loop tunnels that carry passengers in electric vehicles. The company also works on projects for utility and other underground corridors.
Founded by Elon Musk (Founder)
Blended valuation$23.9B$25.9B secondary
Valuation history
Weekly blended valuation with priced funding rounds marked on the timeline.
$25.5B
blended valuationfunding round
Mar 28, 2022$4.2BOct 5, 2026
All rounds
4 funding rounds, newest first.
| Round | Announced | Raised | Post-money |
|---|---|---|---|
| Series D | Sep 10, 2026 | $3B | $23B |
| Series C | Apr 20, 2022 | $675M | $5.7B |
| Series B | Jul 25, 2019 | $120M | $920M |
| Series A | Apr 16, 2018 | $113M | $568.5M |
Investors
26 investors across all rounds.
- SCSequoia Capital
- 8V8VC
- VEValor Equity Partners
- VCVy Capital
- CVCraft Ventures
- DFDFJ
- DGDFJ Growth
- FFFounders Fund
- HCHuman Capital
- KGK5 Global
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Secondary market activity
Recent buy and sell interest for The Boring Company shares on the secondary market.
| Kind | Implied valuation | Price / share | Date |
|---|---|---|---|
| $25.9B | $19.59 | Sep 29, 2026 | |
| $6.8B | $23.58 | Jul 24, 2026 | |
| $6.7B | $23.11 | Jul 17, 2026 |
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Data as of Oct 15, 2026. Valuations are estimates blended from primary and secondary-market signals — not investment advice.