Mantle8
PrivateLast Round
Series A
May 13, 2026
Total Funding Raised
$42M
Company Overview
Mantle8 is an energy exploration company that uses proprietary technology combining geophysics, geochemistry, and seismic data to detect natural hydrogen locations.
Sector
Energy & Sustainability
Verticals
Renewable Energy, Alternative Fuels, Data Integration, Data Visualization
Business Model
B2B
Customer Profile
Services & Consulting, Data as a Service, Government Contracts
AI Layer
Application
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Mantle8 Comps
Public and private peers based on sector, stage, and business model.
Mantle8 Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A | May 13, 2026 | ||||
| Grant | Mar 10, 2026 | ||||
| Seed | Feb 7, 2025 |
Mantle8 Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| EU Just Transition Fund | Grant |
| IP Group | Series A |
| Sandwater | Series A |
| Breakthrough Energy Ventures | Series A |
| Breakthrough Energy Europe Fund | Seed |
| Wind Capital | Series A |
| Bpifrance | Series A |
Market signals
Structured signals derived from secondary market and firmographic data.
- May 13, 2026
$36M round led by Sandwater.
- Mar 10, 2026
$2.2M raised in a Grant round.
Mantle8 Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
Common questions about Mantle8's valuation, stock price, and market status.
