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
Hardware Sales, Services & Consulting
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.
Recent news
Latest coverage and updates
- receives_financingAug 25, 2026
Mantel Capture, Inc. received financing of $18M in Series A1 on Aug 24th '26.
- is_developingJul 8, 2026
Mantel Capture, Inc is developing standardized plant designs on Jul 8th '26.
- partners_withJul 8, 2026
Mantel Capture, Inc partnered with Aalborg CSP on Jul 8th '26.
- is_developingJul 8, 2026
Mantel Capture, Inc is developing modular salt tank systems for carbon capture deployment on Jul 8th '26.
Mantel Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
Request accessFrequently Asked Questions
Common questions about Mantel's valuation, stock price, and market status.
Is Mantel a public or private company?
Mantel is a private company.
What is the current stock price of Mantel?
Mantel is a private company with no public stock price. No recent secondary market data is available.
How much is Mantel worth (valuation)?
Valuation information for Mantel is not publicly available.
Can I buy Mantel stock?
Mantel shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.
When was Mantel's last funding round?
Mantel's most recent funding round was Series A on September 5, 2024.
Who are the main investors in Mantel?
Key investors in Mantel include Engine Ventures, Shell Ventures, Engine Ventures, Eni Next.
Will Mantel IPO soon?
No public IPO plans have been announced for Mantel.
How can I track Mantel secondary market activity?
Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor Mantel's secondary market activity and sign up for updates.