Mantel
PrivateLast Round
Strategic
Aug 24, 2026
Total Funding Raised
$50M
Momentum
Top 1%
of companies Caplight tracks
Company Overview
Mantel is a carbon capture technology company that develops high-temperature, molten-salt based carbon capture systems for industrial applications such as steel, cement, and chemical manufacturing.
Sector
Energy & Sustainability
Verticals
Carbon Capture, Clean Manufacturing
Business Model
B2B
Customer Profile
Services & Consulting, Hardware Sales
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Mantel Comparables
Compare Mantel with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Mitico | 79% | |
| ION Clean Energy | 78% | |
| KC8 Capture Technologies | 77% | |
Mantel Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Strategic | Aug 24, 2026 | ||||
| Series A | Sep 5, 2024 | ||||
| Seed | Aug 23, 2022 |
Key People
Founding team and executive leadership
Mantel Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Hartree Partners | Strategic, Series A |
| Engine Ventures | Strategic, Series A, Seed |
| Constellation Technology Ventures | Strategic |
| Azimut | Strategic |
| Azimut Investments | Strategic |
| Arosa Capital Management | Series A |
| My Climate Journey Collective | Strategic, Series A |
Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 24, 2026
Raised $18M led by Azimut Holding and Constellation Technology Ventures
- Aug 21, 2026
Monthly visitors increased 275% MoM, reaching 5.1K.
Mantel 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 Mantel's valuation, stock price, and market status.